Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context

Alain Kossoun Tossa; Said Ibrahim Adetayo Aballo; Souad Mamadou; Odette Fokapu

doi:doi:10.11648/j.sjee.20251302.14

Research Article |

| Peer-Reviewed

Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context

Alain Kossoun Tossa^*

, Said Ibrahim Adetayo Aballo

, Souad Mamadou, Odette Fokapu

Published in Science Journal of Energy Engineering (Volume 13, Issue 2)

Received: 15 May 2025 Accepted: 30 May 2025 Published: 23 June 2025

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Abstract

Availability and optimization of energy consumption are essential for the success of poultry activities. This is a strategic problem for food security in Benin and more broadly in West Africa. This article presents Tak-Avipack 1, an intelligent system designed to ensure availability at lower cost of energy while guaranteeing the main functionalities necessary for the adequate development of poultry: thermal regulation, lighting, hygiene and biosecurity etc. Based on an integrated IoT architecture, Tak-Avipack 1 incorporates environmental sensors (temperature, humidity, NH₃, CO₂, CO, PM2.5), a high-efficiency catalytic gas heater and dynamically controlled LED lighting. Its food is provided by three energy sources: photovoltaics, the conventional network (if available) and gas (which can be butane or biogas). These systems are optimally sized, and their intelligent hybridization guarantees continuous operation in rural areas. A local decision-making algorithm adjusts thermal parameters, air and lighting flows in real time, minimizing energy consumption. With the GSM / GPRS resilient connectivity and an offline mode with local storage, the system remains functional in the absence of a network. An economic assessment carried out on a model farm with 1,000 weighted hens shows a return on investment of less than six months, with an expected increase of 15% of egg production and a 20% reduction in mortality. Tak-Avipack 1 thus represents an appropriate, accessible and scalable solution to support the transition to tropicalized poultry cultivation.

Published in	Science Journal of Energy Engineering (Volume 13, Issue 2)
DOI	10.11648/j.sjee.20251302.14
Page(s)	71-86
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2025. Published by Science Publishing Group

Keywords

Solar Energy, Precision Poultry Farming, Internet of Things (IoT), Energy Efficiency

1. Introduction

Poultry farming is a key lever for food security and socioeconomic development in West Africa. In Benin, the demand for poultry products, particularly eggs, increased by nearly 50% between 2020 and 2023

[1]

. However, the sector remains characterized by a high dependence on imports and low local productivity, with an average of 0.16 kg of eggs per bird, well below the global average

[2]

. A recent study shows that only 9% of traditional farms and 18% of modern farms are cost-efficient

[2]

. Low production is primarily due to technical gaps among producers, rather than poor resource management

[3]

. Human capital, veterinary care, and the experience of poultry farmers play a crucial role in the performance of farms. In light of the progressive ban on imports, modernizing these farms is essential to achieve national self-sufficiency

[4]

Despite their potential, west Africa poultry farms suffer from outdated management systems, lacking precision in controlling environmental parameters and relying on unstable energy sources in rural areas. Additionally, the absence of traceability and disease detection mechanisms leads to economic losses. Advanced technologies, such as IoT-based precision poultry farming, struggle to gain traction due to their cost and integration complexity.

This paper presents Tak-Avipack 1, an innovative solution combining bioclimatic monitoring, energy autonomy, and performance tracking to enhance the productivity of small to medium-sized poultry farms. Based on field data and testing, this solution demonstrates real potential to optimize technical efficiency, reduce losses, and support national self-sufficiency in animal proteins.

1.1. Environmental Factors in a Poultry House

The well-being and productivity of poultry are closely linked to the environmental conditions within the poultry house. Among the most determining factors are temperature and relative humidity, whose combination directly affects thermal comfort. Air quality, measured through concentrations of ammonia (NH₃), carbon dioxide (CO₂), carbon monoxide (CO), hydrogen sulfide (H₂S), and fine particulate matter (PM2.5), also plays a crucial role in the respiratory health of the animals.

1.1.1. Thermal Stress

Thermal stress is one of the primary limiting factors of laying hen performance, especially in tropical regions such as Benin. When ambient temperature exceeds the thermal comfort zone of poultry, typically between 18 and 24°C

[5–7]

, the classic heat dissipation mechanisms (conduction, convection, and radiation) become ineffective. The chickens then rely on panting, a highly energy-consuming process that expels heat through water evaporation, consuming up to 580 calories per gram of water evaporated

[5]

. This physiological adaptation is typically accompanied by a decrease in food consumption, leading to a reduction in egg production, egg weight, and shell thickness. These physiological alterations reflect an energy imbalance caused by chronic hyperthermia in laying hens. It should be noted, however, that during the brooding phase corresponding to the early stages of chick development higher ambient temperatures are required.

Download: Download full-size image

Figure 1. Temperature and humidity stress index for laying hens (THI)

[10]

Thermal stress is not solely dependent on dry bulb temperature but also on the temperature-humidity relationship, commonly expressed as the effective temperature. Thus, high relative humidity exacerbates the thermal discomfort of poultry, even with moderate temperatures. To quantify this interaction, several indices have been developed, the most commonly used being the temperature-humidity index (THI), defined as follows

[8, 9]

THI = 0.6 T_{db} + 0.4 T_{wb}

(1)

where

T_{db}

is the dry-bulb temperature and

T_{wb}

is the wet-bulb temperature.

Based on this index, Hy-Line International

[10]

developed a thermal stress index table for commercial laying hens during rearing and production phase, shown in Figure 1.

High levels of the temperature-humidity index (THI 81–85) lead to a significant decrease in laying hen performance: egg production drops to 88.3% (compared to 98.7% at THI 68), average egg weight decreases to 48.1 g (compared to 59.7 g), and feed consumption dramatically drops

[11]

. Controlled condition experiments confirm these effects. This study

[12]

observed that constant thermal stress (35°C, 50% RH) reduced body weight (1,233 g vs. 1,528 g), decreased consumption (41.6 g/day vs. 86.7 g/day), and increased mortality (31.7% vs. 5%). Similarly,

[13]

demonstrated that an environment at 31°C and 82% RH decreased egg production and thinned the shell.

