A Connecticut city stood 1,920 solar panels on a sealed garbage hill where no steel post can go in, because a driven pile would punch through the lid keeping decades of trash away from the water, so c

Key Points:

• New Haven, Connecticut, has transformed its capped landfill at 260 Middletown Avenue into a solar power site with 1,920 panels that have been generating electricity since July 9, providing about 1.4 million kilowatt hours annually, enough to power roughly 200 homes.
• The city leases the landfill to Greenskies Clean Energy, which built and operates the array, earning New Haven $6,000 per month over a 20-year contract, totaling approximately $1.4 million without any city investment.
• Due to environmental constraints, the solar panels are mounted on ballast systems rather than driven piles to avoid penetrating the landfill’s engineered cap, a method consistent with federal guidelines for solar installations on capped landfills.
• The project was completed in just over ten months despite challenging winter conditions, showcasing a rapid and cost-effective approach compared to larger stalled projects like Houston’s Sunnyside landfill solar farm.
• New Haven plans to expand solar installations with additional canopies over city school parking lots and possibly more panels on the landfill, exemplifying how underutilized capped landfills can become valuable solar real estate.