SolarToolsEnergy explainers
Long-form articles on solar, batteries, EVs, and the economics of home energy.
How Many Solar Panels Do I Need? A Complete Sizing Guide
Everything you need to know about sizing a residential solar system: energy usage, peak sun hours, panel wattage, losses, and real-world examples.
Understanding Time-of-Use Electricity Rates: Save Money by Shifting Load
How TOU pricing works, why utilities use it, and how much you can save by shifting dishwasher, laundry, EV charging, and water heating to off-peak hours.
Is a Home Battery Worth It? Breaking Down the ROI Math
The honest economics of home battery storage. Why most batteries don't pay back on pure economics, and the three cases where they actually do.
EV Charging at Home: Costs, Speeds, and Savings Explained
Level 1 vs Level 2 charging, real-world costs, public vs home charging economics, and how much an EV actually increases your electricity bill.
Cutting Your Electricity Bill: 12 Strategies That Actually Work
Twelve proven strategies to cut your electricity bill, ranked by ROI. From free behavioral changes to equipment upgrades that pay back in under 5 years.
Best Solar Panels in 2026: Efficiency, Warranty, and Value Compared
Comparing the best solar panels of 2026 by efficiency, temperature coefficient, warranty, and price per watt. Includes REC, SunPower, Q Cells, and more.
Is Solar Worth It in 2026? Honest Economics for Homeowners
Is solar worth it in 2026? Honest analysis of solar economics, payback periods, net metering changes, and when solar makes financial sense.
Heat Pump vs Furnace: The Complete 2026 Guide for Homeowners
Heat pump vs furnace: which is better in 2026? Compare operating costs, install costs, comfort, cold-climate performance, and ROI.
NEM 3.0 Explained: What California Solar Owners Need to Know
NEM 3.0 explained: how California's net metering reform changed solar economics, what it means for new and existing solar owners, and how batteries help.
Load Shedding Survival: Solar + Battery Guide for South Africa
Solar + battery guide for South African load shedding. Size your system, choose the right battery, and calculate Section 12B tax savings.
How to Read Your Electricity Bill (US & South Africa) — Every Charge Explained
How to read your electricity bill in the US or South Africa. Every charge explained — generation, transmission, distribution, taxes, and hidden fees.
EV vs Hybrid vs Petrol: 2026 Total Cost Comparison
EV vs hybrid vs petrol in 2026: total cost of ownership, fuel savings, depreciation, and which powertrain wins for different drivers.