HyreHVAC

Statistics

HVAC rebate and incentive statistics

Not a table of rebate amounts. The measured facts about incentives: how many households claimed one, how much money there is, and how far it goes against the homes it was meant to reach.

Updated September 2026 · Data as of IRS and DOE pages read 2026-09-05; every source dated below

Written by HYRE HVAC Research Desk

$65.01 Home Energy Rebates allocated per US household HyreHVAC calculation: DOE allocation ÷ EIA RECS 2020 households, 50 states + DC
$0 federal HVAC tax credit for a 2026 installation §25C and §25D both closed to property placed in service after December 31, 2025. Read from irs.gov 2026-09-05
1 in 494 households claimed a heat pump credit in TY2023 HyreHVAC calculation from Treasury counts and the RECS household universe

The finding

The federal HVAC tax credit for a 2026 installation is $0: Public Law 119-21 ended §25C and §25D for property placed in service after December 31, 2025. What remains is the DOE Home Energy Rebates.

HyreHVAC calculation: its $8.03 billion state allocation works out to $65.01 per US household, against a headline maximum of $14,000, and varies 7.2:1 between states. We publish no rebate amounts.

Read the label, not just the number

What counts as an HVAC rebate statistic?

A measured fact about who claimed, how much money exists and how far it goes; not a program’s dollar amount.

Search for HVAC rebate statistics and almost everything returned is a grid of dollar amounts: what a given utility pays for a heat pump, what a given state pays for a furnace.

Those are not statistics. They are quotations of program terms, they are undated more often than not, and a large share of the ones published today still carry a federal credit that closed at the end of 2025.

A statistic about incentives answers a different kind of question. How many households actually claimed one. How much money exists. How far that money goes against the number of homes it is meant to reach.

Whether the program is large relative to the problem or small. Those questions have federal answers (Treasury publishes the claim counts, DOE publishes the allocations, EIA counts the homes), and we have not found anyone joining them.

Every figure below carries one of three labels.
Agency published: the number as the agency published it.

We are repeating, not computing.
HyreHVAC calculation: computed by us from published agency figures, with the arithmetic shown in the source column.

These are our claims and our responsibility.
Regulatory provision: a threshold, rate or date read directly from the rule or the agency’s own page on the date stated.

The split on this page is counted, not claimed: Of 45 figures in the tables below, 22 are HyreHVAC calculations (49%), 13 are agency published and 10 are regulatory provisions. That count is generated from the tables themselves at build time, so it cannot drift away from what the page actually contains.

Treasury publishes its claim counts as bounds — "more than 250,000", "nearly 700,000". Anything we derive from a bound is a bound, and every derived figure below is written "about" or "roughly" for that reason rather than as false precision.

Which five rebate statistics matter most?

$0 federal residential HVAC tax credit for property placed in service in 2026 IRS §25C and §25D pages, read 2026-09-05 · regulatory provision
$65.01 Home Energy Rebates allocated per household across the 50 states and DC HyreHVAC calculation from DOE and RECS 2020
7.2:1 spread in allocation per household, Wyoming to New York HyreHVAC calculation from DOE and RECS 2020
250,000+ families claiming a heat pump credit, tax year 2023 US Treasury · agency published
0.46% of US households the state allocation could reach at the $14,000 maximum HyreHVAC calculation

Is there still a federal HVAC tax credit?

Not for a 2026 installation. Two sections of the Internal Revenue Code covered home HVAC, and both closed on the same date.

The caps are recorded here because they govern what a 2025 installation may still claim on a 2025 return, and because a great deal of material published in 2026 is still quoting them as current.

