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Foundational guides that explain the science and economics behind the calculators.
Solar Fundamentals: From Sunlight to Socket
How solar panels turn sunlight into electricity, the components of a residential system, and the physics that determines how much energy you actually produce.
Home Battery Storage: A Practical Buyer's Guide
LFP vs NMC chemistry, capacity sizing, inverter compatibility, and the real-world economics of home battery storage.
Reading Your Electricity Bill: Understanding Every Line Item
Decoding every line on your electricity bill: generation, transmission, distribution, demand charges, fixed fees, and how to spot billing errors.
How Solar Panels Work: From Sunlight to Electricity
How solar panels convert sunlight into electricity. The photoelectric effect, panel construction, and how energy flows from your roof to your outlets.
Understanding Solar Systems: Components, Types, and Configurations
Complete guide to residential solar system components, types (grid-tied, off-grid, hybrid), and how to choose the right configuration.
Battery Sizing Explained: How to Choose the Right Home Battery
How to size a home battery for backup, self-consumption, or TOU arbitrage. Includes DoD, autonomy days, and LFP vs lead-acid comparison.
Backup Power Planning: Generators, Batteries, and Hybrid Systems
How to plan backup power for your home. Compare generators, batteries, and hybrid systems for outage protection.
Solar Payback Explained: How to Calculate Your Return on Investment
How solar payback works, what factors drive it, and how to calculate your return on investment. Includes state-by-state payback benchmarks.
Solar Savings Calculations: Projecting 25 Years of Energy Savings
How to project solar savings over 25 years. Includes inflation, degradation, net metering, and opportunity cost calculations.