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Bay Islands, Honduras

Solar Energy for Honduras

Reliable power, functioning energy infrastructure and independence from diesel generators. This is what many Hondurans want and need to keep their businesses, institutions, and homes running. With our solar storage systems, we provide a solution that meets their needs. Together with our local partner Innovative Business Solutions (IBS) and as a part of the dena Renewable Energy Solutions Programme, we have chosen five pilot locations in the country to demonstrate our technology. Three hotels and two municipalities now run with a BOS solar storage system. The results: Lower electricity bills, uninterrupted power supply and cleaner air.

Five Locations. One Project

Solar systems with photovoltaic panels and a lithium storage system have been installed in all locations. This ensures energy supply at night and by unfavourable weather conditions. Existing energy sources like the power grid or diesel generators will be used as an optional backup. Local experts have been trained to install and maintain the systems.



The Beach House is a boutique hotel on the island of Roatán, located in the beautiful Halfmoon Bay at West End. The owners Karyn and Chuck have decided to install a BOS solar storage system in order to cover priority loads during frequent power cuts. This way, they don’t have to rely on their diesel generator to ensure the basic energy needs for the hotel.


The End of the World Resort is located on one of the most remote beaches on the far-out island of Guanaja. Getting there takes time and powering the generator 24/7 requires a lot of  effort to owner Brian Rowland. Solar power now allows him to shorten the necessary time of generator use. He is already saving up for his second system.


The remote Mango Creek Lodge on Roatán runs on generator power and renewable energies. The lodge already had a solar system but needed more storage capacity. We thus upgraded their existing system and installed an HS business 10.



The municipality of Santa Fé de Colón has various air conditioners and a very high electricity bill. With the support of the NGO Ayuda en Acción, they can now afford a solar system. Instead of paying upfront, they pay it off with part of the savings they generate using less grid power. This means reliable power and savings right from the start.


The municipality of Juan Francisco Bulnes in the department of Gracias a Dios couldn’t use its air conditioners, because their generator capacity was too low. Adding an HS business 10 allows them to work in cooler air and to offer special services on the weekends. They not only save money but generate additional income to pay off their system bit by bit.


Total PV installed | 44 kWp      

Total battery storage   | 51,2 kWh     

Total CO2 saving per year | 32,5 t

1. Photovoltaic panels which power the building and charge the batteries of the BOS system.

2. BOS System powers the building during evening hours.

3. Constant use of loads is possible, independently from the weather or the time of night or day.

4. The grid, a diesel generator or lead acid batteries can be used for additional energy back-up.

Monitoring Data


Project Partners

The dena RES Project Honduras is part of the worldwide dena Renewable Energy Solutions Programme coordinated by the Deutsche Energie-Agentur (dena) – the German Energy Agency – and supported by the German Federal Ministry for Economic Affairs and Energy (BMWi) within the German Energy Solutions Initiative.

dena is the centre of expertise for energy efficiency, renewable energy sources and intelligent energy systems. As Agency for Applied Energy Transition we help achieve energy and climate policy objectives by developing solutions and putting them into practice, both nationally and internationally. In order to do this, we bring partners from politics and business together, across sectors. dena’s shareholders are the Federal Republic of Germany and the KfW Group.

The dena RES Programme was developed by the Deutsche Energie-Agentur (dena) – the German Energy Agency. This programme, supported by the Federal Ministry for Economic Affairs and Energy within the German Energy Solutions Initiative, helps German renewable energy companies enter new markets. Within the framework of the programme, reference and demonstration projects are installed in cooperation with prestigious institutions. The installation is accompanied by comprehensive PR, marketing and training programmes. These projects showcase high-quality German renewable energy technology and help participating companies gain a foothold in new markets.
The transfer of energy expertise, the promotion of foreign trade and the facilitation of international development cooperation are part of the German Energy Solutions Initiative, which is coordinated and financed by the German Federal Ministry for Economic Affairs and Energy. The initiative offers networking and business opportunities in Germany and abroad, it showcases reference projects and facilitates know-how exchange.

