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| SOLAR |
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| SOLAR POTENTIAL |
| Sri Lanka is situated close to the equator, therefore receives an abundant supply solar radiation year around. Solar radiation over the island does not show a marked seasonal variation, though significant spatial differentiation could be observed between the lowlands and mountain regions. As estimated in the solar resource map developed by the National Renewable Energy Laboratory (NREL) of the USA, over most parts of the flat dry zone, which accounts for two-thirds of the land area, solar radiation varies from 4.0 – 4.5 kWh/m2/day. Solar radiation levels remain as low as 2.0 – 3.5 kWh/m2/day over the high plains of Nuwara Eliya due to the significant cloud cover over most parts of the day. Thus, a substantial potential exists in the dry zone of Sri Lanka for harnessing solar energy. |
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