How Solar Works
A practical overview of rooftop solar for homeowners — generation, grid credits, and savings.
Solar panels & your home
Solar panels convert sunlight into electricity using photovoltaic (PV) cells. During the day, your system powers your home first. Any surplus can usually be exported to the grid under your local net metering or feed-in arrangement.
Net metering & export credits
Most markets credit excess daytime generation against your electricity bill. Exact rates and caps vary by country and utility — installers on Volts quote with local programmes in mind (for example NEM / net billing in the US, SEG in the UK, and FiT / export schemes in Australia and the EU).
Electricity rates matter
Higher retail rates and time-of-use peaks improve solar economics. Generating your own power during daylight hours cuts what you buy from the utility, especially if you run AC, EV charging, or heat pumps.
Typical costs & payback
Residential systems are usually sized to your bill and roof. Many homeowners see payback in roughly 5–10 years depending on incentives, rates, and system size — then decades of lower bills with a typical 25-year panel warranty.
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