ENVS 10400 Chapter Notes - Chapter 10: World Energy Council, Crop Residue, Energy Crop
4 Apr 2016
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Nonrenewables provide 87% of the world"s energy and results in the most human caused co2 emissions. Renewable energy - come from processes that replenish themselves or are continuously present. Concern for climate change renewable e doesn"t add to co2 emissions. 10. 2 major kinds of renewable energy: biomass conversion. Biomass - widely used wood in pre industrial times 91% and still in developing worlds. 10% of world e use: major types of biomass, fuelwood. E from crop must be more than e used to grow crop: biomass conversion technologies, direct combustion. Usa gets 6% of electricity from it: technology for obtaining hydropower. Most common: dam on a river to store water in a reservoir. Water gets released through a turbine, spinning it, activating a generator which produces electricity large plants on large reservoirs, small plants on small rivers. Microhydroelectric power systems in remote areas provide e for local needs: potential for additional hydropower.
