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Innovative generator could spark energy savings |
| TheAllINeed.com/ |
(NC&T/MIT) Guyer described Climate Energy's micro-combined heat and power unit (micro-CHP) to the standing-room-only crowd gathered in the Tang Center as "hopefully, the next big thing in energy."
Guyer's talk was part of the Energy Club's lecture and discussion series, sponsored by the Graduate Student Council. These biweekly events occur year-round and feature lecturers or student-led discussions on important energy topics.
The idea for combined heat and power (CHP) is nothing new, Guyer said. "Thomas Edison's first power plant was combined," he explained. Still, the idea of generating both heat and energy in a way that is not only affordable but also quiet enough for use in a private home is a more recent development.
"On an industrial scale, CHP is used all the time," Guyer said. A natural gas-powered micro-CHP unit has the potential to save the consumer money by using the same fuel they buy anyway to generate both heat and electricity with greater efficiency.
 | | MIT graduate student Bryan Urban, left, and alumnus Phil LaFond, who works for Climate Energy, look over one of the company's residential generators, which produces both heat and electricity. (Photo: Dan Bersak) |
The micro-CHP systems are driven by heat-demand, delivering electricity as the byproduct. "This is all about providing thermal comfort to homeowners," Guyer said.
The unit is composed of two parts, one that acts as the generator and another that acts as a traditional air-handler or furnace, blowing hot air into the home.
Currently being used in close to 30,000 homes in Japan and 20 beta test spots around Massachusetts and New York, the micro-CHPs have been very well received. Although the initial cost is more than double that of a traditional furnace, the micro-CHPs can save users up to $700 a year in electric bills, Guyer said. They even come with a backup power supply if the electricity goes out for any reason.
The machines also have the advantage of being far superior at conservation, Guyer said. "Two-thirds of the power in a central station is thrown away," he explained. The micro-CHP utilizes more than 85 percent. "Micro-CHP in the home is one of the biggest things someone could do to reduce their carbon footprint."
Outside the Tang Center, a truck from Guyer's company, Climate Energy, was running free demonstrations of its micro-CHP unit, which will be available this fall. "So far people seem very happy," Guyer said.
"Many were surprised to see how quiet the generator was and how much heat it produced that could be used for space heating," said graduate student Derek Supple of the MIT Energy Club. "The talk was just as we intended: relevant to a broad group of disciplines and exciting due to the innovative nature of this residential-scale technology."
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