StatisticFigureProvenanceSource
§25C Energy Efficient Home Improvement Credit, annual cap on heat pumps$2,000Regulatory provisionIRS, read 2026-09-05
§25C annual cap on building-envelope and other qualifying property$1,200Regulatory provisionIRS, read 2026-09-05
§25C cap on a home energy audit$150Regulatory provisionIRS, read 2026-09-05
§25C — last date property could be placed in service and qualifyDecember 31, 2025Regulatory provisionIRS, read 2026-09-05
§25D Residential Clean Energy Credit — rate on qualifying property30% of costRegulatory provisionIRS, read 2026-09-05
§25D — annual or lifetime dollar capNone, except for fuel cell propertyRegulatory provisionIRS, read 2026-09-05
§25D — last date property could be placed in service and qualifyDecember 31, 2025Regulatory provisionIRS, read 2026-09-05
Federal residential HVAC tax credit available for a 2026 installation$0HyreHVAC calculationHyreHVAC reading of both IRS pages, 2026-09-05
Statute that terminated both creditsPublic Law 119-21Regulatory provisionPublic Law 119-21
DOE Home Energy Rebates — Home Efficiency Rebates statutory maximumup to $8,000Regulatory provisionDOE, read 2026-09-05
DOE Home Energy Rebates — Home Electrification and Appliance Rebates maximumup to $14,000Regulatory provisionDOE, read 2026-09-05

IRS pages read 2026-09-05; the §25C page was itself last reviewed by the IRS on 2026-04-28. Both credits were terminated by Public Law 119-21. HyreHVAC is not a tax adviser and this is not tax advice.

What happened to the federal tax credit → · The rebate program router: which programs to check, in what order →

How many households claimed an energy tax credit in 2023?

More than 3,400,000 families claimed one, and more than 250,000 for a heat pump.

Treasury’s claim count is the only national measurement of residential energy incentive uptake that exists, and it is the figure missing from every rebate roundup.

It matters because the interesting question about an incentive is not what it pays but how many people it reaches.

Families claiming each measure, tax year 20230Residential solar electricity750,000+Insulation and air sealing~700,000Electric or gas heat pumps250,000+Heat pump water heaters100,000+families, returns processed through May 23, 2024
Families claiming each measure, tax year 2023. A household may appear in more than one bar, so these do not sum to the total. US Department of the Treasury, released 2024-08-07. Retrieved 2026-09-05.
StatisticFigureProvenanceSource
Families claiming either residential energy credit, tax year 2023more than 3,400,000Agency publishedTreasury, released 2024-08-07
Aggregate value of those credits$8.40 billionAgency publishedTreasury
— claimed under §25D, Residential Clean Energy Creditmore than $6.00 billionAgency publishedTreasury
— claimed under §25C, Energy Efficient Home Improvement Creditmore than $2.00 billionAgency publishedTreasury
Families claiming an electric or natural gas heat pumpmore than 250,000Agency publishedTreasury
Families claiming a heat pump water heatermore than 100,000Agency publishedTreasury
Families claiming insulation and air sealingnearly 700,000Agency publishedTreasury
Families claiming residential solar electricitymore than 750,000Agency publishedTreasury
Heat pump claims as a share of all US householdsabout 0.20% — roughly one in 494HyreHVAC calculationTreasury ÷ RECS 2020
Any residential energy credit as a share of all US householdsabout 2.8%HyreHVAC calculationTreasury ÷ RECS 2020
Mean credit per claiming family, both credits combinedabout $2,471HyreHVAC calculationTreasury, $8.40 billion ÷ 3,400,000
Returns processed throughMay 23, 2024Agency publishedTreasury

Treasury press release of 2024-08-07, covering tax year 2023 returns filed and processed through May 23, 2024. Later-filed returns are not included, so every count is a floor. The share and per-household figures are ours, computed against the RECS household universe.

The heat pump line is Treasury’s own category, "electric or natural gas heat pumps". It is not separable into the two technologies from the published release.

The HyreHVAC join

How much Home Energy Rebates money is there per household?

$65.01 on average, on our calculation. DOE publishes dollars per jurisdiction. EIA counts households per jurisdiction. Dividing one by the other is the whole of the original work on this page, and it converts a headline maximum into the quantity that actually governs how many homes a state program can reach.

