Why a Warming Planet is Harming Our Health by Lisa Marshall Samantha Ahdoot’s son Isaac was 9 years old when he collapsed from the heat while playing clarinet at band… read more →
Its efficiency is double that of the best air conditioner and 50 percent superior to the best natural gas furnace, according to the U.S. Department of Energy. Planetfriendly geothermal energy emits no pollution and reduces the need for fossil fuels.
Using this type of ground source heat pump requires the temperature to be brought up or down by an average of 20 degrees, as opposed to a unit above ground that requires more energy due to variable high or low temperatures and humidity. Another advantage of the Freon system is the use of copper. “Copper is an excellent conductor of energy.
A limitation of a grid-tied system is that when the grid is down or power is lost, the solar energy system cannot be used, since any electricity running through the system can be dangerous to the technicians working on the lines. Redman says that more and more homeowners are showing an interest in hybrid solar energy systems. These systems can be grid-tied and also operate to provide energy if the grid is down since they include a battery back-up component that allows for excess energy storage.
In facing up to today’s often degrading environmental, economic, political, social and hyper-individualistic cultural conditions, we instinctively know that survival requires coming together to effect constructive change. Here are proven approaches to community building that work.