What is the energy payback for photovoltaics? Producing electricity with solar photovoltaics (PV) emits no pollution, produces no greenhouse gases, and uses no finite fossil-fuel resources. The environmental benefits of PV are great. But just as we say that it takes money to make money, it also takes energy to save energy. The term “energy […]
Part 4 of Geothermal Energy: Power from the Depths of the Earth. If you’ve ever soaked in water from a natural hot spring, you’re one of the millions of people around the world who has enjoyed the direct use of geothermal energy. And while this naturally occurring hot water may be the perfect tonic for […]
Part 5 of Air-Source Heat Pumps. Poor installation, duct losses, and inadequate maintenance are more of a problem for heat pumps than for combustion furnaces. A growing body of evidence suggests that most heat pumps have significant installation or service problems that reduce performance and efficiency. According to a report on research funded by Energy […]
Part 3 of Energy-Efficient Water Heating. Reducing hot-water usage is primarily a matter of common sense and exerting a little extra effort to not be wasteful. Once you have applied a few simple, low-cost measures for reducing hot-water consumption, you may want to consider water-heating system improvements if you wish to further reduce your energy […]
Part 7 of Ways to Save Money on Energy at Home. Landscaping is a natural and beautiful way to keep your home more comfortable and reduce your energy bills. In addition to adding aesthetic value and environmental quality to your home, a well-placed tree, shrub, or vine can deliver effective shade, act as a wind- […]
Part 2 of Ways to Save Money on Energy at Home. The first step to taking a whole-house energy efficiency approach is to find out which parts of your house use the most energy. A home energy audit will show you where these are and suggest the most effective measures for reducing your energy costs. You […]
Part 2 of Earth Sheltered Houses. You may want to start your project by contacting the organizations that can help you locate architects, builders, and contractors with earth-sheltered building experience (a few are listed in the Source List). The experienced builders in your location can also ensure that construction plans meet area building code requirements, […]
Part 5 of Heat Your Water With The Sun. Your savings depend on how your solar system will be used, as well as the size and type of your system. Other factors can include the climate, the contractor, and the system rating. Your state may offer solar rebates or other incentives that will reduce costs. […]
Part 4 of A Guide to Making Energy-Smart Purchases. Weatherization projects insulate and tighten the shell of the home. Such projects include, but are not restricted to, caulking and weatherstripping, improving or replacing windows, and installing insulation. Caulking and Weatherstripping Caulking and weatherstripping are the easiest and least expensive weatherization measures and can save more […]
Part 3 of A Guide to Making Energy-Smart Purchases. Results from the energy audit can direct you to the changes that would be most appropriate to improve the energy efficiency, or “tightness,” of your home. Before you purchase an energy-related product or system, though, you should answer some important questions. What are your budgetary limits? […]
Part 1 of A Guide to Making Energy-Smart Purchases. If you feel that energy bills are taking a big chunk of change out of your pocket, you are not alone. Americans spend more than $115 billion each year on fuel and electricity for their homes. On the average, heating and cooling (space conditioning) account for […]