A think tank producing rigorous, accessible data for advocates, policymakers, & the public.
1. Review subsidy design
2. Step through 3 sample households
3. High level outcome results
4. Review total program costs
5. Questions about mandate
LMI
(Electrification + Weatherization)
Medium Income
(Electrification)
Medium Income
(Insufficient subsidy)
Income | $65k |
Occupants | 1 |
County | Kings |
% AMI | 80 % |
Type | Single family |
Size | 1,675 sqft |
Current heat | Natural Gas |
Annual Savings no weatherization |
Total Heat Pump cost |
Annual Savings with weatherization |
Total Heat Pump + weatherization cost |
Unsubsidized payback period |
Income-based subsidy |
IRA discount |
Option 1: include replacement furnace cost |
Out of pocket |
B4B subsidy |
Payback period |
Option 2: exclude replacement furnace cost |
Out of pocket |
B4B subsidy |
Payback period |
-$28 (bills go up) |
$15,420 |
$658 |
$16,702 |
12 years |
100% |
$3,800 |
None |
$12,902 |
None |
$3,916 |
$8,986 |
7 years |
Income | $200K |
Occupants | 4 |
County | Queens |
% AMI | 170 % |
Type | Multifamily |
Size | 2,115 sqft |
Current heat | Natural Gas |
Annual Savings no weatherization |
Total Heat Pump |
Annual Savings with weatherization |
Total Heat Pump + weatherization cost |
Unsubsidized payback period |
Income-based subsidy |
IRA discount |
Option 1: include replacement furnace cost |
Out of pocket |
B4B subsidy |
Payback period |
Option 2: exclude replacement furnace cost |
Out of pocket |
B4B subsidy |
Payback period |
$1,973 |
$23,750 |
$3,118 |
$26,369 |
12 years |
41% |
$2,600 |
$12,475 |
$8,670 |
6 years |
$14,340 |
$6,800 |
7 years |
Income | $150k |
Occupants | 1 |
County | Kings |
% AMI | 180% |
Type | Multifamily |
Size | 1,140 sqft |
Current heat | Natural Gas |
Annual Savings no weatherization |
Total Heat Pump cost |
Annual Savings with weatherization |
Total Heat Pump + weatherization cost |
Unsubsidized payback period |
Income-based subsidy |
IRA discount |
Option 1: include replacement furnace cost |
Out of pocket |
B4B subsidy |
Payback period |
Option 2: exclude replacement furnace cost |
Out of pocket |
B4B subsidy |
Payback period |
$218 |
$29,340 |
$1,866 |
$31,043 |
16 years |
33% |
$3,800 |
$18,253 |
$8,990 |
10 years |
$19,586 |
$7,656 |
11 years |
For those who meet a 7 year payback
If there is a mandate,
costs increase ~ $660 M a year
$16.5 B over 25 years
55 % of Multifamily households would receive a window unit heat pump
Saving an average of $2,230 per household upgrade
Subsidized heat pumps can be paid back with energy savings in < 7 years
Will choose weatherization if
Will choose if bills would increase without repairs and weatherization
Annual savings are not even to payback costs in < 7 years
*increasing subsidy amount can shrink this group
Heat pumps increase energy bill
Should this group be exempt from mandate?
Median low income household
HH income - $90k
(70 % of AMI)
LMI
(Electrification + Weatherization)
1,140 sqft mutli-family
Total upgrade cost cheaper with weatherization
County = New York/Manhattan
TOTAL COST : $17,700
YEARLY SAVINGS: $786
100% Subsidy
HH income - $200k
(170 % of AMI)
2,115 sqft mutli-family
Electrification alone would lower bills
Medium Income
(Electrification)
County = Queens
TOTAL COST : $23,750
YEARLY SAVINGS: $1,973
41% Subsidy
HH income - $150k
(180 % of AMI)
1,140 sqft mutli-family
Current subsidy scheme is insufficient
County = Kings
Medium Income
(Insufficient subsidy)
TOTAL COST : $29,340
YEARLY SAVINGS: $220
33% Subsidy