PHOTOVOLTAICS I RURAL
Monte Trigans were surprisingly well prepared to accept the basic concept introduced to them and in very few days they started to efficiently manage their energy allowance
In this case, the project involved mainly three companies: Trama TecnoAmbiental (TTA), ATERSA and Studer Innotec. The design and implementation were managed by TTA, on behalf of the developers. Founded in 1986, TTA is an international consulting and engineering firm working in the field of renewable energies, environmental projects and technology development in many developing countries.
The A-130P modules, one of the mid-power range principally used for off-grid project, were supplied by ATERSA. Each of the 214 modules installed contains 36 polycrystalline cells. ATERSA
also designed a special pergola to aid the installation of these modules in the local school and supplied the batteries, regulators, converters and all the structures required for installation of the system.
Studer Innotec was contacted by TTA at an early stage of the project as the
Configuration and testing of the inverters
two companies had already successfully collaborated on other rural electrification projects. With 25 years of experience from independent energy solutions, Studer Innotec provide TTA with support for developing the concept of Monte Trigo new electrical grid.
Due to the planned design, concept and size of the micro-grid, the Xtender inverter-charger, XTH 8000-48, was chosen to supply a flexible management of the energy production and consumption. This system made up by two partially independent micro-grids with separate solar panels and battery banks. However, both grids are able to share excess energy with the other, thus ensuring an optimal use of the produced solar energy. The flexibility of the Xtender inverter-chargers from Studer Innotec, enables client-specific system configurations.
User charging her tariff (Photo:TTA)
Project Outcome From the first days of operation, the local authorities, but most of all, the Monte Trigo population demonstrate a great satisfaction for the new 24-hour electricity service. The village’s habits started to easily adapt to this new quality of life and the changes it brought.
Major changes are already changing the live of this community: one user already has bought his first refrigerator (and it is a A+ energy rating!) and local workers brought in a welding machine from the nearby village to fix a structure with a default. It was the first time they could use something like this in the village.
It is expected that with the two ice machines, capable of up to 500 kg/day production using peak of the day, surplus generation will improve the commercial activity on which the village sustains its economy.
Training session for final users (Photo: TTA) 18
www.solar-international.net I Issue II 2012
© 2012 Angel Business Communications. Permission required.
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