Solar energyThe southern coastal area has the greatest economic potential for solar thermal, which can be used in greenhouses, fish farms, swimming pools and industrial heat processes.The solar sector went through a phase of remarkable growth in 2008, raising its contribution by 271.8% over the previous year and finishing the 12-month period with 264 GWh generated. The reason for this growth is the connection of 276.3 MWp to the grid during 2008. Grid-connected solar PV in 2009 totalled 430 MW.Wind energyThe south-east of Korea is a good location for offshore wind farms. Wind power is by far and away the most prominent sector as electricity production has been increasing an average of 69% per annum, generating 381 GWh. South Korea has over a dozen of wind farms, both on- and off-shore. Current installed capacity amounts to approximately 348 MW, with significant potential for the development of further off-shore sites.. The country’s ambitions for wind power are for it to be producing 2,250 MW by 2012. The testing phase for a proposed 2.5 GW off-shore wind farm will commence by 2013, with 20 5 MW turbines being installed, with an aim to reach full capacity by 2019.Tidal energySome parts of the sea around Korea are regarded as ideal spots for the tidal farms to create electricity, because of the huge differences in height between high and low tide, which causes fast tidewater speeds. Two Korean companies, POSCO and Korea South East Power Co., Ltd. have entered into a partnership for the development of tidal and wind technologies. Construction was completed in 2011 of the Lake Sihwa tidal power station, the world’s largest at 254 MW.BiomassElectricity production from biomass systems increased sharply over the past two years (up 71.4% between 2006 and 2007 and up 38.3% between 2007 and 2008) to generate 4 GWh, making biomass the 2nd most prolific renewable resource in the country after hydroelectricity. Development of the technology in the country is occurring rapidly, with 4,000 residential boilers capable of using biomass pellets installed as of 2010, and the country’s first biomass power cogeneration facility projected to come online in the second quarter of 2012, at Donghae. Imported biomass pellets from Canada and Indonesia make up the majority of supply currently.HydropowerHydroelectricity is the country’s top renewable source with 5,6 TWh produced in 2008 (1,2% o the total). The pumped storage share increased sharply in 2008 (44.8%) as a result of an increase of over 1 TWh produced by this type of power plant. It has been estimated that South Korea has a small-scale hydro potential of up to 1.5GW, and that 198MW could be generated by 2012. Installed capacity represents less than 5% of the domestic potential, indicating significant untapped resources. Five small hydroelectric plants are currently in the project pipeline, as part of the Four Rivers project.GeothermalGeothermal heat pumps are found in over 700 locations throughout the country, and are typically in the 300 to 100 kW size for a total of over 3,000 units. The geothermal resource of the country is insufficient for electricity generation, but current installed thermal capacity amounts to 229.3 MW.