Should you install solar panels before installing a new solar system?

The time to contemplate any big near-term additions to your electrical needs is before you install solar because expanding an existing system later can be costly and problematic, says Los Gatos, CA, solar installer and energy podcaster Barry Cinnamon. You’ll likely need to replace the inverter, and the new panels won’t match the existing ones.

How much does a rooftop solar array cost?

Though it depends a lot on where you live, a typical rooftop solar array (20 to 24 panels to cover an average home’s electrical needs in full) runs about $18,000 after the current 26 percent federal tax credit. You can finance the upfront cost—most people do—and the choice you make will have a drastic impact on your payback. Here are the options.

Is solar power a good investment?

TOH Pro Tip: Solar power makes a lot of sense, and it’s come down so much in price that it’s now affordable for many more people. But like any tech, it needs to be designed and installed correctly to yield the best performance and return on investment.” -Ross Trethewey, TOH home technology expert.

Are solar leases a good idea?

Leases have a few downsides: The solar company gets the tax credit and other incentives, your monthly payments can increase over time, and your projected savings rely on the company’s assumption of future electricity rates, which may be buried in the fine print and, if overstated, could potentially make your solar more expensive than utility power.

What is the payback period for a solar roof?

The payback period depends on your latitude, the direction your roof faces, the amount of tree cover, the cost of electricity in your area, and your utility’s policies. For an instant estimate of your total cost, annual dollars saved, and payback period, plug in your address and average monthly electricity cost at Project Sunroof.

How much does a solar battery backup cost?

In general, a battery backup designed to power the whole house will double the cost of your solar system, Pearce says. The cost of a solar battery system sized for powering just essential circuits like the fridge, Wi-Fi, and key lights and outlets might net out at around $9,500, after incentives.