Maine

45% by 2030 | Carbon neutral by 2045

Relative to 1990 levels

Maine Won't Wait 2.0

The 1990-2019 Greenhouse Gas Inventory was published in July 2022.

Maine Climate Council

"Frontline communities" are defined as those people and communities that experience the consequences of climate change first and to a greater degree than others.

The Department of Environmental Protection must also define "environmental justice populations," taking into consideration, at a minimum, median household income, race, ethnicity, and English language proficiency.

Equity Subcommittee of the Maine Climate Council

Efficiency Maine Green Bank

The Regional Greenhouse Gas Initiative (RGGI) covers the electricity sector.

80% renewable energy by 2030 | 100% by 2050

Maine Energy Plan 2025 and Maine Pathways to 2040: Analysis and Insights

300 megawatts (MW) of energy storage by 2025 and 400 MW by December 31, 2030

Maine received a C grade from Freeing the Grid.

Requires 100% renewable electricity by 2050, and does not include energy derived from coal in its definition of renewable electricity.

The statewide energy code for residential construction is 2015 IECC.

The statewide energy code for commercial building construction is 2015 IECC and ASHRAE 90.1-2013.

The Maine Uniform Building and Energy Code (MUBEC) Stretch Code incorporates 2021 IECC and certain appendices.

Maine’s Appliance Efficiency Standards apply to 8 products.

Electric utilities are required to achieve energy savings equivalent to 175,115 megawatt-hours (MWh) in 2023, 143,993 MWh in 2024, and 145,035 MWh in 2025.

Gas utilities are required to achieve energy savings equivalent to 135,389 million British thermal units (MMBtu) in 2023, 78,776 MMBtu in 2024, and 77,907 MMBtu in 2025.

Maine has enacted residential and commercial PACE-enabling legislation and has active programs.

Maine LEV Standards

Model Year (MY) 2025: 22% of new passenger vehicle sales are ZEVs.

Efficiency Maine's Electric Vehicle (EV) Incentive Program offers point-of-sale rebates for new EVs: up to $2,000 for battery EVs and $1,000 for plug-in hybrid EVs. Income-qualifying drivers could receive a rebate between $2,500 and $7,500, depending on the vehicle type.

As of November 2024, the program is only offering rebates for low-income Mainers.

50% of the state’s new light-duty vehicles are plug-in hybrid or ZEVs by 2025 | 100% are plug-in hybrid or ZEVs by 2030

The state prohibits the use of certain HFCs in specific stationary refrigeration and air-conditioning products that are manufactured or used in Maine.

The Maine Healthy Soils Program incentivizes healthy soils best practices, and the legislation calls for the program to equitably distribute incentives to beginning and socially disadvantaged farmers and ranchers.

The Maine Healthy Soils Program promotes healthy soils best practices by facilitating peer learning opportunities, education, and outreach.