Home Power Advisor Sizing tool

Design a resilient home power system with confidence.

Solar, storage, and backup can be a high cost decision with a lot of noisy advice. Home Power Advisor gives you a rigorous, DIY friendly path from goals to a bill of materials you can actually build.

Start with solar sizing See system blueprints Best picks

Buyer intelligence, not hype

Clear assumptions, transparent math, and upgrade paths.

Optimized for prosumers

Works for high loads, EVs, heat pumps, and workshops.

Friendly to DIY and hybrid installs

What to do yourself, and when to hire a pro.

Quick sizing tool

Enter your monthly usage and rate. Get a first pass system size and payback estimate.

Tip: Use the pillar guides to confirm roof geometry, inverter limits, and your storage strategy.
Engineering and electrical work can be hazardous. Follow local code and work with licensed pros when appropriate.

Your first 3 decisions

Most projects stall because people start shopping before they lock requirements. These guides force the right order.

Pillar 1

Solar sizing for high load homes

From utility bill to a realistic array size, with constraints and tradeoffs.
Pillar 2

Battery storage planning

Whole home backup versus critical loads, runtime math, and topologies.
Pillar 3

Generator backup and interlock strategy

When a generator is the better ROI, and how to integrate safely.
Blueprints

Reference system stacks

Three proven architectures you can price and adapt.

How we pick gear

We publish assumptions, tradeoffs, and failure modes. When we recommend a component, it is because it fits a real architecture and has a track record in the field.

Start here if you are ready to price a build:

Hybrid inverter pick

EG4 6000XP class hybrid, strong value for DIY stacks.

LFP battery pick

Wall mount battery for clean installs and modular growth.

Energy monitoring pick

Whole home CT monitoring for consumption and payback clarity.

Interlock basics

Start with safe transfer gear before you buy a generator.