Energy Efficiency Archives

Aug 10, 2026

Court Orders Markley to Pause Lowell Data Center Expansion

With this pause, the court recognized Lowell residents’ concerns and has given the community some protection from further expansion while that fight continues.

A residential street in Lowell lined with closely spaced homes, parked cars, utility poles, and overhead wires leads toward the Markley data center. The facility’s massive, windowless black exterior rises above and behind the neighborhood, dwarfing the surrounding houses.

Aug 04, 2026

Fighting the Unchecked Expansion of Lowell’s Markley Data Center

In Massachusetts’ first lawsuit challenging a data center expansion, Lowell residents are fighting a state permit that would allow more diesel pollution near homes, parks, and a school. The case also challenges a process that let the company operating the facility move ahead before residents had a fair chance to be heard.

Dec 22, 2025

Conservation Matters: Winter 2025

CLF is on the ground and in the courts, sustaining our clean energy progress. The stakes could not be higher. CLF will not relent until a just, affordable, and sustainable energy future becomes reality for all.

Magazine cover showing a small yellow cut-out house wrapped in a gray scarf. The house is not the actual size. Text reads Conservation Matters, a journal of Conservation Law Foundation. What's Fueling Your High Energy Bills.

Dec 19, 2025

Connecticut Coalition for Climate Action Applauds $18 Million in Climate Investments

The programs this investment funds are critical to slashing bills and emissions.

Connecticut state house building where senators and representatives meet to discuss legislative issues.

Aug 13, 2025

What Is Energy Efficiency?

Investing in more efficient technology to power our homes and businesses now can save us money on our utility bills in the long run.

Aug 05, 2025

Clean Steam Ahead: Boston Pioneers Innovative Heating Tech

“eSteam™” is Vicinity Energy’s latest innovation in district heating, which involves heating or cooling a collection of buildings connected to one central source.

Vicinity Energy's Kendall Square plant sits adjacent to Charles River

Apr 07, 2025

Eight Earth Day Activities to Make an Impact

Learn some of the most impactful activities you can do this Earth Day.

Feb 28, 2025

Mass Save Budget Cuts Undermines Energy Affordability

Since its inception in 2010, Mass Save has delivered more than $37 billion in benefits to consumers statewide.

Heat pumps on the outside of a grey, wooden home while it is sunny outside.

Feb 27, 2025

Rolling Back Environmental Justice Regulations: Can They Do That?

The Trump administration is working to roll back environmental justice protections like Justice40 and Title VI – but can they really do that? Undoing these policies won’t be easy, but their strategy goes beyond legal challenges. Learn how communities can fight back against these attacks on clean air, safe water, and environmental equity.

A wooden gavel held by a hand is poised above a small globe balancing on a judge's sound block, symbolizing the intersection of environmental justice and legal decisions. The background is blurred, emphasizing the focus on the gavel and Earth.

Dec 09, 2024

Clean Heat

If New Englanders hope to address the climate crisis, more of us must upgrade our old oil boilers and gas furnaces to electric heat. Our buildings are responsible for nearly a third of all the carbon pollution overheating our planet.