In West Africa, as revealed by a study in Nigeria

[14]

, climatic conditions exacerbate this stress: high temperatures (23–29°C), excessive humidity (75–93%), and a low proportion of the day spent within the thermal comfort zone (<24°C). This combination promotes hot spots on the ground and compromises natural ventilation, making active environmental management essential to preserve poultry productivity.

1.1.2. Air Quality

Atmospheric pollutants such as ammonia (NH₃), carbon dioxide (CO₂), fine particulate matter (PM), and hydrogen sulfide (H₂S) have direct and measurable effects on the productive performance of poultry. Prolonged exposure to high concentrations of NH₃ (>100 ppm) significantly reduces egg production (up to -6.3%)

[15]

, causes weight loss, and increases mortality, particularly during the early laying cycle. Similarly, CO₂ levels exceeding 3,000 ppm disrupt acid-base balance and shell quality (a -12% reduction in thickness)

[16]

, while temporarily decreasing egg production and doubling early mortality

[17]

. These effects are exacerbated in poorly ventilated conditions, where CO₂ levels are further elevated using direct combustion heaters.

Fine particles, although less frequently quantified in direct relation to productivity, cause lung damage and immune stress, which can indirectly affect performance, particularly through increased susceptibility to infections

[18, 19]

. Hydrogen sulfide (H₂S), even at low concentrations, decreases food intake, reduces live weight (-25%), and impairs product quality (meat, eggs)

[20, 21]

. Thus, beyond their health impacts, these pollutants represent a major limiting factor in poultry farm profitability, making stringent control of ventilation and environmental conditions essential. Table 1 presents the recommended limit values for laying hens:

Table 1. Recommended air pollutant limits at the level of laying hens.

Compound

Target Value (Humane Farm Animal Care 2014)

Maximum Allowed Value (Humane Farm Animal Care 2014)

Measured Values (Nigeria)

Ammonia (NH₃)

< 10 ppm

25 ppm (short-term period)

0,004–61 ppm

[22]

Hydrogen Sulfide (H₂S)

<0.5 ppm

2,5 ppm

0,02–13,1 ppm

[22]

Carbon dioxide (CO₂)

<3000 ppm

5000 ppm

707,511 – 858,694 ppm

[23]

Carbon Monoxide (CO)

≤ 10 ppm

50 ppm

Particulate Matter (PM)

≤ 1.7 mg/m³

5 mg/m³

0.01–1.75 mg/m³

[22]

A study by

[22]

, conducted in poultry farms in Edo State, Nigeria, reveals that ammonia (NH₃) and hydrogen sulfide (H₂S) are the most critical climatic pollutants in Nigerian poultry houses due to their high concentrations and harmful effects on animal and human health. Measurements show NH₃ concentrations reaching 61 ppm (six times the target value of 10 ppm) in substandard farms, and peaks of H₂S at 13.1 ppm (exceeding the recommended limit of 0.5 ppm by 26 times).

1.1.3. Lighting

Lighting plays a crucial role in poultry house management. It is not limited to providing light for the hens; it profoundly influences their physiology, behavior, and consequently, their productivity.

The photoperiod, i.e., the daily duration of exposure to light, directly impacts egg production in laying hens. Light stimulates the hypothalamus and pituitary gland, regulating the secretion of LH and FSH hormones necessary for ovarian maturation. A stable photoperiod of 14 to 16 hours per day maintains high egg production rates, while a sudden reduction in light exposure can cause a sharp decline in production

[24, 25]

. In chicks, it also affects growth and immune development. Therefore, lighting management is a key lever, beyond mere illumination, for optimizing zootechnical performance. Figure 2 illustrates a lighting program applied to a flock of laying hens

[26]

, in which the photoperiod is maintained constant throughout the laying period, ensuring hormonal stability and maintaining productive performance. Additionally, experimental data from Lewis (1996)

[26]

show that the number of eggs per hen increases proportionally with the duration of lighting, reaching an optimal plateau around 16 hours.

Download: Download full-size image

Figure 2. Lighting program for the breeding and laying of a flock located in Valencia, Spain

[26]

Beyond duration, the quality of light – particularly its color (wavelength) – plays a key role in the performance of laying hens. Several studies have highlighted the differential impact of light colors: red light promotes early sexual maturity, stimulates egg production, and enhances ovulatory frequency, while blue and green lights are more associated with calm behavior and improved growth in young poultry

[27, 28]

. LED lamps, which allow for precise adjustment of the light spectrum, offer an advantage over traditional fluorescent or incandescent lamps by combining energy efficiency with light spectrum optimization. Moreover, the stability of intensity and the absence of flicker in LEDs contribute to stress reduction and more consistent egg production. Thus, the choice of light source becomes a performance factor, alongside feed and ventilation, in the integrated management of the poultry house.

1.2. Current Technologies for Monitoring and Managing Parameters

1.2.1. Technological Advancements in Poultry Monitoring

The integration of Internet of Things (IoT) technologies and Artificial Intelligence (AI) has profoundly transformed the management of poultry farms, enabling real-time monitoring of environmental temperature conditions and early detection of behavioral anomalies. IoT sensors now measure critical parameters such as, humidity, air quality, and water levels, as demonstrated by a project developed in Tanzania, which improved animal health and reduced labor costs

[29]

. In parallel, AI is used to automatically analyze poultry behavior, achieving up to 98% accuracy in anomaly detection

[30]

. Furthermore, some intelligent systems ensure automatic regulation of feeding, drinking, lighting, and ventilation, thereby optimizing resource use and enhancing the overall efficiency of poultry operations

[31]

1.2.2. Existing Tools for Intelligent Poultry Farm Monitoring and Management

Numerous solutions combining IoT, cloud, and automation have emerged to improve poultry management.

