Universal Energy Service : Value to Households

This appendix sets out the annual value of the Universal Energy Service to households, by property category and household composition, and the net saving the service delivers once the above-tier premium is taken into account. It is a reference for distributional analysis and should be read alongside the methodology appendix, which holds the full design. All figures are at 2025 prices and at the 2026 cap unit rates (electricity 24.67p, gas 5.74p), with the free tier split 24:76 between electricity and heating.

The UK domestic housing stock

The roughly 28 million households in Great Britain fall into four categories for Universal Energy Service purposes, by EPC rating and grid connection. Each receives a different combination of benefits.

The E+ threshold captures about a tenth of the stock: predominantly solid-walled pre-1930 homes, uninsulated rural properties, and the F and G-rated stock. This population is heavily concentrated in the lowest income quintile and strongly correlated with fuel poverty.

Free-tier value by household composition and delivery mode

The standard tier is household-scaled, so its value rises with composition. The enhanced allowance is the full anchor for every EPC E+ household regardless of composition. The free-tier value depends on how the allowance is delivered: as a dual-fuel mix or an Exchequer voucher (heating at the gas rate), or wholly as electricity for all-electric homes.

The dual-fuel and voucher routes give the same value, because the voucher simply delivers the heating portion (76% of the tier) at the gas rate. The all-electric value is far higher because electricity is roughly four times the gas unit rate, so the same kWh allowance is worth correspondingly more to an all-electric home. These are gross free-tier values, before any premium on above-tier consumption and before the separate standing-charge saving.

Value by household category

Category 1, EPC E or below, grid-connected (~2.2 million). Enhanced allowance (the full anchor, 13,800 kWh) plus standing-charge elimination. Concentrated in the lowest income quintile and the most energy-vulnerable of the grid-connected stock.

The enhanced allowance is conditional and is withdrawn if the household declines a government-funded retrofit offer, reverting to the Category 2 standard tier.

Category 2, EPC A to D, grid-connected (~21.8 million). Standard household-scaled tier plus standing-charge elimination. The largest category, spanning new-build (A to B), recently insulated stock (C), and the median home (D), across all income quintiles.

For a household consuming around its tier, the total bill is broadly unchanged from today: the free tier is offset by the premium on above-tier units, so the durable net benefit in this category is principally the standing-charge saving plus any consumption the household brings below its tier. The net saving is quantified under Net benefit to the average household below.

Category 3, off-grid heating, oil, LPG or solid fuel (~1.7 million, of which ~0.5 million are EPC E+). The electricity portion on the meter plus a fuel voucher for the heating portion, plus the electricity standing-charge saving only (they pay no gas standing charge).

Off-grid households elect annually between the voucher (default) and converting the whole allowance to electricity; once heating is electrified the electricity option is worth more, which is the self-selecting incentive to transition.

Category 4, off-grid electric, storage and direct electric (~2.3 million). All energy is electricity, so the whole tier is delivered on the meter, plus the electricity standing-charge saving.

Storage-heater homes are among the most fuel-poor in the country and the all-electric allowance delivers them the largest absolute saving of any category. In an EPC E+ property the enhanced anchor of 13,800 kWh means even high-consuming homes pay little or no premium.

Net benefit to the average household

The values above are gross: the free-tier entitlement and the standing-charge saving, before the premium a household pays on consumption above its tier. The durable net benefit is lower, and it differs between the typical household and the average household of a cell.

Net usage saving is the bill a household would pay at the cap less the bill it pays under the service. It is largest for a household consuming at its tier, which takes the whole allowance free and pays no premium, and falls away on either side: a household below its tier had a smaller bill to remove, and one above its tier pays the multiplier on the excess. The saving is therefore a tent peaking at the tier, so the value at the typical (median) household overstates the mean across the cell, because the right tail of heavier users pays the premium and pulls the average down.

Quantifying the mean requires the within-cell spread of consumption, measured here from the NEED 2025 anonymised microdata (about 34,000 gas-heated dual-fuel homes, 2023). Total household consumption within a dwelling-size band has a coefficient of variation of about 0.50, robust to further conditioning on property type and EPC (0.48), against a whole-stock figure of 0.58 that reproduces the dispersion in the published NEED summary. The above-tier multiplier in use is 3.37: the revenue-neutral 3.21 that funds the free tier, plus 0.16 that recovers the 20% supplier portion of the standing charge (about £2.08B) through above-tier consumption, the other 80% being the Exchequer's network payment. Applying a lognormal spread at CV 0.50 to each cell, with the surface consumption as the median, gives the mean-household net saving. The two tables below show the same cells on the typical basis and the mean basis; columns are the UES income quintiles.

Typical-household net usage saving (£/yr), by household type and income quintile

Mean-household net usage saving (£/yr), by household type and income quintile (within-cell CV 0.50)

Both tables are usage saving only, before the standing-charge saving. The all-in benefit adds the standing-charge saving on top, £328 dual-fuel or £200 electricity-only. The two columns marked Q4 and Q5 here are the raw UES income quintiles; the P2030 presentation collapses these (Q1 and Q2 from UES Q1, then UES Q2, Q3, and the average of UES Q4 and Q5).

