Archive for the ‘Lighting’ Category

Reminder: Light Bulb Swap on Saturday!


If you are a Cambridge resident, this is a reminder to come swap up to three of your incandescent or CFL light bulbs* for free LED replacements this Saturday, Dec. 10, at the Cambridge Winter Farmer’s Market at 5 Callender St, from 10am-2pm! We will also have a pop-up store with heavily discounted LEDs for all of your other lighting needs.

*The swap is limited to A19 and BR30 bulbs.

This event is part of the City’s 100% LED Campaign that encourages residents to change over their lighting to LEDs, which use six times less energy. Please note that the bulb swap is limited to Cambridge residents and while supplies last.

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City Offers Limited-Time Incentives to Go 100% LED!

It’s about to get a whole lot easier to upgrade your lights and save money and energy! The City’s Cambridge Energy Alliance is partnering with Eversource to launch the “100% LED Cambridge” campaign, which offers limited-time specials on LED light bulbs for Cambridge residents. The campaign encourages residents to upgrade 100% of their home lighting to LEDs, which use six times less energy than older bulbs.



From now until November 26th, residents can go to to get special pricing that is available to Cambridge residents only. Customers can also get discounted shipping while supplies last. Not sure what bulb to get? See our guide at



The 100% LED campaign is one of the city’s initiatives to win the Georgetown University Energy Prize, a nationwide competition among

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Money Saving Light Bulbs

During the summer of 2014 several high school students interned at the Cambridge Energy Alliance helping with canvassing and outreach across Cambridge. The interns also wrote a few blogs on topics they were interested in related to energy efficiency and solar power. The following is one of their blogs.  


Today, unfortunately, money is on the minds of many people. This blog offers a simple and straightforward strategy to save money, and energy, by using different types of light bulbs. Currently in the US most people use incandescent light bulbs in their households. However, slowly the tide has turned to Compact Fluorescent Lamps (CFLs) bulbs, which offer greater service and economic satisfaction. But what is it that makes these light bulbs so different? Of course they all have differences in their structure, … [view entry]

Report Shows Schools’ Environmental Progress

Cambridge Public Schools published its 2012 Sustainability Year-In-Review this summer and celebrated several environmental successes. The report outlines the schools’ environmental progress and accomplishments in energy reduction, recycling, eco-friendly products and other green topics.

Over the past two years, multiple energy-efficiency projects have been implemented. The result is a net projected annual savings of $295,738 for the whole school district; 618,313 kWh of electricity savings; and 29,863 therms. Projects included:

  • the installation of a high-efficiency condensing boiler at the Longfellow School Building
  • high-efficiency lighting and occupancy sensors at the Peabody School, Kennedy-Longfellow School, Baldwin School, Haggerty School, Morse School, Solomon Garage, and High School Field House
  • the installation of Direct Digital Control systems at nine schools
  • additional energy upgrades

But energy isn’t the only area of improvement. Custodians now use metered green … [view entry]

Energy Efficient Lighting Upgrades for City Buildings

The City has taken another exciting step toward reducing energy use by performing lighting upgrades at the Coffon Building, Engine 8 (Taylor Square), Fire Headquarters and three buildings at the Cambridge Cemetery. Existing lights within these facilities have been replaced with high-efficiency lamps and fixtures, and occupancy sensors have been installed in many locations throughout the buildings in order to reduce energy use and costs even further. Projected energy savings from these lighting efficiency upgrades is an estimated 130,000 kilowatt hours/year, resulting in avoided costs of approximately $18,000/year for the City. These energy savings represent averting close to 200,000 pounds of carbon dioxide emissions into the atmosphere annually, the equivalent of removing 18 cars from the road!

The electric use of these buildings will continue to be monitored as part of the … [view entry]

Green Medford: Reverse Trick or Treat Bewitches Columbus School Neighborhood

What would you do if your doorbell rang on Halloween and instead of saying “trick or treat!” your visitors handed you a new, curly-cue light bulb (or two)? This year’s Halloween saw an event that was a brand new take on the usual compact fluorescent light bulb canvasses that the CEA hosts.  We are thrilled to see that this creative event went off without a hitch, and that it has set a great precedent for following years!

Please see below for the post featured on the Green Medford blog:

A group of us from Green Medford and Fletcher Green (a Tufts graduate student group) trolled the streets around the Columbus School last night–Halloween evening–handing out bags of treats to delighted and laughing residents at 84 addresses. People who answered their doors … [view entry]

Reverse trick-or-treat CFL event!

The Cambridge Energy Alliance has participated in many CFL exchange canvasses. On a chosen day, we and volunteers head out into neighborhoods and knock on doors, offering to give an equal number of CFLs for the number of regular light bulbs a household will hand us. As a special treat with Halloween approaching, Green Medford has announced an event that is a new take on this idea.

From the Green Medford blog:

Hi all! I want to share with you a very fun idea and ask for your help in making it a big success!

We’re calling our event “Reverse Trick or Treat,” thought up by JR Siegel, a student at the Fletcher School and a Medford resident. The idea is for a bunch of residents to get together on Halloween, … [view entry]

Peabody Terrace Competition Results

On March 6th, 84 residents at Peabody Terrace participated in an incandescent light bulb swap for compact fluorescent bulbs. Residents received one free CFL for every incandescent bulb they turned in—over 200 efficient CFLs found homes. The CFLs were provided by the Cambridge Energy Alliance and Harvard Real Estate Services (HRES). HEET, CEA, and HRES organized the promotion and logistics of this successful competition.

During the swap, residents learned about other ways to cut their carbon emissionsseasonable tips also available—and many signed up for a two-month long competition to see who can reduce them the most.

The results are in!

  • Apartments reduced their electricity use by an average of 11%
  • The top six winners reduced their electricity use by 30%
  • And the first place prize winner reduced
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Sustainable Business Leadership Graduation Ceremony – Cambridge

Eleven Cambridge companies were certified as “Sustainable Business Leaders” on Thursday April 1, 2010, for completing the Sustainable Business Leader Program (SBLP)—a program of the Sustainable Business Network (SBN) that provides guidance, support and technical assistance to facilitate the “greening” of small and medium-sized businesses. The special certification ceremony, which was held at the Cambridge City Hall Annex, was co-sponsored by the City of Cambridge, Cambridge Local First and the Cambridge Energy Alliance in partnership with the Sustainable Business Network.

The first Cambridge graduating class included:

Cambridge Naturals, 1369 Coffee House, Veggie Planet, Stone Hearth Pizza, Irving House, Greenward, Harvest Co-Op Markets, Harvard Bookstore, The Fishmonger, Cambridge Brewing Company and Economy Hardware.

Graduates earned their SBLP certification by completing the … [view entry]

Volunteers go door to door in East Cambridge

CFL exchange volunteers On Sunday, February 21, eighteen volunteers participated in a community canvass campaign to spread awareness about simple home improvements to save money, energy, and the planet. The event organized by the Home Energy Efficiency Team and the Cambridge Energy Alliance sought to help cut carbon emissions in East Cambridge through a CFL light bulb exchange.

Exchanging incandescent light bulbs for compact fluorescents is one of the easiest and effective ways to reduce energy use at home. A compact fluorescent light bulb (CFL) will save about $30 over its lifetime and pay for itself in about 6 months. It uses 75 percent less energy and lasts about 10 times longer than an incandescent bulb. If every Massachusetts household would exchange just one incandescent light bulb to an energy saving CFL, it would save … [view entry]