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Questions tagged [energy]

the sustainable use of energy, through efficiency and renewables. Use this tag for questions on energy in general. For questions on a specific energy type see [electricity], [heating] or [light]. For questions specificially about efficiency, use [energy-efficiency]

7
votes
1answer
108 views

How “clean” is this Ohio State clean coal technology?

Much is being made of the clean coal breakthrough announced at Ohio State this week. The effort utilizes an innovative process called "chemical looping." Typical coal-fired power plants burn coal ...
19
votes
3answers
7k views

Storing food without refrigerator during the winter

I am unplugging my refrigerator for the winter months, I live in the northern United States so the temperature is sub freezing most of the time during winter. I have a semi-insulated garage that is ...
9
votes
4answers
3k views

Is gasoline or Diesel refining less sustainable, per energy output?

Inspired by my own answer here, I'm wondering what the actual numbers are regarding gasoline and Diesel fuel refining. I have read (don't remember where) that refining of Diesel fuel is less ...
5
votes
2answers
401 views

How to monitor energy use in existing office building without submetering?

Our office occupies one floor of a 4-story hundred year old building. We are making tenant improvements to our space, and are interested in lowering and monitoring our energy use, but are unable to ...
17
votes
1answer
142 views

Long-term sustainability concerns of compact flourescent vs incandescent light bulbs

There is a strong movement to push people away from using incandescent lightbulbs in favor of compact flourescent bulbs in order to save energy, but the pollution profiles of these bulbs are very ...
16
votes
2answers
6k views

How can I get my landlord to install better insulation?

We live in an apartment that has a lot of gaps in the doors and windows and poor insulation in the walls. Is there a way to make the landlord fix this? Some sort of property codes or something? He ...
25
votes
4answers
6k views

Is there a difference in insulation to keep heat in or out?

I know that one of the best ways to save energy at home is insulation. The question is, is there a different method for keeping the heat in when it's cold and keeping the heat out when it's warm? I ...
49
votes
9answers
2k views

How can I be more energy efficient in an apartment?

Usually when I see lists of things to do to be more energy efficient, they require one to own their own home. What can I do to be more energy efficient in an apartment? For example, I can't install ...
19
votes
1answer
2k views

What's the typical energy usage of automatic light switches?

A good way to cope with forgetting to turn of the lights is automatic light switches. But they must be using some energy to do their job. What's the rate of energy use for a typical automatic/sensor ...
62
votes
10answers
12k views

What is an energy efficient way to get fresh air indoors during winter?

Letting some fresh air inside is always a good idea, but during the winter it seems a bit wasteful to fling open the window and let the fresh air in at the expense of all that hot air going out, and ...
34
votes
2answers
537 views

What’s the best strategy for turning off CFLs that will save energy but not reduce lifespan so much

With ordinary bulbs, I was used to turning the lights off even when I left the room for a few minutes (mostly because I know that I'll find other business and forget to return :-) ), but I've heard ...
15
votes
3answers
209 views

How can I determine whether roof top wind turbines would be beneficial in my area?

Rooftop wind turbines seem great in principle, but in practice, especially in urban areas their usefulness and efficiency is debated, such as in this article. The most general consensus seems to be ...
42
votes
6answers
811 views

Producing my own energy options in urban area with windows but no roof access?

I'm wanting to produce my own energy, but I live in a condo with no access to the roof. I'd like to produce electricity, so maybe turning that energy into electricity safely. I have windows that have ...