Farmspeak Penkeep (Nigeria) offers an IoT platform that measures temperature, humidity, CO₂, NH₃, and water levels, with SMS and email alerts. However, its lack of offline mode and high cost (USD 2,000–3,000) limit its adoption by smallholders

[32]

Baku Global (Indonesia) provides a modular system focused on reducing food consumption and CO₂ emissions, but requires software subscriptions and recurring hardware costs, in addition to specialized installation, thus hindering its accessibility in Africa

[33]

NYB Systems (Bangladesh) offers IoT multi-sensor gateways compatible with industrial standards (CAN-BUS, MODBUS), targeted at large farms. Despite their robustness, these solutions require stable 4G/Wi-Fi connectivity and advanced infrastructure, which are poorly suited to rural tropical realities

[34]

Thus, while technically efficient, these tools face economic and local adaptation constraints, impeding their adoption in resource-limited African poultry farms.

1.2.3. Limitations Specific to the African Context

In several African countries, the adoption of IoT technologies in poultry farming is hindered by significant structural barriers. A study conducted in Tanzania highlighted three main obstacles

[29]

1. Prohibitive Cost: 43% of small farmers forgo these solutions due to their prohibitive cost.

2. Unstable Connectivity: Rural areas suffer from limited Internet access, necessitating solutions capable of operating in hybrid or offline modes.

3. Absence or Instability of the Grid: The instability or absence of electrical networks limits the use of automated systems, forcing farmers to resort to rudimentary and inefficient solutions (charcoal stoves, kerosene lamps, etc.).

These constraints highlight the mismatch between conventional systems and African realities, calling for the development of more resilient, adapted, affordable, and autonomous solutions.

1.2.4. Critical Analysis and Scientific Justification

A comparative analysis of existing solutions allows for the identification of several essential technical and functional criteria for designing a relevant system for resource-poor tropical contexts:

1. Acquisition and Operating Cost

2. Energy Autonomy

3. Energy efficiency

4. Hybrid/Offline Connectivity

5. Multi-Parameter Monitoring (gases, particles, temperature, humidity, etc.)

6. Embedded or Cloud Analysis Capability

7. Ease of Installation and Maintenance

8. Resistance to Tropical Conditions (heat, humidity, dust)

These solutions show notable advances, but none simultaneously meet all these characteristics. This technological and contextual gap forms the scientific basis for the development of Tak-Avipack 1, a frugal, robust, embedded, and scalable solution specifically designed for poultry farms in West Africa.

2. Methodology

2.1. Tak-Avipack 1 System Architecture

The Tak-Avipack 1 system is based on a three-layer interconnected architecture, optimized for poultry farming in rural areas of West Africa.

Download: Download full-size image

Figure 3. Tak-Avipack 1 System Architecture.

The field layer consists of sensors (DHT22, MQ135, SDS011, etc.) connected to a TTGO T-Call ESP32 microcontroller, which already includes GSM connectivity through the SIM800L module and a microSD card. This setup allows for local measurements (temperature, humidity, NH₃, CO₂, PM2.5, and PM10) and data transmission. The choice of these components reduces costs and simplifies assembly.

The transmission layer uses the GSM/GPRS network to send data in a lightweight JSON format, minimizing data consumption. In case of network outage, measurements are stored locally on the microSD card for later synchronization, ensuring continuity without data loss.

The visualization layer is based on an Angular web application coupled with Firebase Realtime Database. This open-source combination allows for dynamic visualization of parameters, management of alerts and users, while avoiding heavy infrastructure costs. Integrated reporting tools facilitate real-time zootechnical analysis. Figure 3 presents the architectural diagram of the Tak-Avipack 1 system. The diagram now shows only the system components organized according to the three main layers.

2.2. Operating Principle of Tak-Avipack 1 System

Tak-Avipack 1 system is based on an embedded architecture that integrates environmental sensors, intelligent actuators (heating, ventilation, lighting), and a control algorithm based on a hierarchical decision-making logic. Its goal is to ensure an optimal microclimate for poultry, improving productivity while reducing manual interventions.

2.2.1. Thermal Comfort

Sensors Used

1. DHT22: Measures ambient temperature (°C) and relative humidity (%)

2. Calculation of the THI (Temperature-Humidity Index), an indicator of thermal stress based on equation 1:

Table 2 present Critical Thresholds (Thermal Stress Scale) based on THI:

Table 2. Critical Thresholds and Corrective Actions for Thermal Comfort Management.

Level	THI Threshold	Status	Decision
1	THI<70	Comfort zone	No action
2	70<THI<80	Mild Stress	Moderate PWM Ventilation
3	80<THI<85	Moderate Stress	Heating OFF, Maximum Ventilation
4	THI>85	Severe Stress	Alert + Forced Ventilation

2.2.2. Air Quality

Sensors used:

1. MQ135: Ammonia (NH₃)z

2. MQ136 Hydrogen Sulfide (H2S)

3. SDS011: Fine particles (PM2.5 and PM10)

4. MG811: Carbon dioxide (CO₂)

5. MQ7: Carbon monoxide (CO)

The critical thresholds measured by these sensors and the corresponding corrective actions for air quality management are summarized in Table 3.

Table 3. Critical Thresholds and Corrective Actions for Air Quality Management.

Level	NH₃ (ppm)	CO₂ (ppm)	CO (ppm)	H₂S (ppm)	PM_2,5 et PM₁₀ (mg/m³)	Status	Decision
1	<5	<1000	<5	<0.1	<0.5	Acceptable	None
2	5-10	1000 – 2000	5-10	0.1 – 0,5	0.5-1.7	Moderately Polluted	Moderate Ventilation (30-50%)
3	10-25	3000 – 5000	10-50	0.5-2.5	1.7-5	Polluted	Strong Ventilation (70-100%)
4	>25	>5000	>50	>2.5	>5	Dangerous	SMS Alert + Maximum Ventilation

2.2.3. Lighting

Lighting Program

The lighting program follows a development curve based on the age of the poultry (Table 4):

Table 4. Poultry House Lighting Program.

