Welcome to Home Energy Decisions

Cut bills. Stay comfortable. Know what to do first.

Use the HEO Hub to explore tools, calculators, and guides that help you decide which upgrades actually make sense for your home.

What you get in 10 minutes

1A clear answer on your biggest pain point—bills or comfort
2A short list of upgrades ranked by payback in your climate
3Real numbers—not guesses—for your specific situation

Latest guides

Fresh reads to help you decide

Start with the newest, most practical posts—then use a tool to run numbers for your home.

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Illustration of a wall-mounted home battery connected by conduit to a small electrical panel, with a sun-and-leaf clean-energy icon, in a clean teal and orange style with no text.

Tesla Powerwall 3 Installed Cost in 2026: The Real All-In Number

Tesla Powerwall 3 installed cost in 2026 is about $13,000 to $16,500 all-in (battery, Gateway, labor, permits). The 30% federal credit is gone. Full breakdown.

Erin KesslerApr 15, 2026Updated Jun 2, 202614 min read
Illustration of a square ceiling air vent with a vacuum-brush nozzle and a magnifying glass, with a few dust particles drifting out, in a clean teal and slate style with no text.

Air Duct Cleaning Cost in 2026: Real Prices and When to Skip It

Air duct cleaning costs $300 to $700 for a typical home (about $35 per vent). Honest 2026 guide: what gets upcharged, and why most homes do not need it.

Erin KesslerApr 14, 2026Updated Jun 2, 202614 min read
Illustration of a house roof gable cutaway showing blown-in attic insulation between the joists with a depth-marker ruler, in a clean teal and amber style with no text.

Attic Insulation Cost in 2026: Price by Material, Size, and R-Value

Attic insulation costs about $1,500 to $3,500 for a typical home, or $1.50 to $4 per sq ft. See 2026 prices by material, attic size, and tax credit.

Erin KesslerApr 13, 2026Updated Jun 14, 202613 min read

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Not sure where to start?

Our blog breaks down energy decisions in plain language—no engineering degree required. Start with the basics, then go deeper when you're ready.