Energy Savings

Between FY11 and FY16, the City installed energy retrofits at close to 35 facilities, made process and equipment improvements at the Walter J. Sullivan Water Purification Facility, and converted streetlights to LED technology.  The blue portions of the charts below show municipal energy use and spending; the red portions (“avoided” use and costs) show how much more energy the City would have consumed and dollars spent per year had it not implemented these measures.

Note: The charts below includes electricity, natural gas, heating oil, and vehicle fuels presented in MMBtu (one million British thermal units).

Avoided Energy Costs Chart

Avoided Energy Costs Chart

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Dept of Public Works

147 Hampshire St
Cambridge MA 02139


Hours of Service

Monday: 8:30am-8:00pm
Tuesday-Thursday: 8:30am-5:00pm
Friday: 8:30am-12 noon
24 Hour emergency 617.349.4860


Tuesday & Thursday: 4:00pm-7:30pm
Saturday: 9:00am-4:00pm

Owen O'Riordan