Age Range (Weeks)	Target Lighting Duration
1 à 12	23 à 12h/jour
13 à 17	12h/jour
18 à 21	13 à 16 h/jour
>21	16h/jour

The goal of the lighting program is to promote feeding and growth during the startup phase, avoid early egg-laying during the juvenile phase, and optimize egg production at maturity.

Control of Light Intensity

The LEDs are gradually turned on/off to simulate dawn and dusk (avoiding stress)

[35]

The graph in Figure 4 represents the simulation of a complete day/night cycle over a 24-hour period, with a gradual light transition simulated by sigmoid functions for dawn and dusk. The equations used to model these transitions are as follows:

Dawn

I (t) = \frac{Imax}{1 + e^{- k (t - to)}}

(2)

Dusk

I (t) = \frac{Imax}{1 + e^{k (t - to)}}

(3)

The main parameters associated with these equations are:

1. Imax: Maximum light intensity (100%),

2. k: Slope factor, which determines the speed of the light transition, here k=5,

3. t0: The central point of the transition (dawn or dusk), specified for a full cycle t = 24h. t0_dawn = 7h, t0_dusk = 18h

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Figure 4. Complete Day/Night Cycle Simulation with a Sigmoid Function.

Automatic Decision

Based on age and time (RTC), the system adjusts:

1. The duration of artificial lighting required.

2. The intensity to simulate the natural ambiance.

3. Compensation if natural light is insufficient.

2.3. Sizing Actuators and Solar Power Supply

The sizing of the Tak-Avipack 1 system is based on the goal of ensuring complete energy autonomy for continuous operation in rural areas with low grid reliability. The consumption estimates were made considering the thermal, photoperiodic, and ventilation requirements of a poultry farm housing 1,000 laying hens.

2.3.1. Lighting

The purpose of the lighting is to ensure a luminous intensity in accordance with poultry standards for 1,000 laying hens, which is 10 lumens/m² throughout the poultry house. Table 5 presents the details of the sizing:

Table 5. Lighting Sizing.

Parameter

Value

Stocking density

5 hens/m²

[36]

Number of hens

1 000

Required area

1 000 / 5 = 200 m²

Lighting standard

10 lumens/m²

Required luminous flux

200 m² × 10 = 2000 lumens

LED luminous efficiency

100 lumens/W

[37]

Total lighting power consumption

2000 / 100 = 20 W

Efficiency (dust, reflection factor, etc.)

25%

Lamp unit power

5 W

Number of lamps

(20 x 1.25) /5=05 lamps

2.3.2. Heating

Heating in poultry farming in West Africa is essential during the chick startup period (0 to 5 weeks), during which the ambient temperature must be maintained between 31–33°C in the first week, then gradually reduced to the thermal comfort zone (18-24°C) by the fifth week. Table 6 summarizes the heating-sizing information:

Table 6. Heating Sizing.

Parameter

Value

Stocking density (Startup phase)

30 hens/m²

[5]

Occupied area

33.33 m²

External ambient temperature (Te)

27 °C

Desired internal temperature (Ti)

35 °C

[5]

Temperature difference (ΔT)

8 °C

Overall heat transfer coefficient (U)

5.32 W/m²·°C

[38]

Required thermal power (Pth)

1 418.5 W

Thermal power in kcal/h

1 219 kcal/h

Estimated transfer efficiency (Considered Radiation and convection losses)

85%

Corrected useful power

1 219 ÷ 0.85 ≈ 1 434 kcal/h

2.3.3. Ventilation

The sizing of the ventilation system aims to ensure sufficient air renewal to remove heat, humidity, and harmful gases (NH₃, H₂S, CO₂) produced by the poultry, in accordance with zootechnical recommendations. Table 7 presents the information and sizing of the ventilation system:

Table 7. Ventilation Sizing.

Parameter

Value

Average live weight at 30 weeks (Isa Brown)

1 870 kg

[39]

Recommended ventilation rate

0.7 à 4 m³/kg/h

[5]

Minimum ventilation at 0.7 m³/kg/h

$1, 870 \times 0, 7 \times 1000 = 1309 m 3 / h$

Maximum ventilation at 4 m³/kg/h

$1, 870 \times 4 \times 1000 = 7480 m 3 / h$

Required ventilation range

1 309 - 7 480 m³/h

Selected extractor type

Low consumption extractor 12V-1,700 m³/h / 370W with variable speed to compensate for potential pressure losses

2.3.4. Solar System (PV + Battery)

The Tak-Avipack 1 solar system must cover the following daily energy needs: lighting, burner startup, ventilation, and embedded electronics. Table 8 and Table 9 present the daily consumption estimates and sizing results, respectively.

Table 8. Daily Consumption Estimate.

Component	Power (W)	Operating Time (h/day)	Energy (Wh/day)
LED Lighting (5 lamps × 5 W)	25	12 (semi-dark building)	300
Burner startup (THD2608)	300	0.2 (estimated 12 min/day cumulative pulses)	60
Low consumption fan	370	6 h/day (estimated minimum ventilation)	2 220
Electronic system (ESP32, sensors, SIM800L, SD card)	5	24	120
Total energy consumed			2 700

Table 9. Sizing Summary.

Element	Specifications
Daily energy requirement	2 700 Wh/day
Photovoltaic panels	2 × 400 Wp
Battery capacity	2 × 12V – 300 Ah (with 80% max discharge)
Guaranteed autonomy without sunlight	1.5 days

2.4. Methodology for Evaluating the Expected Performance of the Prototype

The estimation of potential zootechnical gains associated with the implementation of Tak-Avipack 1 is based on a comparative modeling between a reference scenario (traditional farming without automation) and an optimized scenario incorporating the proposed system. Two main sources were used to define the baseline parameters and performance gaps:

The ISA Brown performance sheet

[40]

, which serves as a reference for the expected productivity standards for industrial laying breeds in controlled environments.

