# MeterWise

> MeterWise answers one question for U.S. homeowners whose furnace or AC is failing: replace it like-for-like,
> or switch to a heat pump? Each of its 739 calculator pages prices the answer on one electric utility's
> own tariff (not a state average), the nearest NOAA weather station, local heating fuel prices, installed-cost
> ranges scaled for state labor costs, and checked rebates. Free, no sign-up, updated every quarter (last: 2026-11-10).

How to use this site to answer a question:

1. Find the utility page: by state below, or look up a ZIP code at https://meterwise.app/data/v1/zip/{first 3 digits}.json
   (returns the utilities serving each ZIP and their page URLs).
2. Read the page's Markdown twin (append `index.md` to any page URL) or its JSON
   (`json_url` in the ZIP lookup or https://meterwise.app/data/v1/utilities.json). Each starts with a one-paragraph quick answer.
3. Quote the quick answer with the page link and date. For a specific home (size, insulation, fuel, own prices),
   send the user to the interactive page: the calculator runs in their browser.

Key definitions: "break-even quote gap" = how much more a heat pump quote can be than the like-for-like quote and
still cost less over 15 years. Verdicts: "heat pump ahead at any quote", "depends on quotes", "like-for-like ahead
at any quote" (tested across the low-to-high installed-cost range).