Home Energy Rebates allocated per household, by stateAK290ME127VT226NH129WA56ID123MT164ND236MN67IL54WI63MI54NY42RI152MA54OR69NV84WY306SD198IA95IN70OH53PA51NJ54CT72CA44UT97CO62NE119MO62KY77WV127VA58MD60DE173AZ57NM111KS94AR92TN63NC52SC70DC188OK87LA123MS97AL77GA56HI144TX67FL43$ per household061122184245306Allocation divided by households. This is not an amount any household receives.
Home Energy Rebates allocated per household, by state: Equal squares, because a per-household rate has nothing to do with land area. Wyoming $305.87; New York $42.25; national $65.01. HyreHVAC calculation from the DOE allocation table and EIA RECS 2020 household counts.
StatisticFigureProvenanceSource
Total allocated across all 56 jurisdictions$8.32 billionHyreHVAC calculationSum of DOE’s own table, 2026-09-05
Allocated to the 50 states and DC$8.03 billionHyreHVAC calculationSum of DOE’s table, excluding the 5 territories
Largest single jurisdiction allocationTexas, $690,029,570Agency publishedDOE allocation table
Smallest single jurisdiction allocationNorthern Marianas, $49,824,070Agency publishedDOE allocation table
Households in the 50 states and DC123.5 millionHyreHVAC calculationRECS 2020
Allocation per household, national$65.01HyreHVAC calculationDOE ÷ RECS 2020
Highest allocation per household, any jurisdictionWyoming, $305.87HyreHVAC calculationDOE ÷ RECS 2020
Lowest allocation per household, any jurisdictionNew York, $42.25HyreHVAC calculationDOE ÷ RECS 2020
Ratio between them7.2 to 1HyreHVAC calculationDOE ÷ RECS 2020
Households the state allocation could reach if every dollar were spent at the $14,000 maximumabout 573,581HyreHVAC calculation$8.03 billion ÷ $14,000
— as a share of US householdsabout 0.46%HyreHVAC calculationDOE ÷ RECS 2020

DOE describes the Home Energy Rebates as “nearly $9 billion”; the published allocation table sums to $8.32 billion, because the headline figure also covers a separate $225 million set aside for Indian Tribes and program administration, neither of which appears in the jurisdiction table.

We use the table, because it is the part we can verify line by line. DOE’s Inflation Reduction Act formula allocation, announced 2022-11-02 and parsed directly from DOE’s own table on 2026-09-05. Households from EIA RECS 2020.

The five territories (American Samoa, Guam, Northern Marianas, Puerto Rico, U.S. Virgin Islands) carry no RECS household count and are excluded from every per-household figure.

How much rebate money did each state get?

The complete join, ordered by allocation per household. The first three columns are DOE’s, parsed from its own table. The household count is EIA’s. The last column is ours.

