Area 51 » Professional

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Green Energy

Proposed Q&A site for green energy experts, researchers, professors, students, consultants, manufacturers, dealers, and end users.
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This proposal initially was for Green Energy Technology, but now made generic. Tags like <Technology>, <Commercial> can be added later. – amolbk Jun 11 '10 at 8:09

This proposal is now in the Commitment phase — example questions are locked!

63 Example Questions (7 closed)

active oldest votes
up vote 23 down vote
How efficient are micro turbines in generating efficent energy?
added by Mahesh Jun 10 '10 at 9:21
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up vote 23 down vote
What are the incentives for solar power in the US today?
added by robin girard Jun 21 '10 at 7:06
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up vote 21 down vote
What methods are available to store hydrogen usable by fuel cells?
added by googletorp, edited by Evan Plaice Mar 20 '11 at 22:27
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"which method is there..." or "what methods are there..." – jilles de wit Jul 27 '10 at 8:49
up vote 20 down vote
How can the noise generated by a windmill (blades) be reduced, without compromising on the power output?
added by amolbk Jun 10 '10 at 8:05
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up vote 20 down vote
I've seen fields of windmills idling on windy days. Why aren't power companies drawing from them when they could be?
added by Adam Davis Jun 10 '10 at 8:39
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up vote 12 down vote
What do I need to setup to feed excess power generated by my solar panels back to the grid?
added by Evan Plaice Jul 7 '10 at 9:58
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up vote 10 down vote
What commercial windmills are available and suitable for green energy enthusiast installation and use for the home?
added by Adam Davis Jun 10 '10 at 8:42
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up vote 10 down vote
How "green" is nuclear energy?
added by fretje Jun 11 '10 at 11:25
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up vote 7 down vote
In a small windmill, how can we implement an active yaw system?
added by amolbk Jun 10 '10 at 6:17
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up vote 7 down vote
How do I adjust my car's diesel engine so that I can use frying oil in it?
added by Master Of Disaster Jun 11 '10 at 8:27
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up vote 6 down vote
How is a small windmill protected from lightning?
added by amolbk, edited by WikiSpeedia hang-around Apr 5 '11 at 20:37
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up vote 5 down vote
By converting wind energy into power, aren't we stealing energy from natural processes? If so, in what ways does this affect the weather?
added by Adam Davis Jun 10 '10 at 8:40
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up vote 5 down vote
How much land do I need to use geothermal heat in my <x> square foot house?
added by acrosman Jun 24 '10 at 23:19
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up vote 5 down vote
My house is 100 years old, and not sealed like the Passiv-Haus concept. Is it still worth fitting forced air ventilation and heat recovery?
added by David Roussel Aug 5 '10 at 8:35
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up vote 4 down vote
What methods can be used to keep birds away from windmills?
added by Adam Davis Jun 10 '10 at 8:39
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up vote 4 down vote
For small wind turbines, is there any mechanism to take down the rotor-blade-generator assembly quickly, in case of storm conditions?
added by Isentropic Jun 10 '10 at 9:25
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up vote 4 down vote
What are good options for increasing the energy efficiency of my existing house? [closed]
added by jilles de wit Jul 2 '10 at 9:46
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closed as off topic by random, Amadeus, stff00, Eesmyal, Edgar Nov 20 '10 at 8:17

