Reducing Carbon Dioxide Emissions from Electricity Sector Using Smart Electric Grid Applications

Table 2

Comparison of different renewable power plants (2009).

	Hydroelectric	Photovoltaic	Solar-thermal	Wind farms
Electricity generation (TWhr)	3,288	12	1	219
% of total generation	16.2%	0.06%	0.005%	1.1%
Limitations	Implemented only at rivers or water falls	Low output power, depends on sun shining	Sun trackers require complex controllers	Wind speed must be >20 km/hr, noisy