Solar Guides & Resources

Free, accurate solar guides to help you plan, size, and understand your solar system — written in plain English, no technical jargon required.

How many solar panels does a 2,000 sq ft house really need? Explore solar system sizes, 400W vs. 450W panel counts, roof space requirements, and installation costs with practical U.S. examples.
Will solar panels eliminate your electric bill or will you still pay every month? Discover how solar credits, net metering, and utility charges work, with a practical before-and-after bill comparison to help estimate your savings.
Discover standard solar panel dimensions in inches, feet, and millimeters. Compare residential and commercial panel sizes, actual manufacturer specifications, panel weight, wattage, and roof space with practical examples for homeowners.
Discover how LiFePO4 batteries for solar energy storage work, their advantages and disadvantages, lifespan, charging requirements, and costs. Learn how to compare battery capacities, choose between 12V, 24V, and 48V systems, and select the right lithium iron phosphate battery for your home solar setup.
Wondering how long solar batteries last? Explore the lifespan of lithium-ion and lead-acid solar batteries, what affects battery life, typical warranty terms, replacement signs, and practical ways to make your solar storage system last longer.
How much electricity can one solar panel generate? Explore daily, monthly, and yearly energy output for 300W to 600W solar panels. Learn how peak sun hours, panel wattage, weather, and system losses affect production, with simple calculations and practical examples to help you estimate solar energy generation at home.
Wondering how many solar panels you need to power your house? Learn how to calculate solar panel requirements using monthly electricity consumption, peak sun hours, and panel wattage. Explore practical home sizing examples, roof space considerations, and tips for choosing the right solar setup.
Discover everything about a 3kW solar system in 2026, including installation costs, daily electricity output, solar panel requirements, and appliances it can power. Explore battery and inverter sizing, energy savings, and practical tips to choose the right solar setup for your home.
Planning a 5kW solar system for your home? Explore 2026 US installation costs, the number of solar panels needed, daily and monthly electricity production, battery options, and potential savings.
Solar panel repair in 2026: Discover common solar panel problems, estimated repair costs, warranty coverage, and 5 smart tips to help you decide whether to repair or replace your system.
Learn how solar roofing can improve home efficiency, reduce electricity costs, and add long-term value. This guide explains key benefits, planning factors, and what to expect before installation.
How long do solar panels last on a roof? Discover their 25–35 year lifespan, degradation rates, roof replacement advice, warranties, and 5 smart maintenance tips.