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Questions tagged [electricity-generation]

methods for producing electricity, including inputs (fuel, land, water, air) and byproducts (heat, waste, emissions)

14
votes
3answers
9k views

How much power can a bicycle generator produce?

I was interested in generating electricity using dynamo-electric generators when all external power sources are dysfunctional (power line fault, no wind, not enough sunlight, etc). Different bicycle ...
7
votes
2answers
132 views

Is using vegetable oil for electricity generation more efficient than burning whole plants?

This question is based on the premise that using "cheap" biofuel in a diesel engine to power a generator (and not using batteries) is better than the alternatives. My understanding is that if you must ...
6
votes
1answer
580 views

Types and quantities of air pollutants by fuel, per kWh, for electricity generation?

An often repeated claim is that transitioning from coal to natural gas reduces air pollution... but what pollutants? and by how much? how is the potential reduction calculated? While natural gas (...
8
votes
1answer
179 views

Is the energy used to manufacture and install solar panels in proper balance with the energy output from them? [duplicate]

From mining/harvesting materials to altering them into useful manufacturing materials to making actual products, and then packaging them and shipping them to retail stores, or directly to customers, ...
5
votes
1answer
69 views

Is there an “energy returned on materials invested” index for energy sources?

We already try to measure how much energy is invested (EROEI) in the production of energy, but I have a hard time finding numbers on the materials invested. For example: What is the total energy a ...
5
votes
2answers
273 views

Are RECs (Renewable Energy Certificates) an effective method to “green” industry?

Chris Goldie's answer to a question on sustainable web infrastructure brought this question up. From the US Environmental Protection Agency: A renewable energy certificate, or REC (pronounced: rěk)...
3
votes
3answers
786 views

Is 3 phase electrical generation more efficient to utilize than single phase?

Is 3 phase power more efficient to generate/use? How difficult or complicated is it going to be to provide balanced single phase load(s) from a 3 phase service? (equipment & controls required) If ...