Energy efficiency
These startups are using AI to cut energy waste from buildings
Buildings use — and waste — an enormous amount of energy. A growing number of startups are trying to wield buzzy AI technologies to fix this problem.
By Jeff St. John .
Energy efficiency
Energy efficiency
Weatherization can keep you cool this summer — and warm next winter
Insulating, weatherstripping, and sealing your home could make it much more energy efficient, keeping you comfy for less money while helping out the grid.
By Alison F. Takemura .
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Utilities
Duke Energy will cover upfront costs of home efficiency upgrades
In what could be the largest such effort from a big investor-owned utility, the program will recoup costs over time via low on-bill payments from customers.By Elizabeth Ouzts .
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Heat pumps
New plan aims to quadruple heat-pump adoption in 25 states
The pledge, which covers 55% of the population, calls for accelerating home decarbonization by deploying 20 million heat pumps by 2030.By Jeff St. John .
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Carbon-free buildings
NYC’s big building-decarbonization law faces its first major test
Landlords and climate activists are sparring over the future of Local Law 97 — the country’s most ambitious citywide mandate to clean up building emissions.By Jeff St. John .
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Heat pumps
Heat pumps outperform boilers and furnaces — even in the cold
Some utilities and fossil-fuel interests like to say heat pumps don’t work in the cold. A new study provides yet more evidence to debunk that myth.By Alison F. Takemura .
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Energy efficiency
Redaptive lands $125M to expand no-money-down building efficiency
“Energy-as-a-service” providers like Redaptive take on the upfront cost of building energy upgrades — and use sensors and data to prove the work pays off over time.By Jeff St. John .
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Energy efficiency
Why efficient buildings are key to decarbonizing the power grid
New data shows that efficient, grid-responsive buildings would make a zero-carbon grid $100B cheaper per year — if utilities and policymakers can act in time.By Jeff St. John .
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Energy efficiency
North Carolina kills effort to make its building code energy-efficient
State Republicans have banned residential building-code updates until 2031, a move that will increase energy costs and make it harder to decarbonize buildings.By Jeff St. John .
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Energy efficiency
Inside the IRA’s historic, high-stakes investment in energy efficiency
The Inflation Reduction Act made an $8.8B investment in home energy efficiency. Now, it’s up to states to figure out how to put the money into practice.By Jeff St. John .
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Electrification
Your cheat sheet to the climate law’s consumer incentives
The Inflation Reduction Act has a bevy of programs to help you install everything from a heat pump to better insulation. Here’s how to navigate it all.By Alison F. Takemura .
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