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VITALITE Zambia was established 2014 by Differ and local partners in Zambia. It will sell appropriate, affordable and acceptable household energy products to low-income customers while giving the best possible service. Initially, VITALITE Zambia will distribute and sell Prime cookstoves, as well as wood fuel sourced from existing sources of sustainably harvested biomass. The main target of the new company is to sell clean cookstoves at prices affordable for peri-urban and urban poor without subsidies, in combination with biomass fuel sold at prices below those of charcoal. Using the highly fuel-efficient Prime stove means customers need much less biomass than in the current charcoal usage status quo. The new company will also offer consumer finance solutions such as installment payments. The combination of affordable and fuel-efficient stoves, affordable fuel and attractive consumer finance are set to give a very short payback time for the customer.

Company web-site: 

Bilderesultat for bos ag

BOS AG aims at becoming the leading company in decentralised energy supply with a focus on Li-Pb (lithium-lead) hybrid charging technology that supports intelligent load management. The key markets are located in rural and semi-urban areas of the world with insufficient access to modern energy services, as well as market segments in industrialized countries that require decentralized power supply (e.g. street infrastructure, offshore, mobile entities, holiday homes and other remote locations). Storage costs per kWh with BOS' proprietary hybrid battery management systems are up to eight times cheaper than with other storage technologies. Combined with intelligent load management, the energy service for the customer is more than ten times more attractive.

Company web-site:


Prime Cookstoves

Established in 2013, Prime Cookstoves is rapidly expanding its sales of highly efficient, ultra-clean biomass cookstoves to distributors in Asia and Africa. Our stoves offer an unbeatable cost/performance ratio having achieved world-class test results whilst being sold at affordable prices.
  • We develop - energy efficient technology that works
  • We offer - attractive and affordable cookstoves
  • We serve - by doing our utmost for our distributors and their customers

Company web-site:

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Brighterlite (BL) will make the transition to solar power appealing, by combining
- Cutting edge technology
- Resourceful and motivated people
- Early-stage investments to develop long-term partnerships

Brighterlite’s activities will primarily focus on underserved markets and rapidly growing economies in Africa and Asia. They provide the power of solar home systems, enabling everyone to improve their lives, build societies and secure a better future for all. BL brings vital infrastructure, new services and products that stimulate progress, change and improvement. They engage the communities by bringing business, information and learning closer to home.

Company web-site:

Bilderesultat for fosera

High quality Pico-Solar-Home-Systems for light generation, phone charging, powering of radios and TVs are of main interest to Fosera. These systems are typically used in rural areas to give independent access to modern energy. Special features of the products consist of Li-Battery technology, ultra-efficient LEDs and the modular system design, which allows the system to grow with the demand of the user. Fosera was founded in 2011, its headoffice beeing located near Ulm, Germany, while subsidiaries have opened all around the world.

Company web-site:

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COMMLIGHT’s products combine the latest development in efficient Lithium Iron Phosphate batteries with a proprietary algorithm for solar charging and state-of-the-art LED technology. Where outdoor lighting is connected to unreliable electric grids or beyond the grid, solar powered lighting is the solution. Applications are typically streets & walkways, social gathering points & market places, perimeter & security lighting, as well as properties, paring lots and bus stops. The COMMLIGHT products have performed tests worldwide and the solution is engineered to live on its own for many years with little or no maintenance needed.
The COMMLIGHT we know that solar energy is powerful enough, that combined with the right technology, it can light up the world also at night.

Company web-site:

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Ditana Energy Solutions

Ditana Energy Solutions wholesales affordable and fuel-efficient Prime cookstoves in North Sumatra and Central Java, Indonesia. By utilizing a network of agents such as women cooperatives, farmers groups and individuals, Ditana Energy Solutions has sold more than 3,000 Prime cookstoves since 2014. Ditana Energy Solutions is a also a market aggregator under the Clean Stove Initiative Indonesia by the World Bank. 

Company web-site: 

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Partnership with Song Anh Energy Engineering (SAEE) 

Differ has a close partnership with Song Anh Energy Engineering (SAEE) in Vietnam. SAEE is located in Saigon and provides energy saving solutions within HVAC and lighting: including chiller & cooling tower replacement, hot water heat pump, UV light for AHU and water.  

SAEE was established in 2010 and is owned and run by Mr Tran Sy Anh, a well-reputated engineer that has worked within this field for nearly 20 years. The company has 7 employees, nicluding engineers, technicians and sales people.

The energy saving potential is promising for building owners as currently installed chillers are inefficient and constitute at least 50% of the electricity bill. We aim at taking our chiller business to the next level and have found the best competence and partner in Vietnam to do so. SAEE’s core technical insight in the cooling business in Vietnam as well as the system engineering approach to the cooling challenges, makes SAEE an excellent partner for Differ to reach our ambition of implementing many small-scale projects that reduce GHG emissions. 


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