IBS is a company that promotes the development of energy efficiency projects, renewable energy and eco-friendly solutions for water treatment through consultancies and the implementation of solutions that generate benefits for their clients and help to protect the environment.

Ayuda en Acción is a Spanish NGDO with a 25-year presence in Honduras accompanying sustainable development processes in coherence with the 2030 agenda. One of its priorities is mitigation and adaptation to climate change, which boosts the use of renewable energies through inclusive processes in coordination with guarantors of law, private companies and otheractors.

What our customers say

“Solar energy contributes to reducing gender inequality and poverty gaps by becoming a new opportunity for women, youth, children to access education and other fundamental services for the exercise of rights.“

Roberto Bussi, Country Manager Ayuda en Acción Honduras

„Our venture into the solar power project was one of the best business decisions we have made. Safe clean and reliable power. On Guanaja The End of the World Resort has non interrupted power 24 hrs per day, a feat that no other hotel or resort on Guanaja has.“

Brian Rowland, Owner of End of the World Resort

In partnership with:

10 kWh total usable battery capacity

100% Lithium

44  kWp of solar PV
51,2 kWh lithium capacity
Diesel genset for backup

1 System per hotel and town hall
Smart Energy Storage Systems
HS business 10

Making the world and people’s lives a bit better is what drives us and what we do every day with our projects. Get to know many more of our projects in countries all over the world with different climates, cultures and people.

Sarvantara Village

INDIA | Together with the German Energy Agency (dena) and the German Federal Ministry for Economic Affairs and Energy (BMWi), a renewable energy solution project was initiated in 2017 in India in order to electrify a village with limited access to the existing grid.
The selected village in Uttar Pradesh has approximately 100 households. Thanks to the intelligent DC mini grid and renewable electricity produced using photovoltaic modules, the households’ basic electrification needs could be covered and the village’s water supply improved with solar pump systems. At the same time, investment costs stayed low, as highly efficient DC loads (such as LED lamps and low power consumption fans) require smaller solar systems.
With the support of our local partner Oorja to operate the grid service, training and maintenance work are guaranteed. The entire system is designed to deliver affordable, reliable and sustainable electricity for ten years.

This project is part of the worldwide dena Renewable Energy Solutions Programme coordinated by Deutsche Energie-Agentur (dena) – the German Energy Agency – and co-financed by the German Federal Ministry for Economic Affairs and Energy (BMWi) within the German Energy Solutions Initiative.

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Sailboat Windzang

The passionate sailor Peter Reinmann extended his lead acid energy storage of his 9.30 meter long sailing catamaran with two BOS LiFePO4 Lithium modules. Peter is thus able to operate all the on-board electronics such as navigation, radio, light, refrigerator and gas heating. Because there was no room under the bench seat for a larger supply battery, a LE300 hybrid system was the perfect solution without loosing too much space. Now he is able to enjoy longer trips on the water without returning for recharge. A freedom that he no longer wants to miss.

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Sabon Gari Market

Sabon Gari market has been often in the headlines because of big fires, that destroyed large parts of the market. The root cause was the usage of many diesel generators. The Nigerian government and various companies have jointly come up with a solution. Equipped with the BOS Systems all 12,000 shops receive green, stable and affordable power for lamps, fans, television, computer and mobile phones. More markets have followed.

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Refugee tents with power

Uganda is the third-largest refugee-hosting country in Africa. Basic needs such as water, food, and electricity are hard to tackle in these camps. 70% of the refugees depend on organizations like the World Food Programme (WFP). To support the WFP, we equipped tents from Hallgruppen with our turnkey BOS solar storage solution. For the installation, we partnered up with the local electricity partner Aptech. Now WFP can store food and supplies safely and have access to reliable and clean energy. The remote monitoring system helps to control the energy and system performance from anywhere in the world. Therefore Aptrech can monitor the system from everywhere, which makes servicing easy and efficient.

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