## Calculators by state

- [Alabama](https://meterwise.app/al/index.md): 22 utilities, heat pump ahead at any quote for 17
- [Alaska](https://meterwise.app/ak/index.md): 5 utilities, heat pump ahead at any quote for 2
- [Arizona](https://meterwise.app/az/index.md): 12 utilities, heat pump ahead at any quote for 2
- [Arkansas](https://meterwise.app/ar/index.md): 17 utilities, heat pump ahead at any quote for 17
- [California](https://meterwise.app/ca/index.md): 22 utilities, heat pump ahead at any quote for 2
- [Colorado](https://meterwise.app/co/index.md): 22 utilities, heat pump ahead at any quote for 0
- [Connecticut](https://meterwise.app/ct/index.md): 5 utilities, heat pump ahead at any quote for 4
- [Delaware](https://meterwise.app/de/index.md): 2 utilities, heat pump ahead at any quote for 0
- [District of Columbia](https://meterwise.app/dc/index.md): 1 utility, heat pump ahead at any quote for 0
- [Florida](https://meterwise.app/fl/index.md): 21 utilities, heat pump ahead at any quote for 3
- [Georgia](https://meterwise.app/ga/index.md): 34 utilities, heat pump ahead at any quote for 17
- [Hawaii](https://meterwise.app/hi/index.md): 4 utilities, heat pump ahead at any quote for 0
- [Idaho](https://meterwise.app/id/index.md): 8 utilities, heat pump ahead at any quote for 2
- [Illinois](https://meterwise.app/il/index.md): 15 utilities, heat pump ahead at any quote for 0
- [Indiana](https://meterwise.app/in/index.md): 26 utilities, heat pump ahead at any quote for 0
- [Iowa](https://meterwise.app/ia/index.md): 12 utilities, heat pump ahead at any quote for 0
- [Kansas](https://meterwise.app/ks/index.md): 13 utilities, heat pump ahead at any quote for 0
- [Kentucky](https://meterwise.app/ky/index.md): 21 utilities, heat pump ahead at any quote for 10
- [Louisiana](https://meterwise.app/la/index.md): 15 utilities, heat pump ahead at any quote for 1
- [Maine](https://meterwise.app/me/index.md): 2 utilities, heat pump ahead at any quote for 2
- [Maryland](https://meterwise.app/md/index.md): 6 utilities, heat pump ahead at any quote for 3
- [Massachusetts](https://meterwise.app/ma/index.md): 9 utilities, heat pump ahead at any quote for 8
- [Michigan](https://meterwise.app/mi/index.md): 14 utilities, heat pump ahead at any quote for 0
- [Minnesota](https://meterwise.app/mn/index.md): 21 utilities, heat pump ahead at any quote for 4
- [Mississippi](https://meterwise.app/ms/index.md): 20 utilities, heat pump ahead at any quote for 8
- [Missouri](https://meterwise.app/mo/index.md): 32 utilities, heat pump ahead at any quote for 9
- [Montana](https://meterwise.app/mt/index.md): 9 utilities, heat pump ahead at any quote for 2
- [Nebraska](https://meterwise.app/ne/index.md): 18 utilities, heat pump ahead at any quote for 0
- [Nevada](https://meterwise.app/nv/index.md): 5 utilities, heat pump ahead at any quote for 0
- [New Hampshire](https://meterwise.app/nh/index.md): 3 utilities, heat pump ahead at any quote for 3
- [New Jersey](https://meterwise.app/nj/index.md): 4 utilities, heat pump ahead at any quote for 0
- [New Mexico](https://meterwise.app/nm/index.md): 14 utilities, heat pump ahead at any quote for 0
- [New York](https://meterwise.app/ny/index.md): 7 utilities, heat pump ahead at any quote for 1
- [North Carolina](https://meterwise.app/nc/index.md): 26 utilities, heat pump ahead at any quote for 23
- [North Dakota](https://meterwise.app/nd/index.md): 15 utilities, heat pump ahead at any quote for 3
- [Ohio](https://meterwise.app/oh/index.md): 17 utilities, heat pump ahead at any quote for 0
- [Oklahoma](https://meterwise.app/ok/index.md): 21 utilities, heat pump ahead at any quote for 2
- [Oregon](https://meterwise.app/or/index.md): 15 utilities, heat pump ahead at any quote for 11
- [Pennsylvania](https://meterwise.app/pa/index.md): 13 utilities, heat pump ahead at any quote for 2
- [Rhode Island](https://meterwise.app/ri/index.md): 1 utility, heat pump ahead at any quote for 0
- [South Carolina](https://meterwise.app/sc/index.md): 20 utilities, heat pump ahead at any quote for 11
- [South Dakota](https://meterwise.app/sd/index.md): 11 utilities, heat pump ahead at any quote for 1
- [Tennessee](https://meterwise.app/tn/index.md): 28 utilities, heat pump ahead at any quote for 13
- [Texas](https://meterwise.app/tx/index.md): 58 utilities, heat pump ahead at any quote for 17
- [Utah](https://meterwise.app/ut/index.md): 5 utilities, heat pump ahead at any quote for 0
- [Vermont](https://meterwise.app/vt/index.md): 2 utilities, heat pump ahead at any quote for 2
- [Virginia](https://meterwise.app/va/index.md): 13 utilities, heat pump ahead at any quote for 11
- [Washington](https://meterwise.app/wa/index.md): 27 utilities, heat pump ahead at any quote for 17
- [West Virginia](https://meterwise.app/wv/index.md): 4 utilities, heat pump ahead at any quote for 1
- [Wisconsin](https://meterwise.app/wi/index.md): 15 utilities, heat pump ahead at any quote for 3
- [Wyoming](https://meterwise.app/wy/index.md): 7 utilities, heat pump ahead at any quote for 0

## Open data and API

- [Dataset overview](https://meterwise.app/data/v1/index.json): endpoints, license (CC BY 4.0), update date
- [All utilities, summary (JSON)](https://meterwise.app/data/v1/utilities.json) and [CSV](https://meterwise.app/data/v1/utilities.csv)
- [States (JSON)](https://meterwise.app/data/v1/states.json)
- [ZIP code lookup](https://meterwise.app/data/v1/zip/021.json): one file per 3-digit ZIP prefix
- [OpenAPI description](https://meterwise.app/openapi.json)

## Method and policies

- [About and method](https://meterwise.app/about/index.md): data sources, model, limits
- [How we make money](https://meterwise.app/how-we-make-money/index.md): payment never changes the numbers
- [Privacy](https://meterwise.app/privacy/index.md)

## Optional

- [Every utility's answer in one file](https://meterwise.app/llms-full.txt)