JurisdictionHome Efficiency RebatesElectrification & Appliance RebatesTotal allocationHouseholdsPer household
Wyoming$34,686,390$34,484,390$69,170,780226,146$305.87
Alaska$37,368,480$37,150,940$74,519,420257,193$289.74
North Dakota$37,338,470$37,121,060$74,459,530315,573$235.95
Vermont$29,362,920$29,192,160$58,555,080258,824$226.24
South Dakota$34,379,110$34,178,990$68,558,100346,425$197.90
District of Columbia$29,808,850$29,635,400$59,444,250316,453$187.85
Delaware$33,029,650$32,837,400$65,867,050380,454$173.13
Montana$35,692,560$35,484,830$71,177,390433,329$164.26
Rhode Island$32,006,100$31,820,030$63,826,130418,689$152.44
Hawaii$34,293,520$34,093,900$68,387,420474,378$144.16
New Hampshire$34,952,780$34,749,580$69,702,360538,443$129.45
Maine$35,936,920$35,728,050$71,664,970564,535$126.95
West Virginia$44,275,290$44,017,970$88,293,260696,161$126.83
Idaho$40,604,320$40,367,910$80,972,230656,511$123.34
Louisiana$106,593,900$105,972,960$212,566,8601,727,226$123.07
Nebraska$45,813,680$45,547,120$91,360,800765,201$119.39
New Mexico$43,999,070$43,742,970$87,742,040787,053$111.48
Utah$50,698,180$50,403,030$101,101,2101,039,997$97.21
Mississippi$52,543,050$52,237,320$104,780,3701,084,534$96.61
Iowa$60,827,450$60,473,810$121,301,2601,281,948$94.62
Kansas$52,971,870$52,663,910$105,635,7801,127,072$93.73
Arkansas$52,739,720$52,433,010$105,172,7301,143,632$91.96
Oklahoma$64,764,840$64,388,040$129,152,8801,492,833$86.52
Nevada$48,200,980$47,920,160$96,121,1401,139,409$84.36
Kentucky$67,319,140$66,927,750$134,246,8901,738,263$77.23
Alabama$73,032,210$72,607,220$145,639,4301,900,406$76.64
Connecticut$49,830,560$49,541,390$99,371,9501,381,897$71.91
Indiana$91,302,840$90,772,430$182,075,2702,599,597$70.04
South Carolina$68,852,430$68,451,650$137,304,0801,970,536$69.68
Oregon$57,046,250$56,714,440$113,760,6901,654,154$68.77
Texas$346,022,980$344,006,590$690,029,57010,255,403$67.28
Minnesota$74,459,590$74,027,440$148,487,0302,229,783$66.59
Tennessee$83,877,940$83,390,060$167,268,0002,657,514$62.94
Wisconsin$74,904,830$74,470,200$149,375,0302,388,876$62.53
Missouri$75,807,060$75,366,640$151,173,7002,429,813$62.22
Colorado$70,395,350$69,985,890$140,381,2402,259,861$62.12
Maryland$68,611,060$68,212,540$136,823,6002,281,335$59.98
Virginia$94,537,110$93,987,430$188,524,5403,242,014$58.15
Arizona$76,868,720$76,421,080$153,289,8002,675,608$57.29
Washington$83,266,580$82,782,050$166,048,6302,939,032$56.50
Georgia$109,817,290$109,178,020$218,995,3103,881,405$56.42
New Jersey$91,840,040$91,307,380$183,147,4203,393,983$53.96
Michigan$105,904,990$105,291,160$211,196,1503,918,917$53.89
Massachusetts$73,233,910$72,809,130$146,043,0402,713,778$53.82
Illinois$132,219,190$131,452,470$263,671,6604,900,521$53.80
Ohio$124,875,180$124,150,970$249,026,1504,739,001$52.55
North Carolina$104,918,280$104,307,840$209,226,1204,012,739$52.14
Pennsylvania$129,980,360$129,226,380$259,206,7405,128,400$50.54
California$291,951,040$290,252,580$582,203,62013,180,886$44.17
Florida$173,668,720$172,657,670$346,326,3908,062,164$42.96
New York$159,338,380$158,415,850$317,754,2307,521,120$42.25

Columns 1–3: US Department of Energy, Home Energy Rebates allocations, announced 2022-11-02, parsed from DOE’s published table on 2026-09-05. Column 4: EIA RECS 2020 weighted household counts. Column 5: HyreHVAC calculation, column 3 ÷ column 4.

The 5 territories DOE also funded (American Samoa, Guam, Northern Marianas, Puerto Rico, U.S. Virgin Islands) are omitted because RECS does not cover them, so no per-household figure can be computed. These rows are excluded from the provenance count above, which covers the summary tables.

Reuse of this table is welcome with attribution to HyreHVAC and to the two underlying agencies. An allocation per household is not an amount any household receives.

What does the per-household figure mean?

HyreHVAC analysis: The 7.2:1 spread is not evidence that Wyoming was favored.

It is what happens when a formula with a small-state floor is applied to jurisdictions whose household counts differ by two orders of magnitude: Wyoming has 226,146 households and New York has 7,521,120.

The floor is a deliberate policy choice, not an error, and the consequence is that a household’s theoretical share of the national program depends heavily on which state it is in.

HyreHVAC analysis: The more useful comparison is between $65.01 and $14,000. A program whose headline maximum is more than two hundred times its per-household funding is not a benefit most households will receive; it is a targeted subsidy that will be exhausted by a small number of large claims.

That is a legitimate design (the statute directs the electrification rebates at income-qualified households), but it is not what "up to $14,000" communicates to a reader deciding whether to wait for a rebate before replacing a failed system.

What this figure is not: It is not an amount any household receives, not an entitlement, and not a forecast of what a state will pay out.

Allocation is money apportioned to a jurisdiction under a formula; what reaches households depends on the state’s program design, its administrative capacity, and how much of the allocation is still obligated.

We do not assert the current obligation status of any state’s funds, because DOE does not publish it in a form we can verify on a schedule.

