A new program launched by Boston Mayor Michelle Wu connects Boston residents with energy-efficient upgrades for homes, rentals and small businesses.

The Boston Energy Saver program offers no-cost consultations for Boston residents and business owners, connecting them with resources like rebates and low-cost financing for energy upgrades, building weatherization, heat pumps, induction stoves and energy bill check-ups that prevent overcharging.

The city plans to set aside $300 million for these energy-saving benefits, install 5,000 heat pumps and weatherize 10,000 buildings — all by 2027. Through a Mass Save rebate, residents could save up to $10,000 or more on heat pump and cooling system installation, while weatherization updates could provide up $380 annually in energy bill payments.

Wu first introduced the program in her State of the City address. The new city service represents a collaboration between Eversource, National Grid and local nonprofits.

“As winter approaches, energy costs to keep families warm become even more of a financial burden,” said Wu in a press release. “I’m proud to launch the Boston Energy Saver Program — a one-stop shop for residents, families and small businesses to unlock resources to lower their costs with energy efficiency upgrades. Through our partnership with Eversource and National Grid, we are cutting energy costs and reducing reliance on fossil fuels for a more affordable and resilient future.”