Published on June 27th, 2008
A community in Canada has an unusual form of solar power that can provide over 90% of the annual heating and hot water needs for the homes, despite being situated in a cold Alberta location where winter temperatures can reach -33 degrees C (-27 F).
The Drake Landing Solar Community collects solar energy in a heat storage fluid through an array of solar panels on the roof of each home and covering all of the garages at the back of each home. The heated fluid is transferred to a neighborhood energy center, and then into the ground beneath an insulated layer, where the heat is stored in the earth.
Combined together, the 52 home community is able to collect and store enough energy from the sun during the summer that the ground storage temperatures reach 80 degrees C (176 F). This heat is sufficiently insulated beneath the ground that it can be drawn from throughout the winter to provide heat and hot water.
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Published on January 28th, 2008
The city of Greensburg KS was nearly obliterated by an F5 tornado in May 2007. But turning the devestation into an opportunity, the city is looking to make its mark by rebuilding as a green community. The city has mandated that all city buildings larger than 4,000 sq. ft. must be built to LEED-Platinum level and must have an energy performance level at least 42% better than current building code requirements.
“The city of Greensburg has taken the extraordinary step of committing to rebuild their community to a new vision, not settling for simply recreating what had gone before,” said Rick Fedrizzi, President, CEO & Founding Chair, U.S. Green Building Council. “By committing to a recovery plan based on green building, the community’s leadership has set a path that will result in a healthier, more livable city for its citizens, turning a crisis into an opportunity that is an example for us all.”
After a disaster, it is difficult to take the time and effort to try to build something better than what had been present before. This mandate only applies to city buildings. But hopefully, the wider city itself will embrace this direction, and not only will city buildings, but the stores, offices, homes, and other buildings will likewise be built better, and greener, than what they are replacing.
