Can solar power be used at home?

To bridge that gap, an inverter converts DC into AC so your solar power is usable at home. Storage comes next. Batteries allow homeowners to store excess energy for use at night or during outages or simply when there is intermittent sunshine, and can be sized based on current and future consumption.

Why are rooftop solar panels more affordable?

For homeowners, these global cost trends translate into more affordable rooftop solar installations. As utility-scale solar prices fall, residential systems also benefit from cheaper panels, lower installation costs, and more competitive financing.

Does rooftop solar really work?

In 2024, rooftop solar was the fastest-growing source of electricity worldwide, according to data from the U.S. Energy Information Administration. Yet many homeowners still hesitate because of cost, myths and confusion about how the technology actually works.

How does solar power work?

At its core, solar power is physics, not magic. Photovoltaic panels are made from silicon cells that generate direct current electricity when sunlight excites electrons. With DC, energy flows in one direction. Homes, however, are wired for alternating current where the flow reverses many times per second to safely power appliances.

How long do solar panels last?

Since panels typically last 25 years or more, the next 19 years are essentially free electricity. Regardless of these positive cost trends, upfront solar costs can still feel steep. Especially since several factors such as roof orientation, shading, and expertise of installer can limit viability.

How much does solar cost a year?

If solar cuts $150 off your monthly bill, that’s $1,800 a year. Add another $200 in credits for power you export, and your annual savings is $2,000. Payback period is simply the system cost divided by annual savings. Using the numbers above: $12,000 ÷ $2,000 = 6 years. That means in six years your system has paid for itself.