Case Study

Case Study

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

Marlowe Starling

Case Study

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

Jane Margolies

Case Study

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

Jane Margolies

Case Study

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

Myriam Vidal Valero

Case Study

What are we going to do with this roof?

The story of how one Brooklyn condo board bonded together over solar energy — after much deliberation

Meg Duff