Summerfield is a town in Guilford County, North Carolina, United States. The population was 7,018 at the 2000 census. The official town limits of Summerfield are entirely located within Guilford County. The town is largely regarded as a suburb of Greensboro and as development has grown, the town has slowly transformed from a rural farming area into a bedroom community. Summerfield is located at 36Â°11â²57â³N 79Â°53â²9â³W / 36.19917Â°N 79.88583Â°W / 36.19917; -79.88583 (36.199123, -79.885866).
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In the US, photovoltaic (PV) panels will see an average of 4â5 hours per day of full sun, so the effective capacity of solar power generation is 4.5/24, or about 20%. In 2011, statistics showed that US installed solar power, PV and thermal, totaled 4.9 GW, which produced 7454 GWh of energy.rice per watt history for crystalline silicon photovoltaic cells since 1977. Price per watt, or $/W is a common way to compare the capital costs of various forms of electricity generation. It refers to the number of dollars one would have to spend to buy a machine capable of producing one watt of electricity.