Whole-Home Backup Power,
Minus the Sales Pitch.
Systems Analyzed
Sponsored Specs
Step-by-Step Math
How ShelterVolt Works
Calculate Your Load
Start with actual wattage. We give you worksheets and formulas, not vague advice about "critical circuits." Know your number before you talk to anyone.
Match System to Need
Battery systems, standby generators, or hybrid setups — we break down what each actually costs, what it actually delivers, and when each makes sense.
Cut Through Contractor Pricing
We publish real installed cost ranges, typical markups, and the questions that reveal whether a bid is fair or inflated by 40%.
What We Cover
Home Batteries
LiFePO4 vs NMC chemistry, capacity math, inverter sizing, and installation costs for whole-home battery systems.
Standby Generators
Whole-home standby specs, automatic transfer switches, fuel types, and what contractors don't tell you about sizing.
Portable & Solar
How portable power stations and solar generators actually integrate with a home — and when they're not enough.
Smart Panels
Automatic transfer switches, load management panels, and the difference between a $500 interlock and a $5,000 smart panel.
Sizing & Math
Load calculation worksheets, runtime math, and the formulas that determine what size system you actually need.
Incentives & Cost
Federal ITC, state rebates, utility programs, and real installed cost ranges for battery and generator systems.