Solar Panel Size Estimator

This is a very general system size estimation.

Solar panel size estimator. Solar panels for households typically come in the standard dimensions of 1 70m x 1 00m that s around 1 7m2 for every panel installed however the wattage output w of the panels will likely vary between 250w and 360w for a more efficient module. We examine the size of your roof to see how many solar panels actually fit on it. A solar savings estimate will be misleading if it assumes a solar system that will not even fit on your home. The average cost to install solar panels is from 10 626 to 26 460 after tax credit for a 6kw to 12kw system to power an entire house.

Most solar panels last for 50 years have a 25 year warranty and start generating a return on investment after 8. We now consider it the most sophisticated solar panel savings calculator available to homeowners for an instant assessment of their savings with solar. For the most accurate and personalized off grid system size calculation call our solar experts at 1 800 472 1142. A 5kw solar system may produce enough energy to power your home but you may not have enough roof space for a system of that size.

In the example above you would need 24 solar panels to account for 80 of your average consumption 29 6 kwh daily usage divided by 1 24 kwh per panel. The average solar panel payback period is 7 to 12 years and solar energy saves 600 to 2 000 per year on electricity costs. The typical homeowner will need 28 34 solar panels to cover 100 of their energy usage dependent on location and roof size. It allows homeowners small building owners installers and manufacturers to easily develop estimates of the performance of potential pv installations.

Other factors such as peak load shade location available panel space and seasonal use need to be taken into account. This means that the solar estimate calculator only requires you to know the name of your utility and the amount of your average power. Determine how many solar panels you ll need. Our estimator shows how many solar panels your home needs and shows them on your roof.

Nrel s pvwatts calculator estimates the energy production and cost of energy of grid connected photovoltaic pv energy systems throughout the world. One solar panel produces about 1 24 kwh per day. Money saving incentives available solar incentives such as the federal solar tax credit and local utility based incentives are built into your estimate to reveal how much you can save. The advantage of the solar estimate calculator is that it uses the same pv watts solar irradiation and production data however it is linked to the pricing tables of each utility as well as live pricing data provided by 200 solar installers throughout the us.

Solar panel cost by state.