The empirical study by

[2]

on the technical inefficiency of poultry farms in Benin, which provides representative data for the local context.

2.4.1. Definition of Local Reference Values

According to

[2]

, modern laying farms in Benin exhibit:

1. An average laying rate of 74.9%,

2. An estimated annual production of 240 eggs per hen,

3. An average mortality rate of 9.48%,

4. A feed cost of 0.60 USD per egg produced,

5. And an average annual operating result of 6 525 USD for a farm of 1 000 laying hens

[41]

These data were used to characterize the reference scenario in the modeling.

2.4.2. Performance Projections with Tak-Avipack 1

The ISA Brown manual

[40]

identifies optimal performance achievable under controlled environmental conditions:

1. A laying rate > 90% during the stabilized production phase (22 to 50 weeks),

2. An average egg weight of 62 g,

3. A mortality rate reduced to less than 5%,

4. And a feed conversion ratio of less than 2.8 g of feed/g of egg.

The simulations conducted as part of this study did not use these optimal values but applied conservative assumptions adjusted from intermediate results of partially modernized farms. Therefore, the performance objectives set for Tak-Avipack 1 were as follows:

1. Target laying rate: 86.1%,

2. Eggs per hen per year: 276 (+15%),

3. Mortality reduced to 7.6% (i.e., -20%),

4. Reduction in feed cost per egg by 8%, linked to the reduction in thermal stress and optimization of consumption through better temperature and light regulation.

These projections are consistent with the expected impacts of improved microclimate and optimized photoperiod, as documented by

[12]

and

[13]

, and referenced in the literature review.

2.5. Methodology for Estimating Economic Performance

2.5.1. Framework of the Analysis

The economic evaluation of the Tak-Avipack 1 system was conducted considering a poultry production unit of 1,000 laying hens in a tropical environment. This farm size is representative of mid-scale commercial poultry farming in Benin

[42]

. The parameters used are based on recent literature averages for the poultry sector in Benin, enhanced by projections derived from the expected performance of the prototype.

2.5.2. Estimation of Additional Revenue from Egg Sales

The additional revenue generated by optimizing egg production is calculated using the difference between the egg selling price and the average production cost before optimization, along with the impact of reducing animal losses. The formula is expressed as follows:

RS = (Ps ​ - Cm ​) \times (Np \times (1 - Tpw ​)) \times (Ow - Owt)

(4)

Where:

Ps: selling price per egg,

Cm: average cost per egg before optimization,

Np: total number of hens,

Tpw: animal loss rate with Tak-Avipack,

Ow: number of eggs produced per hen per cycle with Tak-Avipack

Owt: number of eggs produced per hen per cycle without Tak-Avipack

2.5.3. Estimation of Reduction in Animal Losses

The savings achieved through the reduction in animal losses are given by:

RPA = (Tpwt - Tpw) ​ \times Np ​ \times Vp

(5)

Où:

Tpwt: animal loss rate per cycle without Tak-Avipack,

Np: total number of hens,

Vp: value of one hen at the end of cycle.

2.5.4. Calculation of Total Annual Gains

Total annual gains are obtained by adding the additional revenue from egg sales and the savings from reduced animal losses:

R ​ = RS + RPA

(6)

2.5.5. Investment Cost and Operating Cost

The investment cost is given by

Io

, and the annual operating cost is given by:

Cop ​ = Cmonth \times 12

(7)

Where:

Cmonth: monthly operating cost.

2.5.6. Calculation of Net Annual Gain

The net annual gain is obtained by subtracting the annual operating costs from the total annual gains:

Gnet ​ = R ​ - Cop

(8)

2.5.7. Calculation Net Present Value (NPV)

Net Present Value (NPV): The NPV represents the sum of all discounted cash flows generated by the investment, considering a discount rate. It reflects the project's capacity to generate value over its lifetime.

NPV = \sum_{t = 1}^{n} \frac{Gnet}{{(1 + r)}^{t}} - Io

(9)

Where:

Io = Initial Investment Cost (I₀)

r = Discount rate (10%)

n = Project lifetime (5 years assumed)

Discounted Payback Period (DRCI): The DRCI measures the time needed for the cumulative discounted cash flows to equal the initial investment. It adjusts the traditional payback period by accounting for the time value of money.

DRCI : Year where \sum_{t = 0}^{DRCI} \frac{Gnet}{{(1 + r)}^{t}} \geq Io

(10)

3. Results

3.1. Visual Presentation of the Prototype

The Tak-Avipack 1 prototype consists of a compact and modular electronic enclosure, integrating environmental sensors, a TTGO T-Call ESP32 microcontroller with a GSM SIM800L module, and thermal and lighting actuators. The entire system is powered by a standalone solar setup, ensuring autonomy for more than 24 hours without sunlight.

Photographs of the electronic assembly (Figure 5 and Figure 6) illustrate the meticulous integration of the components, while screenshots of the Angular web interface display the real-time dashboard, automatic alerts, and exportable history (Figure 7 and Figure 8). This design prioritizes field usability: robustness, energy efficiency, and ease of use.

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Figure 5. Photos of Tak-Avipack 1 electronic system.

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Figure 6. Photos of Tak-Avipack 1 deployed on a poultry house model.

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Figure 7. Preview of the web interface: Dashboard.

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Figure 8. Preview of the web interface: Lighting programming.

Figure 9 presents the experimental data collected during the testing of the Tak-Avipack 1 system on the poultry house model over the first six weeks of operation. The graph shows the evolution of ambient temperature, the activation cycles of the burner and the fan, and the resulting internal temperature regulation. These tests were conducted under simulated Cotonou Benin hot and humid climatic conditions (23–29°C, high humidity), to assess the system's capacity to maintain thermal comfort during the brooding and early growth phases. The results demonstrate the responsiveness and effectiveness of Tak-Avipack 1 in stabilizing the poultry house environment, despite external thermal variations.

