How many homes would one acre of solar panels power?
In regard to how much home electricity can be provided by one acre of solar panels, the question needs consideration of a few important factors: conversion efficiency of the solar panels, power each panel provides, and the number of panels that can be installed per acre.
According to, Panasonic’s latest HIT photovoltaic modules boast a conversion efficiency of 23.8%, meaning that every square meter of solar panels converts 23.8% of the sun’s rays into electrical energy under optimum conditions.
The watt solar panel is said to be able to output 400 watts of electricity under standard test conditions. Using these 400-watt solar panels, a square meter of solar panels will be able to provide 400 watts of electricity.
Now, how many square meters does an acre equal? One acre equals 4046.86 square meters.
This, therefore, means the total amount of power that one acre of solar paneling can avail is:
4046.86 square meters x 400 watts per square meter = 1618744 watts
Assume that the average annual consumption of a household is 5,000 kWh per year. This can be assumed to be a rough estimate, as actual values may vary depending on the region and electricity habit of the household. Based on this estimate, with one acre of solar panels, the number of households supported is:
1618744 watts / 5000 watts/kWh = 323.75 homes
Thus, approximately 324 homes can be powered up using one acre of solar panels.
This is based on the efficiency in conversion in ideal conditions and output power in standard test conditions. In real situations, the actual power output of solar panels will vary depending on meteorological, seasonal, and geographical parameters, among others. Furthermore, installation and maintenance of solar panels also require some amount of power, so the actual number of households supported may be slightly lower than those estimated here.