This winter photo shows brightness where the most heat is escaping this home.

Cambridge! It’s finally here: a chance to vividly see the cool or warm air leaving your drafty home, without having to pay hefty fees to a thermal photographer. Thanks to the Thermal Imaging Project on which HEET has partnered with Sagewell Inc., Cambridge homeowners can request thermal (infrared) images of the outsides of their homes.

The images are taken with car-mounted cameras similar to those used for Google Maps street view, and taken on a “first come, first served” basis – with highest priority given to locations with highest demand.  With the slight air of a Groupon deal, Sagewell has asked for 400 requests from Cambridge before they will release our thermal images for free.

Because of fossil fuel prices… [view entry]

This is a guest post from Eric Grunebaum from the great blog, EnergySage.

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Part 1

Search for the Solar Grail

Hello to new EnergySagers -

I’m located in Massachusetts and I thought my recent experiences looking into solar PV for my house might be helpful for folks.

First off, I should say that I’m pretty lucky to have an unobstructed south-facing roof. I’ve been thinking about solar for a while, and watching prices go down, so a couple of months ago I started asking people who had installed solar PV panels if they could recommend companies. I found two through word of mouth and then I found three more via EnergySage.com.

I was definitely interested in the “social” benefits of cutting back on fossil-fuel generated electricity, but what really… [view entry]

The clean energy revolution has never been more critical.  In a report released December 8th, the Environmental Protection Agency (EPA) made a direct link between the con­tro­ver­sial drilling prac­tice known as hydraulic frac­tur­ing and ground­wa­ter contamination.  For years, hydraulic fracturing, or “fracking” a method to extract oil and gas from under­ground deposits that uses a mix­ture of sand, water and chem­i­cals to frac­ture shale rock and release the gas, has been taking place across the country, mainly unabated and unquestioned by politicians and industry professionals.

Now however, it’s official: fracking has been correlated to tainted groundwater that is often entirely undrinkable by area residents and wildlife alike.  The EPA report specifically notes high con­cen­tra­tions of ben­zene, xylene, gaso­line and diesel fuel in groundwa­ter sup­plies linked to waste­water pits and deeper fresh water wells. … [view entry]

From Boston to Austin real estate there’s a new trend.  Rooftop gardens, or green roofs, are popping up everywhere. These gardens add life and color to gloomy, industrial looking cities and drab roofs.

Rooftop gardens improve air quality, create local food sources, delay water runoff, and bring color to a dull roof.  They also help insulate buildings and reduce electricity and gas costs, which is  particularly beneficial for people who live in very hot or cold areas. According to GreenRoofs.com, green roofs allow buildings to retain 30% more heat in the winter than ordinary roofs. Green roofs also reflect light and heat, which may help buildings stay cooler in the summer. The insulation from rooftop gardens also helps block out noises from outside.

There are many different kinds of green… [view entry]

What does ‘green building’ mean?  How can principles of sustainability be implemented in building design and construction and be certified as such?  These were questions that the U.S. Green Building Council (www.usgbc.org) dealt with when they rolled out their first Leadership in Energy and Environmental Design (“LEED”) guidelines in the 1990s.  Although LEED has received criticism for not incorporating measured building performance in its accreditation service, their guidelines have evolved over the years and are regarded as the leader in the world of green building certification [1].  Energy 2.0 contributor John Bolduc reports that here in Cambridge–one of the nation’s most accomplished cities in sustainable practices–64 buildings have either been registered with LEED or accredited.

But for all the usefulness a green building certification system brings with it, it still doesn’t get at the need for sustainable developments on a slightly larger scale–that… [view entry]

Kaiser Joseph Strasse, in Freiburg Center

I’m on a personal study tour of Germany and Holland to see what German and Dutch cities are doing about reducing greenhouse gas emissions and adapting to climate change.  The tour is organized by ICLEI-Local Governments for Sustainability, an organization that the City of Cambridge has been a member of since 1999.  Our tour leader, Jade Jackson, is leading our group of 4 Canadians and 2 Americans through Freiburg and Dresden Germany, and then on to Bonn to attend the ICLEI Climate Resilient Communities conference.  We will end up in Rotterdam in The Netherlands.  I thought I would try to share what I see and learn along the way.  I hope you find it useful and interesting.

In Cambridge, we often… [view entry]

Residents of Cambridge, MA were introduced to a new opportunity on February 8th, 2011. Energy efficiency is on the minds of renters, condominium owners, and homeowners alike as the environmental, financial, and physical benefits become more prominently appreciated. Usually when energy efficiency information is available, it is more general and further discussion with specific professionals is suggested, since the process of making home energy efficiency improvements is tailored to unique home and ownership characteristics and often entails several detailed levels of complexity. On February 8th, those professionals were brought together in one place for an evening of sequential enlightenment for curious attendees, with an added bonus of networking amongst their industry peers and less-assumed partners, Green real estate agents.

When the Cambridge Energy Alliance and Coldwell Banker Agents Amy Tighe and Robin… [view entry]

Green jobs, no longer just an environmental buzz phrase, represent a critical component to the progressive growth of the US economy. On February 23rd, the Department of Labor’s Employment and Training Administration (ETA) announced the availability of $40 million in green jobs development grants.  The funds are authorized for the Green Jobs Innovation Fund (GJIF) and are meant to encourage the growth of the green economic sector, which includes everything from renewable energy technology and implementation, to policy and programmatic work.  The announced grant will also support individual training and development within the green jobs sector to ensure interested candidates receive the proper credentials to be competitive within the green economy.

President Barack Obama

In the 2011 State of the Union Address, President Barack Obama highlighted many goals as part of the administration’s “winning the future” campaign. Energy efficiency was one such goal, and last Thursday the President, speaking at Penn State, unveiled the Better Buildings Initiative, a plan for a 20% improvement in energy efficiency in commercial buildings by 2020. It’s no coincidence the plan was reveled at Penn State, a school with more than 500 researchers working on energy and environmental studies. The President touted Penn State as a leader in the research towards a clean energy future.

The initiative also strives to reduce companies’ energy bills by $40 billion per year. The plan aims to achieve these… [view entry]

When we consider the many actions we may take to fight global warming and become more responsible citizens of earth, do we often think of our roofs?  At most, green roofs are the topic of impassioned discussion, but other alterations aren’t mentioned or considered.

The discussion of altering roofs first became a heated (ha) topic in the U.S. when the U.S. Secretary of Energy, Steven Chu, a Nobel prize-winning scientist, brought the concept of white roofs to the table in 2009. He proposed that, though it may seem a silly action to suggest, if we could make all of the roofs and dark paved surfaces white, we would be able to save emissions equal to taking all the cars off of the roads for eleven years.

Using white surfaces… [view entry]