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The electricity that your panels produce will be consumed by your house first. Anything that you produce in excess of what you consume will go back into the grid and generate a kwh credit for you to use when you are not generating enough (such as during the night).
Your system will come with a monitoring solution that allows you to see how much power is produced at any given time, and over several different time periods.
Some of the important factors to consider with modules are efficiency, quality of construction, warranty, and cost. It is important that the solar company you choose carries many different panel manufacturers so you can see the differences between brands and types.
Each roof is different in orientation and its shading profile. The generic answer is to look at the south facing locations first, east second, then west. But many factors can determine which areas on your roof will be best: trees, roof obstacles, geography of your house, etc.
Depending on the type of equipment, your solar can still produce a fair amount of energy on cloudy days, or even days with heavy inversion. N-type cells (Panasonic) do very well in low light condition because of the angle that light hits the cell and the photons are captured. SolarEdge inverters also do very well in low light conditions compared to Enphase micro inverters.
Several factors should go into choosing a solar installer.
- You should choose a solar company that installs their own projects. Some companies are only sales companies and sub out the installation work. Choose a company that controls the process from start to finish.
- Choose a company with reputable equipment and options. Some companies only offer one type of panel and inverter. Companies that offer several options are not biased to one, and can give you objective data and opinions on the best system for your house or business.
- Choose an experienced installer – choose a company who has installed for years and has done projects all over the state.
- Check the reviews – It is easy to see which companies focus on customer service and detailed work by looking at their reviews online.
- Cost – The cheapest is not always the best. But the company should also be within the industry range of cost.
- Local – Many companies come from other solar markets that become saturated, just looking for a quick buck. Choose a company with roots in the community who will be here if you ever need them.
The federal tax credit (ITC) is 30% of your qualifying solar cost. The state of Utah tax credit is 25% of your solar cost, up to $2,000. Tax credits must have a tax liability to offset. Please consult your tax advisor to see if you can take the solar tax credits.
Solaroo offers several financing options for your solar project – loans with promotional periods of zero interest, no payments, no money down – also with terms ranging from 7 – 25 years. In many cases, you can save from day 1 by switching to solar with the right financing.
Outside of washing them off every once in a while with the hose, not much should be required. You should keep the panels free from debris, dirt, and dust as much as possible. You should keep trees trimmed around your arrays to not block the path of the sun. Keeping an eye on production through your monitoring software should help make you aware of any possible concerns.