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Devergy Expands Solar Power Possibilities in Africa

Digi International Digi International
January 22, 2015
Did you know that roughly 1.7 billion people are not connected to a power grid? In Sub-Sahara Africa, the number is around 500 million. For many, the infrastructure simply doesnt exist. The modern day conveniences we take for granted such as being able to read at night, cooking on the stove top and refrigeration can be a hassle, or close to impossible, with no access to a reliable source of electricity.
The challenges of installing a power grid in remote and undeveloped areas can be numerous, so how do we reimagine how to deliver reliable electricity and move past the traditional power grid system? Thankfully, Devergy is solving this tricky problem. Using solar power and wireless technology, Devergy has built a sustainable business thats helping villages in Tanzania and Ghana meet their energy needs.download
Who is Devergy?
Founded in 2010 by Fabio De Pascale, Gianluca Cescon and Daniel Ponz, Devergy is a social enterprise committed to providing an affordable and reliable source of energy to low-income people throughout Tanzania.
Their customers live in rural areas of the country where a power grid is nonexistent and residents do not have the money necessary to purchase a personal solar home system.
Residents in Tanzania typically spend between 6 and 25 USD per month on kerosene, phone charging, and dry-cell batteries for radios. After the installation of Devergys solar grids, residents spend as much as 20% less than what they were spending on kerosene for lighting and 50% less for phone charging. Not only does Devergy provide a clean, renewable and reliable source of energy, but its also substantially more affordable.
The service is based on village-sized energy micro-grids, which provide solar power to households and small businesses; it allows the users to connect lights and appliances such as radios, TVs and refrigerators. With the smart micro-grids, the usage of installed power is up to 70% more efficient than with equivalent solar home systems.
The key feature of the system is an energy meter that powers the household or business with a pre-paid pay-per-use approach, where customers top up their credit by using a mobile commerce platform, such as Vodacom M-Pesa. This is just like the system you would use to top-up a pre-paid mobile phone.
How it Works
Devergy uses Digi XBee technology for the communication network in its grids. Hundreds of nodes are connected with XBee--making the solar micro-grids smart, cost effective, and manageable. Devergy relies on XBee modules for its smart meters and is using Digis ConnectPort X4 for its Zigbee to GPRS gateways. Fabio, co-founder of Devergy says, "The plug and play, flexible nature of the Digi product was fundamental to get our services to the market faster."
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Devergys customers receive an unprecedented service thanks to a system that is designed to require no user maintenance and is remotely monitored for faults, so that the reliability and availability of the service is unmatched. Local representation of the company is ensured by the appointment of a village agent, selected based on recommendation by the village committee and trained by Devergy to perform technical support and sales. This ensures the customers always have a well-known and trusted counterpart to deal with.
Devergy has successfully connected more than 800 customers since 2012 to reliable, clean and safe electricity with a service sufficient to satisfy their needs for many years to come.  Currently, they are active in two regions and quickly growing their customer base. In addition to Tanzanaia, the Devergy grids are also licensed to third parties in Ghana, where they power 3 villages.
Visit Devergy.com to learn more about what they do!