Aprotec

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APROTEC is a company, which develops technologies and systems for the use of renewable energy. They focus on the efficient use of energy and respect for the environment of technologies in social development projects. They were founded in 1990 and are based in Columbia.

Aprotec deals with several aspects in the field of renewable energy technologies, from the promotion and commercialisation to the development and production of these. APROTEC performs feasibility studies, field analysis and evaluation of available natural resources and their possible uses, in particular in the area of supplying electricity to rural, isolated communities. It designs, sells and installs complete systems for alternative energy. They also work as consultants to other NGOs, public and private organisations for the adaptation of technologies in the field of renewable energy.

The technologies they are selling now include:

Photovoltaic solar power

Photovoltaic cells directly convert sunlight into electricity. There are two methods of implementation. In an ‘isolated’ system, all the energy from the solar panels is collected in batteries. This can then be converted into an AC current, using a transformer. This system Solar energy can also be used as an ‘interconnected network’ where the panels are connected directly to the AC local power grid.

Thermal solar Power

Solar Heaters: These work by heating water in a tank. There are two systems for this, the thermosyphon method and the gravity system. They also developed a system to directly use solar energy for maintaining the temperature of outdoor swimming pools. It primarily uses the existing pump used for purifying the water to circulate the water and a thermostat.

Wind Power

Aprotec also sells wind generators, which convert wind energy into electricity. They have also developed a system, which uses wind energy to pump water from the ground.

Further they offer specialised equipment for measuring the wind potential of areas. These are leaning towers with a height of 30-60m, with sensors to measure the wind speed, wind direction, temperature, humidity and pressure at different heights. This information is then stored digitally and transmitted to collection centres for analysis.

Hydropower

PICO hydropower: Aprotec designed a system that uses hydropower from small water sources and converts it to direct current electricity. The water is filtered, cleaned and transported to through PVC pipes to turbines. The electric current produced here is then transported to a charging centre, where people can recharge batteries.

Microhydropower systems are ones, which use water as an energy resource in a sustainable manner, without damaging the environment. For example, they don’t require dams and so don’t cause flooding, unlike many hydropower systems.