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Friday, September 22, 2017

Hybrid Renewable Energy System

Hybrid Renewable Energy System

To provide electricity in remote areas where grid connection is not feasible renewable energy is the best option. These can be by individual source or combination of resources like wind, solar, hydroelectric, biomass, ocean wave, geothermal and tides, etc. However, the ideal combination could be the use of wind and solar to generate uninterrupted power supply.

The dependency on alternate energy sources are also relevant in the context of depletion of fossil fuels, Ozone depletion, Carbon foot print, global warming, etc. incidentally renewable energy sources are most environmental friendly as well. Besides reduced recurring cost, the one, another advantage of alternate energy, is that it avoids the huge cost and accidents thereof of power transmission.
Hybrid Renewable Energy System (HRES) can be the combination of two or more sources

• Solar Photovoltaic (PV) /Wind/diesel generator
• PV/wind/fuel cell
• Wind/battery
• Biomass/wind/diesel generator
• PV/Wind/Biomass/fuel cell

Solar energy is converting Sunlight to electricity through the photovoltaic process; it is also possible to utilize the heat of the Sun to cook as well as generate power. The power generation or cooking using the Sun during the night would not be possible. The wind power comes as a rescue as most of the time the wind would be available. Another the advantage of wind power is that it can be connected directly to stationary units like a pump, chaff cutters, etc.

The hybrid power thus generated can be connected to the grid or stored in batteries.
Another application of this system is in hybrid vehicles which merge electric power and engine (diesel/Gas/ Petrol). The vehicle will run on electric power drawing power from the battery. When the battery is drained, the engine takes over.  When running on the engine, the battery will be charged.  When the brake is applied that power can be used to charge the battery.

The renewable energy sources are undergoing innovation all over the globe. The poor efficiency, especially in solar power generation, is a major area to be addressed more seriously. Provisions to withstand natural furies like storm or flood shall have to be given stress in designing alternate energy power generation. 

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