National Grid Headquarters – Waltham
Located on the roof of National Grid’s US headquarters, the Waltham site generates approximately 5% of the building’s energy needs. It was completed in July 2009 and has been producing power to help the Platinum-level LEED certified building minimize its environmental impact.
The project is estimated to save approximately 9.9 tons of sulfur dioxide, 3.6 tons of nitrous oxides, and 3,900 tons of carbon dioxide over a 30-year period.
- Size: 225 kW DC
- 736 solar panels
- Enough power for 29 average US homes