Panel Mounting Systems
For the largest energy harvest of an arrangement, a solar tracker assembly can be used as much as a transparent solar window is present. With modulating module prices, however, the additional cost of the follower plus the introduction of moving parts into an otherwise non-mechanical system makes this option more difficult to justify. Often, it is a better investment to increase the size of the matrix to increase production throughout the system year.
Certain loads need special consideration because of their high energy usage, including heating, air conditioning, water pumps, refrigerators, water heaters and stoves. For these applications, it is best to first determine if there are other methods that can complete the same task, for example when drying clothes use clothes racks instead of dryer. If a household appliance is still to be used, consideration should be given to ways to reduce the demand for the load, and then to purchase the most efficient appliance that will serve that need. For example, proper window positioning and proper size can help reduce air conditioning loads, as well as good wall insulation. After using all non-electric cooling means, use an evaporative cooler (in dry climate) or ceiling fans.
Consumers in the isolated network must be aware of what their energy allows and carefully buy efficient appliances. Many appliances, having large attractions or standby modes, can be great energy consumers. The US Department of Energy Energy Star website (energystar.gov) is a good place to investigate about the most effective appliances - however, even with the Energy Star rating in the appliance categories there are wide variations in The energy consumption. For example, the estimated Energy Star consumption of a LG 42 "plasma television is 140 kWh per year, compared to a similar model LCD whose range is 83 kWh to 152 kWh per year. Likewise, comparing Whirlpool refrigerators demonstrates that a refrigerator with two doors consumes approximately 30% more energy than one with the top freezer.
Because the sites of homes without a network sometimes have more rooms than the houses in the city, they generally have more places for the placement of the panels beyond a home or the roof of a garage. Land mounts, column supports, sheds or barn roofs and solar trackers are options. A ground mount or column mount system allows the array to be adjusted according to the season, and this additional power output can reduce the runtime of a backup generator during the winter. For example, adjusting to a 3000 W fixture in Pueblo, Colorado, from a fixed latitude slope to a steeper slope will gain 0.5 hours of maximum sunshine during the winter. That additional energy is estimated at about 1500 Wh per day.
For the largest energy harvest of an arrangement, a solar tracker assembly can be used as much as a transparent solar window is present. With modulating module prices, however, the additional cost of the follower plus the introduction of moving parts into an otherwise non-mechanical system makes this option more difficult to justify. Often, it is a better investment to increase the size of the matrix to increase production throughout the system year.
Certain loads need special consideration because of their high energy usage, including heating, air conditioning, water pumps, refrigerators, water heaters and stoves. For these applications, it is best to first determine if there are other methods that can complete the same task, for example when drying clothes use clothes racks instead of dryer. If a household appliance is still to be used, consideration should be given to ways to reduce the demand for the load, and then to purchase the most efficient appliance that will serve that need. For example, proper window positioning and proper size can help reduce air conditioning loads, as well as good wall insulation. After using all non-electric cooling means, use an evaporative cooler (in dry climate) or ceiling fans.
Consumers in the isolated network must be aware of what their energy allows and carefully buy efficient appliances. Many appliances, having large attractions or standby modes, can be great energy consumers. The US Department of Energy Energy Star website (energystar.gov) is a good place to investigate about the most effective appliances - however, even with the Energy Star rating in the appliance categories there are wide variations in The energy consumption. For example, the estimated Energy Star consumption of a LG 42 "plasma television is 140 kWh per year, compared to a similar model LCD whose range is 83 kWh to 152 kWh per year. Likewise, comparing Whirlpool refrigerators demonstrates that a refrigerator with two doors consumes approximately 30% more energy than one with the top freezer.
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