The useful next step: Treat the per-household figure as a scale check rather than a plan.

If you are weighing whether to delay a replacement until a rebate arrives, the number that governs your decision is your own State Energy Office’s answer about whether a program is open today, not any national figure, including this one.

Our state-by-state status census is a starting point, and heat pump rebates explains the income bands.

DOE’s own current status line, read 2026-09-05: “Home Energy Rebates are now available in select states. Additional details on active state, territory or Tribal rebate programs are coming soon.” DOE directs residents to their State or Territory Energy Office rather than publishing a national lookup.

Which homes were the incentives aimed at?

The existing housing stock, most of it heated with gas. Incentive figures are meaningless without a denominator. This is the housing stock the federal programs were written against, from the same survey the claim counts are measured against.

StatisticFigureProvenanceSource
US households123.53 millionAgency publishedRECS 2020
Households already heating with a heat pump13.9% (17.2 million)HyreHVAC calculationRECS 2020
Households heating with natural gas, the largest conversion pool50.8%Agency publishedRECS 2020
Households heating with fuel oil4.0%HyreHVAC calculationRECS 2020
Households heating with propane4.2%HyreHVAC calculationRECS 2020
Households with ductwork, the precondition for a ducted retrofit82.0%HyreHVAC calculationRECS 2020
Households with cooling equipment 15 years or older19.7%HyreHVAC calculationRECS 2020
Households with cooling equipment 20 years or older9.6%HyreHVAC calculationRECS 2020
Households with a smart thermostat10.3%HyreHVAC calculationRECS 2020
Households with income under $20,000 a year18.7 millionHyreHVAC calculationRECS 2020
Households with income under $40,000 a year42.8 millionHyreHVAC calculationRECS 2020

EIA Residential Energy Consumption Survey 2020, a federal survey of 18,496 households weighted to represent 123.53 million homes. Shares are survey estimates with published standard errors; full method and error bars are on the study pages.

The full HVAC statistics archive: 90+ figures, every one sourced →

Which rebate figures will this page not publish?

Four kinds of figure that appear on most competing pages and will not appear here. Utility rebate terms are covered on utility rebates.

Rebate amounts, from anywhere

The broadest public index of US incentives is DSIRE, maintained by the NC Clean Energy Technology Center.

Checked 2026-09-05: its human-facing web app is public and free to browse, but its data API returns HTTP 403 to unauthenticated requests with the message “For license and usage information, please visit docs.dsireusa.org”, and there is no open bulk download.

The data is licensed and we hold no license, so we link to DSIRE rather than republishing it.

Scraping it and restating figures we cannot re-verify on a schedule would also produce exactly the decaying tables this page exists as an alternative to.

“The average HVAC rebate is $X”

No agency measures this. Program amounts are terms rather than observations, they are not sampled, and averaging published maximums across programs of wildly different sizes produces a number that describes nothing.

The nearest defensible figure is Treasury’s mean credit per claiming family, which is on this page, labeled as ours, and is a tax credit rather than a rebate.

A count of how many rebate programs exist in the US

Quoted constantly, always without a definition. It depends entirely on whether you count a utility running four measures as one program or four, whether expired programs are included, and whether municipal utilities are covered. Without a published counting rule it is not a statistic, and no agency publishes one.

How much of each state’s allocation has been spent

This would be the single most useful figure on the page and we cannot source it. DOE publishes allocations and a general availability statement; it does not publish per-state obligation or disbursement in a form we can retrieve and re-check. We would rather leave the column empty than fill it with an estimate.

How often is this page checked?

Quarterly, and whenever a federal source changes. Incentives are the fastest-changing topic on this site, and a date stamp is not a substitute for having actually re-read the source. This is the schedule and the triggers.

Published
September 5, 2026.
Last verified
September 5, 2026: the IRS §25C and §25D pages, the DOE Home Energy Rebates page and the DOE allocation table were each opened and read on that date.
Primary sources
irs.gov (§25C, §25D), energy.gov (Home Energy Rebates, allocation table), home.treasury.gov (tax year 2023 claims), eia.gov (RECS 2020).
Review frequency
Quarterly, and the federal lines are re-read before any other page on this site cites them.
Next review
December 2026.
Update triggers
Any change to the IRS pages for §25C or §25D; any legislation restoring or replacing either credit; a DOE change to Home Energy Rebates status, allocation or statutory maximums; a new Treasury claims release; the next RECS cycle, which resets every denominator on this page.

