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A clean energy future for this Queens public development is… hanging out the window?

NYCHA, the city’s largest resi­den­tial land­lord, has set ambi­tious goals to reduce the carbon emis­sions of its build­ings. Its test run of window-unit heat pumps in one Queens devel­op­ment offers a promising pathway

Rent-stabilized tenants fight for an energy efficient retrofit — and win

Demands for effi­ciency pay off for tenants in Brooklyn’s Crown Heights in the form of brand-new heat pumps

In the South Bronx, this co-op sets a high standard

How one working-class coop­er­a­tive took an incre­mental approach to improving effi­ciency, and found savings along the way

Pilot light: HDFC co-op pioneers a new strategy for air-source heat pumps

Inside the pilot program that helped this LMI Manhattan co-op lean less heavily on #2 heating oil

How do window-unit heat pumps work?

Behind the new heat pumps that are helping to decar­bonize NYCHA’s Woodside housing

All-electrics aren’t all created equal

What’s right for your building — heat pumps, or elec­tric resis­tance heaters?

Real Time Energy Management (RTEM) tech offers real savings opportunities

Meet the NYSERDA-backed tech that saved Sherman Terrace more than $53,000 on energy in one year

Controlling for comfort — and for cost

New air-source heat pumps offer resi­dents an increased level of control, but also shift who’s paying for the heat

NYCHA makes a market: Here’s how

To develop a heat pump that didn’t yet exist, New York’s public agen­cies put up millions in invest­ment, then chal­lenged the market to develop a solu­tion — a strategy that’s seen success before

Tenant power heats up

How one rent-stabi­lized building orga­nized to demand heating upgrades

“We have to be very smart with how we are using money.”

How this South Bronx co-op maxi­mized impact without sacri­ficing budget

Sealing in the benefits of energy efficiency

Project designers explain why air sealing is a crucial compo­nent of any energy effi­ciency project

Small heat pump, big difference

Residents Maria Lopez and Tammy Reyes on the 2023 NYCHA heat pump pilot that brought more comfort and control into their homes

The birth of an organizer

Anna Nemetz’s journey from freezing renter to tenant leader

Getting under the hood with Derek K. Jones

What drove this South Bronx coop­er­ator to lead his building toward solar and more

Tips from Tom Sahagian

An energy aficionado offers advice on how to make the switch to more renew­able technology

“You have to break it down so that it can be understood by a third grader”

A Q&A with Martin Robertson, a Brooklyn-based facil­i­ties manager, on how to push for progress in a big building

“If we could do it, anyone could”

A Q&A with two coop­er­a­tors from one of New York City’s orig­inal self-managed Finnish co-ops, who coor­di­nated efforts to tune up their ancient boiler and patch up leaks in the walls

What is Local Law 97?

Skylight’s all-in-one explainer of New York City’s land­mark building decar­boniza­tion law — and what it means for the city’s resi­den­tial buildings.

“Read the F*cking Manual!”

A Q&A with Chris McGinnis, a former IBM worker and long­time co-op resi­dent who made it his mission to learn how build­ings work so he could make his own more efficient