Practical guides for homeowners thinking about solar: how big a system you need, what it costs per watt, how long panels last and how many years it takes to pay back. Start with our solar panel calculator, then check current solar panel cost and the payback period for your situation. Every figure is sourced and dated.
What an Enphase battery really costs in 2026: installed prices for the IQ Battery 5P and 10C, cost per kWh against Powerwall 3 and FranklinWH, what a quote should include, and when it pays back.
kW measures power and kWh measures energy. Here is the difference, the simple formula that links them, and what it means for your bill, solar, batteries and EV.
One Powerwall 3 costs about $13,000 to $16,500 installed in 2026. Here is what is in that price, what extra capacity costs, which rebates are left after the federal tax credit ended, and when the battery pays for itself.
Home solar needs little upkeep, but dirt, pollen, snow and a failing inverter can quietly cut output. Here is a simple schedule, safe cleaning steps and what maintenance costs.
The average US home uses about 865 kWh of electricity a month. Here is how that breaks down by day, state and appliance, and how to find your own number.
What solar panels really cost in 2026: price per watt, costs by system size and state, where the money goes, and the incentives left after the federal tax credit ended.
How many years until solar pays for itself? Here is how payback is calculated, what solar costs in 2026 now that the federal tax credit has ended, typical payback periods by state conditions, and a calculator for your own numbers.
Solar panels do not stop working when the warranty ends. Here is how fast they really lose output, what warranties promise, and which part of the system fails first.
Plug-in or “balcony” solar lets renters and homeowners plug a small solar kit into a wall outlet. Here is how it works, what it saves, the safety questions, and which US states have legalized it as of October 2026.
A solar battery stores your panels’ daytime power for the evening and keeps the lights on in an outage. Here is what one costs in 2026, how to size it, and when it is worth the money now that the federal tax credit has ended.