| Alabama | None | None |
| Alaska | None | None |
| Arizona | None | $1,000 |
| Arkansas | Up to $3,000 | None |
| California | None | Up to 30% of total system cost |
| Colorado | None | Up to $1,000 |
| Connecticut | Up to $2,000 | Up to 26% of total system cost |
| Delaware | Up to $3,500 | Up to $5,000 |
| Florida | None | Up to $1,000 |
| Georgia | Up to $5,000 | None |
| Hawaii | Up to $5,000 | Up to 35% of total system cost |
| Idaho | None | Up to $1,000 |
| Illinois | Up to $10,000 | Up to 25% of total system cost |
| Indiana | Up to $5,000 | None |
| Iowa | Up to $5,000 | Up to 18% of total system cost |
| Kansas | None | Up to $1,000 |
| Kentucky | None | Up to $1,000 |
| Louisiana | None | Up to 50% of total system cost |
| Maine | Up to $2,000 | Up to 40% of total system cost |
| Maryland | Up to $5,000 | Up to 26% of total system cost |
| Massachusetts | Up to $1,000 | Up to 15% of total system cost |
| Michigan | Up to $2,500 | Up to 25% of total system cost |
| Minnesota | Up to $5,000 | Up to 10% of total system cost |
| Mississippi | None | Up to $5,000 |
| Missouri | Up to $12,500 | Up to 25% of total system cost |
| Montana | Up to $500 | None |
| Nebraska | Up to $4,500 | None |
| Nevada | Up to $1,000 | Up to 25% of total system cost |
| New Hampshire | Up to $1,000 | Up to 25% of total system cost |
| New Jersey | Up to $4,000 | Up to 26% of total system cost |
| New Mexico | Up to $6,000 | Up to 10% of total system cost |
| New York | Up to $5,000 | Up to 25% of total system cost |
| North Carolina | Up to $6,000 | Up to 35% of total system cost |
| North Dakota | Up to $5,000 | None |
| Ohio | Up to $1,250 | Up to 30% of total system cost |
| Oklahoma | Up to $5,000 | Up to 50% of total system cost |
| Oregon | Up to $2,500 | Up to $6,000 |
| Pennsylvania | Up to $1,000 | Up to $500 |
| Rhode Island | Up to $1,000 | Up to 30% of total system cost |
| South Carolina | None | Up to 25% of total system cost |
| South Dakota | None | None |
| Tennessee | None | Up to $1,000 |
| Texas | None | Up to $2,500 |
| Utah | None | Up to $1,600 |
| Vermont | Up to $2,500 | Up to 26% of total system cost |
| Virginia | Up to $3,500 |