CleanTechnica

Here’s a low carbon cooling technology that uses hot water from waste to make A/C without fossil fuels, saving 80% over fossil-fueled chillers.

This industrial scale chiller from the Chinese company Broad Central Air can convert many different kinds of waste heat into air conditioning. The waste heat can come from many industrial sources, including what the Chinese site calls “town gas”  - methane from town landfill, collected and burned to generate heat.
Read the rest of this entry »

From the outside, the Comfort Inn La Estancia near San Diego looks like your garden variety mainstream hotel, complete with free parking for truckers and RV’s.  But soon it will share something sustainable that many boutique “green” hotels boast, 100% solar power for its electricity usage.

The greening of Comfort Inn is thanks to a partnership with Pursol Solar Systems, which will install an 83 kilowatt photovoltaic system under its Solarize financing program, basically guaranteeing the hotel a 20% savings on its electricity bill without any up-front costs.

Read the rest of this entry »

Solar Decathlon 2009: The Construction Site

The solar capacity of the National Mall in Washington D.C. has increased exponentially in just a week as teams of college students from 20 international schools hurriedly reassembled their submissions for the fourth ever Solar Decathlon, a competition in which students must create “the most attractive, effective, and energy-efficient solar-powered house.” The three-week event kicked of yesterday with an opening ceremony that featured a speech from Energy Secretary Steven Chu, who announced an additional $87 million solar-targeted award for solar energy projects. Here’s a look at some of the impressive solar submissions and the opening day events.

“Decathletes,” as the decathlon participants are called, began construction on October 1, 2009, a full week before the start of the competition. Each house was designed to be deconstructed and then reassembled for the event. The components of each house travel from each team’s school and are reconstituted as the solar-powered homes lining “Decathlete Way” on the National Mall.

Image Credit: Stefano Paltera from USDOE on Flickr under a Creative Commons license

The CPUC has just approved the largest energy efficiency program in U.S. history, authorizing $3.1 billion in consumer rebates and efficiency programs over the next three years, bringing the state closer to implementing AB32, according to Lara Ettenson, director of California Energy Efficiency Policy at the NRDC.

Ettenson told me that the funding comes from the part of the budget that California’s regulated utilities may use to invest in conventional electricity. This may include “negawatts”or energy efficiency measures. This is not just cheaper than building new plants and transmission, but also easier to implement, as it is not subject to the NIMBYism and transmission issues that has impeded development of utility scale solar and wind projects that California utilities must add to meet RPS requirements of getting 20% of its energy from carbon-free sources by 2010. Currently it is at 14%.

This giant leap in funding could jump-start the new low-carbon economy in California; helping grow all the businesses that create cutting edge efficiency in cooling and heating, lighting, building materials, windows, insulation, appliances and smart grid technologies that reduce energy use.

Ettenson gave me some examples of uses for the funding in practical terms:
Read the rest of this entry »

Global Solar Center just finished a comprehensive, 50-state survey of solar incentives and adoption. Who leads the nation? It is surprising. As they say, it is the states who were “solar laggards” that are now “solar leaders”. But incentives aren’t the only issue.

Read the rest of this entry »

In the quest to create new green jobs, we have the opportunity to take existing jobs and make them green.

Every city has architects, engineers and construction divisions. In conventional circumstances the activities these employees undertake can burn considerable natural resources. But in San Francisco, we’re working to turn these traditional municipal positions into environmental champions. Read the rest of this entry »