Energy Flashcards
Life cycle cost
Initial cost plus lifetime operating cost
Light bulbs have what percent waste?
95%
Energy efficiency
The % of total input into an energy conversion device that does useful work
Cogeneration
2 useful forms of energy are produced from same fuel
In transportation:
Increase fuel efficiency in motor vehicles
In buildings:
Insulate better, turn lights off
Passive Solar heating:
System that captures sunlight directly within a structure and converts it into heat
Photovoltaic cells
Converts solar energy directly to electricity
Wind power
Farmers have acres to power companies and collect royalties, sometimes more profitable than crops
Biomass
Plant Material and animal waste used as source of energy
Hydrogen
Using hydrogen gas for energy, burns very clean and eliminates air pollution
Geothermal energy
Heat contained underground, using Earths heat
Decentralized Micro-power
Going from one large centralized power system to micro-power systems providing an individual or community with power.
Solutions
Best alternatives