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Figure 9. Temperature regulation in poultry houses for 06 weeks.

3.2. Economic Evaluation

The baseline assumptions used for the comparative analysis are summarized in Table 10:

Table 10. Assumptions of Tak-Avipack 1 performance.

Indicator	Without Tak-Avipack 1	With Tak-Avipack 1	Expected Change
Egg production rate (%)	74.9	86.1	+15%
Annual production (eggs/hen)	240	276	+15%
Average egg weight (g)	60	62	+3.3%
Mortality rate (%)	9.48	7.6	-20%
Feed cost per egg (USD)	0.060	0.055	-8.0%

Based on this, the economic performance for a 1,000-hen farm is estimated in Table 11:

Table 11. Economic Performance of Tak-Avipack 1 for a 1,000-Hen Farm.

Parameter	Value (USD)
Additional revenue (RS)	1 330.56
Reduction in animal losses (RPA)	94.00
Total annual gains (R = RS + RPA)	1 424.56
Initial investment cost (I₀)	1 612.50
Annual operating cost (Cop)	60.0*
Net annual benefit (R - Cop)	1 364.56
Net Present Value (NPV) (5 years, 10% discount rate)	3 560.26
Payback Period (DRCI)	1.33 years (~1 year 4 months)

* The recurring operating costs are estimated at 5 USD per month, including: preventive maintenance of the sensors, the GSM/GPRS package (data transmission), and basic software management.

4. Discussion

The cross-analysis of existing solutions in the field of connected poultry monitoring has identified eight essential criteria for their adoption in tropical contexts: (i) affordable acquisition and operational costs, (ii) energy autonomy, (iii) hybrid connectivity (including offline operation), (iv) diversity of environmental parameters measured (temperature, humidity, gases, particulate matter), (v) embedded analytical capabilities, (vi) ease of installation, (vii) hardware robustness, and (viii) adaptation to tropical conditions. An evaluation grid based on these criteria was applied to four reference solutions: Penkeep (Farmspeak), Zeus. AI (Zeus International), Baku Global, and NYB Systems.

Based on this framework, Tak-Avipack 1 stands out as the only solution that satisfactorily meets all these criteria. Economically, its deployment cost, under 1 600 USD, is significantly more affordable than other systems (ranging from 2 500 to 4 000 USD for most), while avoiding recurring subscription fees. Its operating cost, limited to 5 USD, makes it particularly accessible to small and medium-sized poultry farmers in Africa. In terms of energy, the fully solar-powered system guarantees autonomy in areas with unstable electricity supply. Furthermore, its GSM/GPRS connectivity, combined with offline operation and local storage, provides a decisive advantage for rural areas with limited broadband internet coverage.

Functionally, Tak-Avipack 1 integrates, from its basic version, temperature, humidity, ammonia (NH₃), carbon dioxide (CO₂), carbon monoxide (CO), and fine particulate matter (PM2.5) sensors, offering an extensive bioclimatic coverage rarely seen in this price range. In comparison, Penkeep and NYB Systems are limited to thermal and humidity measurements, while gas and particulate sensors in Zeus or Baku are available as optional modules or upon request. Additionally, Tak-Avipack 1 includes embedded decision-making logic, allowing automated activation of heating, lighting, or ventilation devices without relying on cloud infrastructure.

However, Tak-Avipack 1 does not yet feature artificial intelligence modules for behavioral analysis or early detection of diseases, unlike Zeus. AI or Penkeep, which already offer AI components integrated into their cloud. Nevertheless, its modular design, based on the ESP32 microcontroller, and its open software architecture allow for gradual complexity scaling, with the potential for these features to be integrated in future versions. These elements fully justify the approach leading to the development of Tak-Avipack 1: a frugal, robust, tropicalized, and scalable solution designed to democratize access to precision poultry farming in resource-limited countries.

5. Conclusion

The development of the Tak-Avipack 1 system addresses a structural issue in poultry farming in West Africa: the need to improve the zootechnical performance of farms in a context of high climatic variability, limited technical resources, and restricted access to imported innovations. By integrating environmental sensors, embedded control logic, and a web interface tailored to local realities, this prototype demonstrates the feasibility of a frugal yet effective technological approach for the automated management of laying hen living conditions. The results obtained through economic modeling and functional testing indicate that Tak-Avipack 1 can significantly contribute to improving egg production rates, reducing losses related to thermal stress and atmospheric pollutants, while also enabling a measurable reduction in production costs. Moreover, its energy autonomy, compatibility with GSM networks, and ease of use make it a viable solution for small and medium-sized farms in rural areas, often excluded from technological innovation dynamics.

Beyond its immediate relevance, Tak-Avipack 1 paves the way for new perspectives, including the future integration of artificial intelligence algorithms for the early detection of behavioral or health anomalies, as well as the networking of multiple units for regionalized farm monitoring. In this regard, this work represents the first step toward tropicalized precision poultry farming that is economically sustainable and technologically autonomous.

