Co-ops

How do you replace 400 windows? One step at a time.

Behind the scenes in one co-op’s plan­ning process for a major façade upgrade

In Queens, a culture-driven approach to energy efficiency changed everything

How a historic Jackson Heights co-op secured its grade A energy rating through incre­mental upgrades and consis­tent share­holder discourse

The value of a building wellness check

An energy audit team talks through the bene­fits of knowing where your building stands

“A nice long runway”

An energy audit sets a ten-year path for compli­ance and savings at a Jackson Heights co-op

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

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

Getting under the hood with Derek K. Jones

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

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

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

“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

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

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

Sealing in the benefits of energy efficiency

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

Tips from Tom Sahagian

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

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.

From nightclubs to boiler rooms

Get to know Eric Einstein, the co-op member behind the International Tailoring Building’s HVAC revamp

Heat pumps transform former factory lofts into a temperature-controlled oasis

The International Tailoring Building set out to make their spaces more comfort­able, and met LL97 regu­la­tions along the way

Hybrid heating, modern solutions

Ecosystem engi­neers utilize both heat pumps and a gas boiler to heat Manhattan co-op

Installing heat pumps in a fully-occupied co-op

How this Manhattan building completed a major energy upgrade without disrupting resi­dents’ lives

“Everyone’s sick of hearing about heat pumps from me!”

A Q&A with Kathryn DeFehr, Brooklyn archi­tect and co-op resi­dent, on how to sway a co-op board

A facelift into an energy efficient future

An Upper East Side co-op replaces white-brick façade with porce­lain tile, fixing leaks and improving insulation

Betting on a better Building Management System

An auto­mated program to monitor building systems helps Manhattan co-op inch toward Local Law 97 compliance

How Stefan Unger got “married to the project”

This co-op member became an expert in rain­screen cladding by leading his build­ing’s reno­va­tion project

Out of the china cabinet and onto the façade

Cutting-edge porce­lain tiles offer dura­bility and low main­te­nance for Manhattan co-op

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201 East 79th Street
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205 Hicks Street
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35–06 88th Street
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637–661 41st Street
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