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(1) In general
A HOMES rebate program carried out by a State energy office receiving a grant pursuant to this section shall provide rebates to homeowners and aggregators for whole-house energy saving retrofits begun on or after August 16, 2022 , and completed by not later than September 30, 2031 .
Subject to paragraph (3), under a HOMES rebate program, the amount of a rebate shall not exceed—
(A) for individuals and aggregators carrying out energy efficiency upgrades of single-family homes— (i) in the case of a retrofit that achieves modeled energy system savings of not less than 20 percent but less than 35 percent, the lesser of— (I) $2,000; and (II) 50 percent of the project cost; (ii) in the case of a retrofit that achieves modeled energy system savings of not less than 35 percent, the lesser of— (I) $4,000; and (II) 50 percent of the project cost; and (iii) for measured energy savings, in the case of a home or portfolio of homes that achieves energy savings of not less than 15 percent— (I) a payment rate per kilowatt hour saved, or kilowatt hour-equivalent saved, equal to $2,000 for a 20 percent reduction of energy use for the average home in the State; or (II) 50 percent of the project cost;
(B) for multifamily building owners and aggregators carrying out energy efficiency upgrades of multifamily buildings— (i) in the case of a retrofit that achieves modeled energy system savings of not less than 20 percent but less than 35 percent, $2,000 per dwelling unit, with a maximum of $200,000 per multifamily building; (ii) in the case of a retrofit that achieves modeled energy system savings of not less than 35 percent, $4,000 per dwelling unit, with a maximum of $400,000 per multifamily building; or (iii) for measured energy savings, in the case of a multifamily building or portfolio of multifamily buildings that achieves energy savings of not less than 15 percent— (I) a payment rate per kilowatt hour saved, or kilowatt hour-equivalent saved, equal to $2,000 for a 20 percent reduction of energy use per dwelling unit for the average multifamily building in the State; or (II) 50 percent of the project cost; and
(C) for individuals and aggregators carrying out energy efficiency upgrades of a single-family home occupied by a low- or moderate-income household or a multifamily building not less than 50 percent of the dwelling units of which are occupied by low- or moderate-income households— (i) in the case of a retrofit that achieves modeled energy system savings of not less than 20 percent but less than 35 percent, the lesser of— (I) $4,000 per single-family home or dwelling unit; and (II) 80 percent of the project cost; (ii) in the case of a retrofit that achieves modeled energy system savings of not less than 35 percent, the lesser of— (I) $8,000 per single-family home or dwelling unit; and (II) 80 percent of the project cost; and (iii) for measured energy savings, in the case of a single-family home, multifamily building, or portfolio of single-family homes or multifamily buildings that achieves energy savings of not less than 15 percent— (I) a payment rate per kilowatt hour saved, or kilowatt hour-equivalent saved, equal to $4,000 for a 20 percent reduction of energy use per single-family home or dwelling unit, as applicable, for the average single-family home or multifamily building in the State; or (II) 80 percent of the project cost.
On approval from the Secretary, notwithstanding paragraph (2), a State energy office carrying out a HOMES rebate program using a grant awarded pursuant to this section may increase rebate amounts for low- or moderate-income households.
A State energy office that receives a grant pursuant to this section may use not more than 20 percent of the grant amount for planning, administration, or technical assistance related to a HOMES rebate program.
The Secretary shall develop and publish guidelines for States relating to residential electric and natural gas energy data sharing.
Activities carried out by a State energy office using a grant awarded pursuant to this section shall not be subject to the expenditure prohibitions and limitations described in section 420.18 of title 10, Code of Federal Regulations.
A rebate provided by a State energy office under a HOMES rebate program may not be combined with any other Federal grant or rebate, including a rebate provided under a high-efficiency electric home rebate program (as defined in section 18795a(d) of this title ), for the same single upgrade.