Symbol

Tdb	Dry-bulb Temperature (°C)
Twb	Wet-bulb Temperature (°C)
THI	Temperature-Humidity Index
Imax	Maximum Light Intensity (%)
k	Slope Factor of the Sigmoid Function
to	Center of the Transition (dawn/dusk time, in hours)
t	Time (hour of the day)
Ps	Selling Price per Egg (USD)
Cm	Cost per Egg before Optimization (USD)
Np	Number of hens
Tpw	Mortality rate with Tak-Avipack
Ow	Eggs per hen per Cycle with Tak-Avipack
Owt	Eggs per hen per Cycle without Tak-Avipack
Tpw	Animal Loss Rate with Tak-Avipack
Tpwt	Mortality Rate Without Tak-Avipack
Vp	Market Value of a Hen at the End of Cycle (USD)
R	Total Annual Revenue Gain (USD)
RS	Additional Revenue
RPA	Reduction in animal losses
Gnet	Net Annual Gain
Cop	Annual operating cost (USD)
Io	Initial investment cost (USD)
r	Discount rate (e.g., 10%)
n	Project lifetime (years)
DRCI	Discounted Payback Period
NPV	Net Present Value

Abbreviations

AI	Artificial Intelligence
CO	Carbon Monoxide
CO₂	Carbon Dioxide
DHT22	Digital Humidity and Temperature Sensor
EPAC	Polytechnic School of Abomey-Calavi
ESP32	32-bit Microcontroller by Espressif Systems
FSH	Follicle-Stimulating Hormone
GPRS	General Packet Radio Service
GSM	Global System for Mobile Communications
H₂S	Hydrogen Sulfide
IoT	Internet of Things
LED	Light Emitting Diode
LEMA	Laboratory of Energy and Applied Mechanics
LH	Luteinizing Hormone
MG811	CO₂ Gas Sensor
MQ135	Air Quality Sensor (NH₃, CO₂, etc.)
MQ136	Hydrogen Sulfide Sensor
MQ7	Carbon Monoxide Sensor
NH₃	Ammonia
NPV	Net Present Value
OCIS	Organization for the Competitiveness of Industries and Services (assumed)
PM	Particulate Matter
PM2.5 / PM10	Fine Particles (diameter < 2.5 µm / 10 µm)
PV	Photovoltaic
PWM	Pulse Width Modulation
RTC	Real-Time Clock
SD	Secure Digital (memory card)
SDS011	Sensor for Fine Particles (PM2.5 and PM10)
SIM800L	GSM/GPRS Module
Tak-Avipack 1	Prototype System for Climate-Smart Poultry Management
THI	Temperature-Humidity Index
TTGO T-Call	ESP32 Board with Integrated GSM (SIM800L)
USD	United States Dollar

Conflicts of Interest

The authors declare no conflicts of interest.

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Tossa, A. K., Aballo, S. I. A., Mamadou, S., Fokapu, O. (2025). Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context. Science Journal of Energy Engineering, 13(2), 71-86. https://doi.org/10.11648/j.sjee.20251302.14

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Tossa, A. K.; Aballo, S. I. A.; Mamadou, S.; Fokapu, O. Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context. Sci. J. Energy Eng. 2025, 13(2), 71-86. doi: 10.11648/j.sjee.20251302.14

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AMA Style

Tossa AK, Aballo SIA, Mamadou S, Fokapu O. Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context. Sci J Energy Eng. 2025;13(2):71-86. doi: 10.11648/j.sjee.20251302.14

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@article{10.11648/j.sjee.20251302.14,
  author = {Alain Kossoun Tossa and Said Ibrahim Adetayo Aballo and Souad Mamadou and Odette Fokapu},
  title = {Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context
},
  journal = {Science Journal of Energy Engineering},
  volume = {13},
  number = {2},
  pages = {71-86},
  doi = {10.11648/j.sjee.20251302.14},
  url = {https://doi.org/10.11648/j.sjee.20251302.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjee.20251302.14},
  abstract = {Availability and optimization of energy consumption are essential for the success of poultry activities. This is a strategic problem for food security in Benin and more broadly in West Africa. This article presents Tak-Avipack 1, an intelligent system designed to ensure availability at lower cost of energy while guaranteeing the main functionalities necessary for the adequate development of poultry: thermal regulation, lighting, hygiene and biosecurity etc. Based on an integrated IoT architecture, Tak-Avipack 1 incorporates environmental sensors (temperature, humidity, NH3, CO2, CO, PM2.5), a high-efficiency catalytic gas heater and dynamically controlled LED lighting. Its food is provided by three energy sources: photovoltaics, the conventional network (if available) and gas (which can be butane or biogas). These systems are optimally sized, and their intelligent hybridization guarantees continuous operation in rural areas. A local decision-making algorithm adjusts thermal parameters, air and lighting flows in real time, minimizing energy consumption. With the GSM / GPRS resilient connectivity and an offline mode with local storage, the system remains functional in the absence of a network. An economic assessment carried out on a model farm with 1,000 weighted hens shows a return on investment of less than six months, with an expected increase of 15% of egg production and a 20% reduction in mortality. Tak-Avipack 1 thus represents an appropriate, accessible and scalable solution to support the transition to tropicalized poultry cultivation.
},
 year = {2025}
}

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TY  - JOUR
T1  - Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context

AU  - Alain Kossoun Tossa
AU  - Said Ibrahim Adetayo Aballo
AU  - Souad Mamadou
AU  - Odette Fokapu
Y1  - 2025/06/23
PY  - 2025
N1  - https://doi.org/10.11648/j.sjee.20251302.14
DO  - 10.11648/j.sjee.20251302.14
T2  - Science Journal of Energy Engineering
JF  - Science Journal of Energy Engineering
JO  - Science Journal of Energy Engineering
SP  - 71
EP  - 86
PB  - Science Publishing Group
SN  - 2376-8126
UR  - https://doi.org/10.11648/j.sjee.20251302.14
AB  - Availability and optimization of energy consumption are essential for the success of poultry activities. This is a strategic problem for food security in Benin and more broadly in West Africa. This article presents Tak-Avipack 1, an intelligent system designed to ensure availability at lower cost of energy while guaranteeing the main functionalities necessary for the adequate development of poultry: thermal regulation, lighting, hygiene and biosecurity etc. Based on an integrated IoT architecture, Tak-Avipack 1 incorporates environmental sensors (temperature, humidity, NH3, CO2, CO, PM2.5), a high-efficiency catalytic gas heater and dynamically controlled LED lighting. Its food is provided by three energy sources: photovoltaics, the conventional network (if available) and gas (which can be butane or biogas). These systems are optimally sized, and their intelligent hybridization guarantees continuous operation in rural areas. A local decision-making algorithm adjusts thermal parameters, air and lighting flows in real time, minimizing energy consumption. With the GSM / GPRS resilient connectivity and an offline mode with local storage, the system remains functional in the absence of a network. An economic assessment carried out on a model farm with 1,000 weighted hens shows a return on investment of less than six months, with an expected increase of 15% of egg production and a 20% reduction in mortality. Tak-Avipack 1 thus represents an appropriate, accessible and scalable solution to support the transition to tropicalized poultry cultivation.

