Post on 28-Dec-2015
Power Towers• a solar furnace using the focused sunlight• large area of flat, moveable mirrors based on
where the sun is • by 2020 power from a Power Tower could
cost 5.47 cents per kWh
Power Tower FactsAdvantages
• cost efficient• cleaner than other
options• easy implementation
Disadvantages• many panels needed• expensive to set up• a lot of space is
required• many think they are not
that attractive
Rain Barrels
• Used for collecting precipitation from runoff for freshwater
• Cost around $100 to $4,000• Cost efficient and eco-friendly
Green Roof• a roof with a layer of self sustaining sod• collects and absorbs rain water,• provides insulation for the home• creates a habitat for animals• costs $15 to $20/square foot • very low maintenance cost• reduces air pollution• reduces runoff damage
Passive Solar Technology
• windows/panels that trap the sun rays and turn them into usable heat
• applied to eating and cooling, - water treatment, cooking solar
• Little to no cost to maintain• must be south facing
Recycled Siding• Recycled siding is used for the insulation of a home to
make it more energy efficient
• anywhere from $2 to $11 per square foot depending on which materials are used
• It is durable and requires very little maintenance
• Just as nice as synthetic siding, yet more cost efficient
Dual Flush Toilets• has two buttons • control how much water is used based on how much
is excreted• small flush for #1 uses 0.8 gallons • large flush for #2 uses 1.6 gallons• saves average 4,000 gallons• Costs about $250
Straw Insulation
• much cheaper than normal insulation• more fire resistant (burns at a lower temp.)• more compact• Better insulator than synthetic materials
Earth Tubes
• underground heating and cooling system• cost about $20,000
• sustainable and non-electric
• passive geothermal
•Pre heats/cools the fresh air intake