Your complete guide to solar DIY projects

Step-by-step installation guides, real-time equipment price tracking, and a solar sizing calculator built for homeowners and off-grid builders.

View Price Monitor Try Solar Calculator

58+ Technical articles

24/7 Price tracking

100% Independent reviews

Featured guides

Popular walkthroughs for planning, wiring, and troubleshooting residential solar installations.

Inverters

Compare string, micro, and hybrid inverters. Learn how efficiency curves, clipping, and grounding affect real-world performance.

15 min read Read article

Batteries

Lithium-ion vs lead-acid. Sizing a 24/48 V bank for 2–3 days of autonomy. BMS settings and balancing basics.

12 min read Read article

Controllers

When MPPT earns back its premium in cold or partially shaded arrays. Voltage-drop checks and wire-sizing tips.

10 min read Read article

Spot-price shifts for panels, inverters, batteries, and balance-of-system components across major retailers.

High-efficiency monocrystalline panel

$89.99

+2.5% this week

Grid-tie with battery backup

$599.99

-1.8% this week

Deep cycle, 10-year warranty

$1,499.99

+3.2% this week

Join thousands of homeowners and off-grid builders who use our tools to plan, price, and build their systems.

Get started today