Solar Panel Energy Per M2

Kilowatt hours per square meter.

Solar panel energy per m2.

How much energy does a solar panel produce. Tilted south at latitude. A 4 kw solar panel system on an average sized house in yorkshire can produce around 2 850 kwh of electricity in a year in ideal conditions. Domestic solar panel systems typically have a capacity of between 1 kw and 4 kw.

Sunpower solar panels are the most efficient you can buy. Therefore if the solar panel output is 250 watts that single panel might cost you 187 50. Modern solar panels are around 15 efficient so that works out to approximately 150 watts per square meter or 15 watts per square foot. For instance in norway the average is 200 kwh m2 per year while in saudi arabia it is 2 600 kwh m2 y.

For the sake of example if you are getting 5 hours of direct sunlight per day in a sunny state like california you can calculate your solar panel output this way. The earth at sea level receives about 1 000 watts. The standard solar panel has an input rate of around 1000 watts per square meter and the majority of solar panels available have around 15 20. The panel is facing due south and tilted at the same angle as the latitude.

The standard solar panel has an input rate of around 1000 watts per square meter however therefore if your solar panel was 1 square meter in size then it would likely only solar insolation maps from the national renewable energy labs nrel. 1 kw m 2 x 24 h day 24 kwh m 2 day 24kwh m 2 day 365days year 8760 kwh m 2 year. Thus the output for each solar panel in your array would. 5 hours x 290 watts an example wattage of a premium solar panel 1 450 watts hours or roughly 1 5 kilowatt hours kwh.

The relation to the si unit is thus. Most residential solar panels on today s market are rated to produce between 250 and 400 watts each per hour. 1 our maxeon solar cell technology combines a strong copper backing with ultra pure silicon and a light trapping glass surface that ultimately makes our panels 30 percent more efficient at generating energy than conventional panels. If the map says 9 kwh m2 then you are getting about 9 full hours of sunlight on the panel.

However if a homeowner is trying to buy one or two panels on their own for a small diy project they will likely pay closer to 1 per watt. Therefore if your solar panel was 1 square meter in size then it would likely only produce around 150 200w in good sunlight.