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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So letâs put some numbers to the question: Imagine that your house uses 48 kWh of electricity per day (about average). If you live in Arizona, where the average solar insolation per year is around 6 kWh/meters squared/day, youâll need 53 square meters (574 sq ft) of 15% efficient solar panels. If you spend the extra money for 21% efficient solar panels, then youâll only need 38 square meters (409 sq ft) of solar panels.