Anna Maria Historic Green Village: Video 6 Making Power; Heating It Up, Keeping It Cool
www.annamariahistoricgreenvillage.com/ This video is the sixth video in the series of videos following the progress of sustainable development, the Anna Maria Historic Green Village, in Florida. In this video detail of how geothermal technology will help the village is explained. The Green Village is for commercial and retail use and shall be powered entirely by renewable green energy such as solar energy and ground source heat pumps. The whole concept of the Green Village is to be zero net energy -- achieving platinum LEED certification. Video transcript: Lizzie: So a key part of this zero energy equation is to reduce our energy needs. So a huge thing for me - probably even more important than the photovoltaics, is insulation. Insulate, insulate, insulate! Just reduce the amount of energy you need to cool down a building or heat it up. Ray: We insulated underneath the rafters. The standard in Florida for roofs is R19; we have a much fatter coat on here, we have an R30 roof so we have a lot of insulation that prevents heat from coming inside the building. Lizzie: We're using photovoltaic energy which is energy from the sun to generate electricity, we're using thermal energy - solar thermal energy where we're using the heat and the energy from the sun to heat up water which is so important in a cafe, you imagine the number of plates that we're washing, and the amount of water we're heating up to make coffee. Ray: What a solar thermal panel is is basically it's a flat panel with copper tubing in it and it's painted black and what it does is it heats up water. That water will heat to 170 degrees absolutely free. Lizzie: And then the third crucial technology is geo-thermal. We have gone down 450 feet below the Rosedale cafe into an aquifer where the water temperature is 72 degrees. So all we have to do is bring it up a 450 foot well, pass it through some heat transfer technology and cool down the air in the cafe, or in the Winter, heat the air up - and we just said this has to be integrated. The whole thing has to work so that we are very efficiently using our most expensive piece of technology.
