House Sun Number Solar Panels

One peak sun hour 1000 w m 2 of sunlight.

House sun number solar panels.

The typical homeowner will need 28 34 solar panels to cover 100 of their energy usage dependent on location and roof size. The sun number score developed through sunshot s successful incubator program instantly determines a home s suitability for solar by giving it a score from 1 100. You then express that in terms of the equivalent number of hours with 1000 w m 2. Figure out how many panels will fit in your.

This earth day zillow is highlighting a green initiative that helps inform homeowners and buyers about their own solar potential by putting a sun number on more than 84 million homes nationwide. Instead you need to add the total amount of solar irradiance received by the location. If a home has a high sun number score it doesn t necessarily mean that the homeowner must install solar panels only that the potential for energy saving exists. Then set up an appointment for a solar consultation with an expert who will visit your home to inspect its orientation solar panels facing south capture more energy roof angle and tree shading to see if your roof.

To get these numbers we used high and low panel production ratios to calculate how many solar panels are needed on average. The average solar panel is around 17 6 square feet and produces 265 watts under direct sunlight per day equaling out to 15 watts per square foot. To see if your house is a good candidate for solar try out a solar panel suitability checker such as google s project sunroof. Scores can be accessed by entering a valid address in a region where the analysis has been completed.

You will need a roof space of about 194 sq ft for a 3kw system. However when calculating the total amount of peak sun hours received at any location you don t just consider hours with 1000 w m 2 of solar radiation. Solar radiation sun number calculates the amount of solar radiation for every square meter of your roof. An incubator awardee sun number gives a numerical score which represents the solar suitability of a building s rooftop on a scale from 1 to 100 with 100 being the ideal rooftop for solar.

The scores are an easy and intuitive way for consumers to understand their solar potential the higher the sun number score the more ideal a home is for solar. The benefits of solar panels go beyond saving money on electricity bills though. A 3kw solar system which consists of 12 panels can produce an average of 4 200 kwh per year. Solar panels also increase the value of your home especially the resale value.

Sun number measures your roof calculating the pitch orientation and size of each roof plane.