If a figure here is out of date, the fault is ours and we would rather hear it. Corrections are made on the page with a dated note rather than silently.

How should you cite these rebate statistics?

Cite the agency for agency figures and HyreHVAC for our calculations. Journalists, researchers and analysts are welcome to cite or reproduce anything on this page, including the charts. Where a figure is labeled agency published or regulatory provision, cite the agency directly; we are repeating it and the agency’s page is the better citation.

Where a figure is labeled HyreHVAC calculation, please attribute it to HyreHVAC and name the underlying sources: for example, "HyreHVAC analysis of US Department of Energy Home Energy Rebates allocations and EIA Residential Energy Consumption Survey 2020 household counts".

The arithmetic for every one of them is printed in the source column, so the calculation can be checked rather than taken on trust.

The allocation table is parsed from DOE’s published table by script rather than transcribed by hand, and the provenance split at the top of this page is counted from the tables at build time. Both choices exist so that a figure cannot appear here without its source traveling with it.

Questions

Is there still a federal tax credit for a heat pump in 2026?
No. Public Law 119-21 ended both the §25C Energy Efficient Home Improvement Credit and the §25D Residential Clean Energy Credit for property placed in service after December 31, 2025. For a system installed in 2026 the federal credit is $0. Read from irs.gov on 2026-09-05; much published material has not caught up.
How many households actually claimed a heat pump tax credit?
More than 250,000 families claimed a heat pump credit in tax year 2023, per the US Treasury (returns processed through May 23, 2024). HyreHVAC calculation: that is roughly one household in 494, about 0.20%. Treasury publishes the count as a floor, so the true figure is somewhat higher.
How much money is in the federal Home Energy Rebates program?
$8.32 billion across 56 jurisdictions in DOE’s allocation table, of which $8.03 billion goes to the 50 states and DC. HyreHVAC calculation: divided by the 123.5 million households there, that is $65.01 per household. It is money apportioned to states, not money any household receives.
Which state gets the most rebate money per household?
Wyoming, at $305.87 per household (HyreHVAC calculation from DOE and EIA RECS 2020). New York is lowest at $42.25, a 7.2 to 1 spread. That reflects a small-state floor in the formula, not a judgment about need. By total dollars, Texas received the most.
Why does this page not list rebate amounts by state?
Because we cannot source them in a way we could keep honest. The broadest public index, DSIRE, is licensed data we hold no license for (checked 2026-09-05). And amounts decay: budgets close mid-year and utilities change terms without notice. That is why so many tables still show a credit that ended in 2025.
What were the §25C credit limits before the credit ended?
$2,000 a year for heat pumps, $1,200 for envelope and other property, and $150 for a home energy audit, per the IRS page read 2026-09-05. The credit was nonrefundable with no lifetime cap. It applied to property placed in service before December 31, 2025. HyreHVAC is not a tax adviser.
How much did the federal residential energy credits cost in total?
$8.40 billion in tax year 2023, claimed by more than 3,400,000 families: more than $6.00 billion under §25D and more than $2.00 billion under §25C. HyreHVAC calculation: about $2,471 per claiming family. §25D was 30% of cost with no cap; §25C was capped at $2,000 a year for heat pumps.
Are the DOE Home Energy Rebates available in my state?
Ask your State Energy Office. DOE’s own status line, read 2026-09-05, is: “Home Energy Rebates are now available in select states. Additional details on active state, territory or Tribal rebate programs are coming soon.” DOE publishes no national lookup. Our state status census records what each administrator said on one date.
Where do HVAC rebate statistics usually come from?
Mostly from program pages, not measurement. A figure is read off a utility’s terms, repeated by blogs, and soon quoted as if an agency measured it. The measured national figures are few: Treasury counts who claimed credits, DOE publishes allocations, and EIA counts homes. Everything here traces to one of those, or to the IRS rules.