VL  - 13
IS  - 2
ER  -

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Author Information

Alain Kossoun Tossa

Energy and applied mechanics Laboratory, Abomey-Calavi Polytechnic School, Abomey-Calavi, Benin

Contact Email

http://orcid.org/0000-0003-0795-9460
Said Ibrahim Adetayo Aballo

R&D department, Takaz-Eng, Cotonou, Benin

http://orcid.org/0009-0008-2636-7763
Souad Mamadou

R&D department, Takaz-Eng, Cotonou, Benin
Odette Fokapu

Biomechanics and Bioengineering, University of Technology of Compiegne, Compiegne, France;Laboratory of Innovative Technologies, University of Picardie Jules Verne, Compiegne, France;Diasporeines Africa Association, Paris, France

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Tossa, A. K., Aballo, S. I. A., Mamadou, S., Fokapu, O. (2025). Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context. Science Journal of Energy Engineering, 13(2), 71-86. https://doi.org/10.11648/j.sjee.20251302.14

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ACS Style

Tossa, A. K.; Aballo, S. I. A.; Mamadou, S.; Fokapu, O. Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context. Sci. J. Energy Eng. 2025, 13(2), 71-86. doi: 10.11648/j.sjee.20251302.14

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AMA Style

Tossa AK, Aballo SIA, Mamadou S, Fokapu O. Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context. Sci J Energy Eng. 2025;13(2):71-86. doi: 10.11648/j.sjee.20251302.14

Copy | Download

@article{10.11648/j.sjee.20251302.14,
  author = {Alain Kossoun Tossa and Said Ibrahim Adetayo Aballo and Souad Mamadou and Odette Fokapu},
  title = {Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context
},
  journal = {Science Journal of Energy Engineering},
  volume = {13},
  number = {2},
  pages = {71-86},
  doi = {10.11648/j.sjee.20251302.14},
  url = {https://doi.org/10.11648/j.sjee.20251302.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjee.20251302.14},
  abstract = {Availability and optimization of energy consumption are essential for the success of poultry activities. This is a strategic problem for food security in Benin and more broadly in West Africa. This article presents Tak-Avipack 1, an intelligent system designed to ensure availability at lower cost of energy while guaranteeing the main functionalities necessary for the adequate development of poultry: thermal regulation, lighting, hygiene and biosecurity etc. Based on an integrated IoT architecture, Tak-Avipack 1 incorporates environmental sensors (temperature, humidity, NH3, CO2, CO, PM2.5), a high-efficiency catalytic gas heater and dynamically controlled LED lighting. Its food is provided by three energy sources: photovoltaics, the conventional network (if available) and gas (which can be butane or biogas). These systems are optimally sized, and their intelligent hybridization guarantees continuous operation in rural areas. A local decision-making algorithm adjusts thermal parameters, air and lighting flows in real time, minimizing energy consumption. With the GSM / GPRS resilient connectivity and an offline mode with local storage, the system remains functional in the absence of a network. An economic assessment carried out on a model farm with 1,000 weighted hens shows a return on investment of less than six months, with an expected increase of 15% of egg production and a 20% reduction in mortality. Tak-Avipack 1 thus represents an appropriate, accessible and scalable solution to support the transition to tropicalized poultry cultivation.
},
 year = {2025}
}

Copy | Download

TY  - JOUR
T1  - Development of a Smart Renewable Energy-Based System for the Automation of Microclimate Management in Poultry Farms in West Africa: Application of the Tak-Avipack1 Prototype to the Beninese Context

AU  - Alain Kossoun Tossa
AU  - Said Ibrahim Adetayo Aballo
AU  - Souad Mamadou
AU  - Odette Fokapu
Y1  - 2025/06/23
PY  - 2025
N1  - https://doi.org/10.11648/j.sjee.20251302.14
DO  - 10.11648/j.sjee.20251302.14
T2  - Science Journal of Energy Engineering
JF  - Science Journal of Energy Engineering
JO  - Science Journal of Energy Engineering
SP  - 71
EP  - 86
PB  - Science Publishing Group
SN  - 2376-8126
UR  - https://doi.org/10.11648/j.sjee.20251302.14
AB  - Availability and optimization of energy consumption are essential for the success of poultry activities. This is a strategic problem for food security in Benin and more broadly in West Africa. This article presents Tak-Avipack 1, an intelligent system designed to ensure availability at lower cost of energy while guaranteeing the main functionalities necessary for the adequate development of poultry: thermal regulation, lighting, hygiene and biosecurity etc. Based on an integrated IoT architecture, Tak-Avipack 1 incorporates environmental sensors (temperature, humidity, NH3, CO2, CO, PM2.5), a high-efficiency catalytic gas heater and dynamically controlled LED lighting. Its food is provided by three energy sources: photovoltaics, the conventional network (if available) and gas (which can be butane or biogas). These systems are optimally sized, and their intelligent hybridization guarantees continuous operation in rural areas. A local decision-making algorithm adjusts thermal parameters, air and lighting flows in real time, minimizing energy consumption. With the GSM / GPRS resilient connectivity and an offline mode with local storage, the system remains functional in the absence of a network. An economic assessment carried out on a model farm with 1,000 weighted hens shows a return on investment of less than six months, with an expected increase of 15% of egg production and a 20% reduction in mortality. Tak-Avipack 1 thus represents an appropriate, accessible and scalable solution to support the transition to tropicalized poultry cultivation.

VL  - 13
IS  - 2
ER  -

Copy | Download