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.
up vote 4 down vote
I own an appartment in a large building. What options do I have to improve the energy efficiency of my house or generate my own heat/electricity?
added by jilles de wit Jul 2 '10 at 9:48
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up vote 4 down vote
What volume/height/pressure of water do I need to generate "usable" electricity from my stream/pond/etc.? What water turbines exist for home use?
added by warren, edited by WikiSpeedia hang-around Apr 5 '11 at 20:32
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up vote 3 down vote
Is hydro power a renewable resource of energy?
added by amolbk, edited by WikiSpeedia hang-around Apr 5 '11 at 20:36
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Off topic - amateurish. – amolbk Jun 10 '10 at 7:54
up vote 3 down vote
I've read about a prototype windmill generator that uses an electronic transmission to increase efficiency, are these commercially available yet?
added by Evan Plaice Jul 7 '10 at 10:04
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This link would be included in the question details. technologyreview.com/energy/21666/page1 – Evan Plaice Jul 7 '10 at 10:04
up vote 3 down vote
What are good tools to measure the power consumption of individual devices in my house?
added by jilles de wit Jul 27 '10 at 8:56
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up vote 3 down vote
I'm member of the city council and we have to decide which source of green energy to push most. What are good sources for research data on this?
added by Hanno Fietz Jul 30 '10 at 13:01
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up vote 3 down vote
There's going to be a referendum about a proposal for a new dam in my region. Ecologically, what are pros and cons of hydro power?
added by Hanno Fietz Jul 30 '10 at 13:05
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1  
Would be better without the referendum part. – jilles de wit Oct 6 '10 at 15:11
up vote 3 down vote
Why does my office building need to dig 1000+ foot wells for geothermal heat, but my kid's school just dug up their sports fields?
added by acrosman Jul 30 '10 at 13:27
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up vote 3 down vote
Where can I find a life cycle analysis of solar power?
added by robin girard, edited by WikiSpeedia hang-around Dec 16 '10 at 23:25
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up vote 2 down vote
What is the state of the art in domestic combined heat and power boilers?
added by Ian Jun 21 '10 at 14:37
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up vote 2 down vote
Is it good to a replace a old working gas boiler with a condenser boiler, or does it make more energy to make the new boiler then it will save?
added by Ian Jun 21 '10 at 14:38
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" ... or does it take more energy to make...." – jilles de wit Jul 27 '10 at 8:52
up vote 2 down vote
Where can I get a power meter to measure and statistically graph my home's power consumption in real-time?
added by Evan Plaice Jul 7 '10 at 9:55
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This is not about green energy at all, but a very likely question for the type of audience that we can expect at the site. – Hanno Fietz Jul 29 '10 at 7:02
@Hanno I disagree. This info is essential if you were planning to run your own power generation system that runs off of renewable energy to offset your carbon footprint. – Evan Plaice Jul 30 '10 at 10:26
up vote 2 down vote
Without making structural modifications, what are simple steps I can take to improve the energy efficiency of my apartment/condo?
added by warren Jul 27 '10 at 18:25
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up vote 2 down vote
What do various the emissions ratings (EPA, DEFRA) for woodstoves measure?
added by Bell Feb 22 '11 at 16:54
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up vote 1 down vote
What are some methods to increase the efficiency of my water heater? [closed]
added by Evan Plaice Jul 7 '10 at 10:00
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closed as off topic by Hanno Fietz, stff00, Amadeus, morfu, jilles de wit Oct 6 '10 at 15:14

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.

not explicit enouth. – Amadeus Jul 30 '10 at 8:24
up vote 1 down vote
I want to plant roof-top gardens to reduce the building's heat signature. What should I place under the gardens to prevent damage to the roof? [closed]
added by warren Jul 26 '10 at 20:15
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closed as off topic by David Roussel, EnergyNumbers, amolbk, eMansipater, mor22 May 4 '11 at 12:32

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.
up vote 1 down vote
Are CFLs really more energy efficient than incandescent light bulbs?
added by Hanno Fietz Jul 30 '10 at 13:07
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up vote 1 down vote
Why do we need to be able to predict wind power and solar power ?
added by robin girard Aug 5 '10 at 13:07
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up vote 1 down vote
Which species pollard best for wood-stove firewood in [area]?
added by Bell Sep 4 '10 at 6:38
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up vote 1 down vote
Is drawing the distinction between geothermal energy and ground source heat pumps unnecessarily pedantic?
added by Bell Sep 4 '10 at 6:48
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up vote 1 down vote
How can I calculate savings when switching from incandescent light bulbs to compact fluorescent light bulbs?
added by divided Nov 17 '10 at 21:56
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up vote 1 down vote
What critical performance parameters must be monitored in MW size photovoltaic projects?
added by klonq Mar 7 '11 at 0:30
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up vote 1 down vote
What commercial technologies exist to provide a country's heating needs from green energy?
added by EnergyNumbers Mar 8 '11 at 15:00
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