The gap between the tables is the point. For a lone parent with one child on a middle income the typical usage saving is about £983, but the mean across that cell is about £157, with the standing-charge saving taking the average all-in benefit to about £467. Across the standard grid-connected category the mean net usage saving runs from roughly £30 to £470 by household type and income, below the gross free-tier values above, and is lower or negative for multi-adult households and the upper quintiles of larger families.

For below-tier households the net bill saving understates the welfare gain, because the unused headroom up to the tier is warmth they can now afford at no cost. That gain is real but it is in-kind and depends on take-up, so it sits alongside the net figure as commentary, not as an addition to it. The net saving remains the measure used in the distributional tables.

Where winners outnumber losers

A household is a winner if its bill falls under the service. On usage alone that holds while consumption stays below about 1.42 times the tier, the break-even at which the above-tier premium just cancels the free allowance. This is a wider group than the households sitting below their tier, since a household can be up to 42% above its tier and still come out ahead. Applying the within-cell lognormal at CV 0.50 to each cell, the share of the cell below break-even is the winner share.

Winner share, usage only (% of cell with a net usage saving), by household type and income quintile

Winners are the majority almost everywhere: about 72% of all households win on usage alone. The cells where losers outnumber winners are multi-adult households from the second quintile upward, partnered pensioners in the top quintile, and multi-adult-plus-one in the top quintile. Adding the standing-charge saving lifts every cell and takes the all-in winner share to about 77%, leaving the upper-quintile multi-adult households below half. The gradient runs the intended way: winner shares are highest in the low quintiles and for families, lowest for the heavy-using multi-adult and high-income childless households the multiplier is designed to reach.

Summary table for distributional analysis

The weighted-average free-tier value across the stock is about £1,200, and about £1,510 including the standing-charge saving. These are gross entitlement values at the tier, the most any household of each type can save, not the average net benefit. The average household saves less once the above-tier premium is netted off, as set out under Net benefit to the average household; the gross figure is the right measure of the entitlement and of available warmth for below-tier homes, the net figure the right measure of the bill change for those at or above their tier. The average is dominated by the large EPC A to D category, with the off-grid electric and enhanced-allowance categories pulling it upward. The programme delivers materially more value to the most vulnerable categories (off-grid electric, EPC E+) than to the standard grid-connected majority.

Notes for the distributional model

Standing charge and free tier are scored separately. The standing-charge saving (£328 dual-fuel, £200 electricity only) is universal and certain. The free-tier value is subject to take-up: households above their tier pay premiums that offset part of it.

Typical and mean are not the same, and the per-cell figures elsewhere are typical. The net-benefit figures on the Tier & winners sheet are for the typical (median) household of each cell. Because the saving peaks at the tier, the mean across a cell is materially lower; the mean-household figures use the measured within-cell dispersion (CV 0.50, NEED 2025) and should be the basis for any "average household" statement. The standing-charge saving in the mean table should be applied at the category rate, £328 dual-fuel or £200 electricity-only, not a single flat figure.

The free-tier value is household-scaled, not flat. Within each category the value rises with composition, from about £937 for a single household to about £1,362 for a larger family on the dual-fuel route, and the enhanced allowance is the full anchor for every EPC E+ home. The distributional model should weight by composition within category rather than applying a single per-category value.

The redistribution is mostly within income groups, not between them. As set out in the methodology, domestic energy use varies only about 1.75-fold from the lowest to the highest income quintile, not the three to fivefold gap often assumed, so the between-quintile transfer through the consumption cross-subsidy is small. This is now measured rather than assumed: within-cell total consumption has a coefficient of variation of about 0.50 (NEED 2025 microdata, within dwelling-size band), far wider than the 1.75-fold gap in mean consumption between the lowest and highest income quintiles. The dispersion within each cell dwarfs the difference between cells, which is why the cross-subsidy runs mostly between higher and lower users of similar households rather than between rich and poor. The programme's progressivity therefore rests chiefly on the flat free allowance and the flat standing-charge saving each being worth proportionally more to lower-income households, and on the heavy-using minority across all types paying the multiplier, rather than on a rich-to-poor transfer through differential consumption.

The enhanced allowance applies to about 2.7 million E+ homes, not the broad middle. It is targeted at the worst tenth of the stock; the remaining homes receive the standard household-scaled tier. Its per-household impact is large but its aggregate weight is modest. The net analysis above covers the standard household-scaled tiers; the enhanced allowance is a separate and more generous case, where most E+ homes sit below their high anchor and the net benefit approaches the gross value.

All figures at 2025 prices and 2026 cap unit rates. Standard tiers are household-scaled on a 13,800 kWh anchor (66% base plus 15% per child to two); the enhanced allowance is the full anchor. The free tier is split 24:76 between electricity and heating. Net savings tables are computed against the cap-rate counterfactual, with within-cell dispersion of CV 0.50 measured from the NEED 2025 anonymised microdata; columns are the UES income quintiles.