Published April 17, 2026 · Updated June 22, 2026 · 6 min read
The short answer
Fossil fuels (coal, oil, gas) still supply most grid power — cheap to build but price-volatile and polluting. Nuclear is low-carbon and steady but centralized and slow to build. Solar is the only one you can put on your own roof: zero-emission, no fuel cost, and — paired with a battery — it gives you control over your bill and backup power the other two can't.
By Vinnie Curcie, Founder & CEO
Three ways to make the same electricity
Most of us just flip a switch and expect the lights to come on. Fossil fuels, nuclear, and solar are simply three different ways to make that power — and the differences affect both the planet and your monthly budget. Here's the plain-English comparison.
Fossil fuels: the traditional way
For over a century the world has burned coal, oil, and natural gas to make electricity — still the majority of grid power today. The process: burn fuel to make heat, use the heat to make steam, spin a turbine, and send the power down miles of wire to your home. It's an established, built-out system, but it emits greenhouse gases and air pollution, and fuel prices swing with global markets — which is a big reason your utility rates keep rising.
Nuclear: steady and low-carbon, but centralized
Nuclear plants split atoms to make heat, then make steam and spin a turbine just like a fossil plant — but with almost no carbon emissions and steady, around-the-clock output. The trade-offs are scale and control: plants take many years and billions of dollars to build, produce long-lived waste, and are entirely centralized. It's a grid-level solution, not something that lowers your specific bill or gives you backup power.
Solar: the one you can actually own
Solar is different in one decisive way: you can put it on your own roof. Photovoltaic panels convert sunlight straight into electricity — no fuel, no combustion, no emissions. The classic knock on solar is that it only works when the sun is up, but a home battery solves that by storing daytime power for the evening. Under California's NEM 3.0 rules, that solar-plus-battery combination is what turns sunshine into real control over your bill.
What it means for your home
You can't build a power plant or drill a gas well — but you can install solar and a battery and effectively become your own small utility. Fossil and nuclear power will keep running the wider grid; solar is the only option that lets you lock in your own rate, cut your emissions directly, and keep the lights on during an outage. See what that looks like for your home with a free estimate.
FAQ
For your home, it's the only one you can own and control. Fossil and nuclear are grid-scale sources you buy power from; rooftop solar lets you generate your own zero-emission electricity, lock in your rate, and — with a battery — keep power during outages. At the grid level, all three play a role.
Incentives and rates change. This page is kept current — but always confirm specifics for your home.
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