Warm and Safe Showering with Sun Collectors

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    Collector and tank installed on a roof top in Cochabamba.

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    Show room of one of the local producers. A SWH System in general consists of a collector, wherein a circulating medium is heated in the sun, and a tank to store heated water.

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    Production of a flat plate collector for the Solar Water Heating System in Cochabamba.

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    Paloma Sarria from myclimate gets instructions on the production of solar collectors in Cochabamba.

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    The families benefit from lower energy costs in the midterm and from a more comfortable and saver shower system.

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    Today, most Bolivian households use unsafe continuous-flow water heaters driven with mainly fossil fuel generated electricity.

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    Miguel Fernandez is CEO of the non-profit organisation Energetica and one of the leading experts for renewable energies in Bolivia.

This project saves greenhouse gas emissions by replacing mainly fossil fuel generated electricity with the power of the sun. Households will benefit from lower energy costs and from a saver shower system.

Today, most Bolivian households use unsafe continuous-flow water heaters, so called geysers, with electricity as energy source. Solar Water Heating (SWH) Systems supply the users with hot water, heated through renewable solar energy. With its high average solar radiation, Bolivia doubles Swiss average values and has best conditions for solar water heating.

In 2013 3500 m2 of solar collectors have been installed.

A SWH System in general consists of a collector, wherein a circulating medium is heated in the sun, and a tank to store heated water. In passive systems as applied in this project, no external energy is needed, since the systems use thermic convection for the water circulation. This system, also called thermo-siphon, can be built locally to lowest prices and is often used in developing countries.

This project, developed by the non-profit organisation Energetica, mainly focuses on the domestic use in urban and semi-urban regions, where beneficiaries have access to tab water. The project promotes the diffusion of up to 10’000 SWH Systems. Only SWH units produced or at least mounted in Bolivia are eligible for the project. All SWH Systems under this project have to be certified under a national SWH standard of IBNORCA (Bolivian Standard Organisation), which was promoted by Energetica together with the local SWH industry. 

Here in Cochabamba, but also in other Bolivian regions,  we have an extreme high radiation rate due to the altitude. Our solar panels can work with maximum capacity. We should further capitalize on our geographical benefit!
Miguel Fernandez, engineer and CEO of Energetica

In total around 50,000 beneficiaries – an average Bolivian household has five persons – shall benefit from the project with a total installed collector area of around 30,000 square metres. The families benefit from lower energy costs in the midterm and from a more comfortable and saver shower system. Local producers shall profit from increased sales volumes leading to higher employment. Undesirable power peaks on the national electrical grid shall be reduced. The project improves the access to clean and affordable energy and contributes to technological self-reliance. 

Beneficiaries will cover the purchase cost of the SWH System by themself. Energetica supports the buyers in accessing fair credits at local financial institutions if needed. Thanks to the carbon money from myclimate, Energeticas’ programme costs for distribution, promotion, capacity building to local producers, monitoring and up scaling of first pilot activities can be covered. 

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