Watt Wise

How To Use Watt Wise

1. Check the numbers

Use a calculator before you talk to a contractor or compare financing claims.

2. Narrow the path

Jump into the topic hub that matches your next purchase or bill problem.

3. Validate assumptions

Use the comparison guides and editorial notes to pressure-test what you are hearing elsewhere.

Use A Calculator First

Run the rough math before you compare quotes

Planning Tool

Solar Payback Calculator

Estimate system size, upfront cost, and simple solar payback.

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Planning Tool

EV Charging Cost Calculator

Estimate charging cost, off-peak savings, and gas comparison.

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Planning Tool

Bill Savings Calculator

Estimate bill reduction, payback, and ten-year savings from home energy upgrades.

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Start With Reading

Go from your first decision to the right deeper guide

Decision Guides

Compare the expensive choices before you buy.

These are the pieces readers usually need when they are close to a quote, product shortlist, or rebate decision.

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Best Heat Pump Water Heaters in 2026

Compare the best 2026 heat pump water heaters: Rheem ProTerra, A.O. Smith Voltex, Bradford White AeroTherm, and GE Profile. Pricing, efficiency, rebates.

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Honeywell T9 vs Ecobee: Which Should You Buy?

Honeywell Home T9 vs Ecobee Premium: compare sensors, smart features, app quality, energy savings, and value to pick the right smart thermostat.

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Ecobee vs Nest: Which Smart Thermostat Is Better?

Ecobee Premium vs Nest Learning 4th Gen: compare price, sensors, learning features, smart home support, and energy savings to pick the best fit.

Browse By Topic

Choose the lane that matches your project

Solar

Payback, panel choices, installer quotes, and system sizing.

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Arizona Electricity Rates: Beat the Heat

Compare Arizona APS, SRP, and TEP plans in 2026. Understand demand charges, TOU rates, and proven ways to cut your summer cooling costs.

Colorado Electricity Rates: Your Guide

Colorado electricity rates in 2026. Understand Xcel Energy rate changes, TOU pricing, community solar, and practical ways to lower your bill.

EV Charging

Home charging cost, install scope, and charger selection.

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EV Tax Credits and Incentives in 2026

Federal EV tax credits expired in 2025, but the 30C charger credit and state rebates remain. Learn what's left and how to claim every dollar.

Solar EV Charging: Power Your Car With Sun

Learn how to charge your EV with solar panels. Covers system sizing, costs, best chargers, savings vs gas, and how to maximize self-consumption.

Efficiency

Weatherization, comfort fixes, and bill-cutting upgrades.

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Best Energy-Efficient Windows for 2026

Compare energy-efficient windows by U-factor, frame type, and cost. Includes budget alternatives, brand picks, and available rebates for 2026.

How Much Electricity Does Each Appliance Use?

See how much electricity every home appliance uses in watts and dollars. Includes cost tables, the top 10 energy hogs, and tips to lower your bill.

Batteries

Backup power, storage economics, and outage planning.

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Home Battery Cost Breakdown 2026

See exactly what a home battery costs in 2026. We break down equipment, labor, permits, and hidden fees so you know where every dollar goes.

How to Buy a Home Battery in 2026

How to buy a home battery in 2026: decide if you need one, size it correctly, compare brands, and avoid the mistakes that cost thousands.

Incentives

Tax credits, utility rebates, and stacking rules.

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How to Stack Energy Rebates: A 2026 Action Guide

Stack federal, state, utility, and manufacturer incentives to cut thousands off clean energy upgrades. Step-by-step 2026 action guide.

Solar Financing Options in 2026

Compare every way to pay for solar panels in 2026: cash, loans, leases, PPAs, and prepaid plans, plus tips to avoid predatory financing.

Electricity Rates

State-by-state context for rate pressure and bill changes.

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North Dakota Electricity Rates: What to Know

North Dakota has the cheapest power in America. See how coal and wind keep costs down and what threatens that advantage in 2026.

Rhode Island Electricity Rates: What to Know

Rhode Island electricity hits 28-31 cents/kWh. See how offshore wind is changing the game and what you can do about your 2026 bill.

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Who We Write For

Consumer-focused guidance for homeowners, renters, and EV drivers.

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How We Review

How Watt Wise researches products, incentives, and cost claims.

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How We Make Money

How affiliate links work and how they do not affect editorial judgment.

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The guides that keep answering the same expensive questions

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