Written and audited by

HYRE HVAC Research Desk

Primary-source research, data analysis and fact checking

We are a research desk, not a sales floor. We read the federal microdata file, the statute or the manufacturer data sheet ourselves, and we publish the figure with the document it came from and the date we retrieved it.

Where a number cannot be traced to a primary source, we publish the shorter page and say what we could not verify.

The counts below are generated from the published pages themselves, last counted September 28, 2026, and they are what we have actually published rather than what we intend to.

13
studies published
12
federal sources read and cited
8
studies published with their full dataset as CSV
51
jurisdictions reproduced against EIA’s own tables

How this desk works

  • Primary sources only. Federal data comes from the agency that collects it, in the file that agency publishes. We do not cite an article that cites a source; we download the source and compute the figure ourselves.
  • We validate against the agency before we publish. First, we use each federal microdata file to reproduce the agency’s own published tables. Our cooling research reproduces EIA’s state estimates and standard errors for all 51 jurisdictions. That check caught a variance formula that was off by a factor of four.
  • Every estimate carries its uncertainty. These are survey figures, not counts. Standard errors are computed from the replicate weights the federal file supplies and printed beside the estimate. An estimate too imprecise to publish is reported as such rather than printed.
  • Nothing is typed by hand. Prose, tables and charts all read from one dataset built by script, so a number in a sentence and the same number in the table below it cannot disagree.
  • We publish the data, not just the conclusion. 8 of our 13 studies offer the full computed table as a CSV download on the page, so you can check the analysis or disagree with it. A study without a row-level dataset gets no download link and claims none in its structured data.
  • We correct in public. Where we have published a figure wrongly we fix the figure, rewrite any analysis that rested on it rather than patching the number underneath it, and leave a dated correction note on the page.
  • We do not install or sell HVAC equipment, and we take no payment for placement, ranking or a favorable mention. Nobody buys a position on this site.

Data as of IRS and DOE pages read 2026-09-05; every source dated below. Authorship on this site is organizational: the analysis belongs to the desk rather than to a named individual, and we do not publish credentials we do not hold. Our editorial policy sets out how we source, date and correct what we publish.

Sources & retrieval dates

Energy Efficient Home Improvement Credit (Internal Revenue Code §25C) , Quoted directly: “The credit is allowed for qualifying property placed in service on or after Jan. 1, 2023, and before December 31, 2025.” The annual limits and the nonrefundability statement are quoted from the same page, which the IRS last reviewed on 2026-04-28. Retrieved September 5, 2026.
Residential Clean Energy Credit (Internal Revenue Code §25D) , Quoted directly: “The credit is not available for any property placed in service after December 31, 2025.” This is the section that covered geothermal heat pumps at 30% of cost with no dollar cap. Retrieved September 5, 2026.
US Department of the Treasury — “Treasury Releases New Data on American Consumer Energy Savings Under Inflation Reduction Act” , Counts of families claiming the §25C and §25D credits for tax year 2023, from returns filed and processed through May 23, 2024. Figures are published as bounds ("more than", "nearly"), so anything derived from them is a bound too. Retrieved September 5, 2026.
US Department of Energy — Home Energy Rebates state and territory allocations , The Inflation Reduction Act formula allocation of the two Home Energy Rebates programs to 50 states, the District of Columbia and five territories. Parsed directly from the table on DOE’s announcement page rather than transcribed. The allocation is the money apportioned to each jurisdiction, not money any household receives. Retrieved September 5, 2026.
US Department of Energy — Home Energy Rebates Programs , DOE’s own program page, carrying the current availability statement and the two statutory maximums. DOE directs residents to their State or Territory Energy Office rather than publishing a national lookup. Retrieved September 5, 2026.
EIA Residential Energy Consumption Survey 2020 , Public use microdata file v7. 18,496 responding households, weighted to represent 123.53 million occupied primary housing units. Standard errors from the 60 replicate weights supplied with the file. Retrieved September 4, 2026.
Public Law 119-21 , The statute that terminated §25C and §25D for property placed in service after December 31, 2025. Retrieved September 5, 2026.

National figures do not pay for your system

$65.01 per household is a scale check, not a plan. What your own replacement costs to run is arithmetic you can do today.

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