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15 votes

2 answers

3k views

How much energy does it take to create a single light bulb?

David Myers

1

modified Jul 8 at 0:42

15 votes

4 answers

25k views

Is leaving the fridge door open for, say, 10 seconds a "big deal"?

Kate Gregory

2,005

modified Jun 26 at 0:14

27 votes

6 answers

1k views

What form of electrical lighting has the smallest energy-footprint?

Kalifornia Kitten 2025

1

answered May 27 at 2:53

3 votes

1 answer

355 views

How much energy would it save to park cars in the shade in summer?

Pat Myron

51

modified Jan 3 at 22:50

3 votes

2 answers

2k views

What is marginal energy?

Robotnik♦

1,372

modified Jan 1 at 9:03

2 votes

1 answer

79 views

Materials inside solar cells

Fred

3,547

modified Nov 17, 2024 at 9:48

12 votes

7 answers

5k views

What is the most sustainable way of making coffee?

tripleee

127

modified Oct 23, 2024 at 18:27

12 votes

4 answers

392 views

Are there projects that use renewable energy sources to create renewable energy sources?

juhist

5,585

answered Oct 2, 2024 at 10:11

4 votes

5 answers

25k views

What is the difference between "hydro" and "tidal/wave"? And what is the difference between "solar (heat)" and "solar panels"?

tripleee

127

modified Sep 24, 2024 at 16:35

2 votes

2 answers

399 views

Is there a difference between GW and GWe?

juhist

5,585

answered Sep 22, 2024 at 5:53

33 votes

10 answers

37k views

What to do with old, unused incandescent light bulbs?

Robotnik♦

1,372

modified Sep 16, 2024 at 12:20

1 vote

0 answers

22 views

How much air is required to effectively ventilate while charcoal burning?

Robotnik♦

1,372

modified Sep 12, 2024 at 23:23

2 votes

2 answers

260 views

Powering a small apartment

CommunityBot

1

modified Aug 11, 2024 at 4:06

12 votes

2 answers

5k views

Do switchable sockets left "on" use electricity if there's nothing plugged in?

user15509

1

modified Feb 22, 2024 at 2:29

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How much energy does it take to create a single light bulb?

Is leaving the fridge door open for, say, 10 seconds a "big deal"?

What form of electrical lighting has the smallest energy-footprint?

How much energy would it save to park cars in the shade in summer?

What is marginal energy?

Materials inside solar cells

What is the most sustainable way of making coffee?

Are there projects that use renewable energy sources to create renewable energy sources?

What is the difference between "hydro" and "tidal/wave"? And what is the difference between "solar (heat)" and "solar panels"?

Is there a difference between GW and GWe?

What to do with old, unused incandescent light bulbs?

How much air is required to effectively ventilate while charcoal burning?

Powering a small apartment

Do switchable sockets left "on" use electricity if there's nothing plugged in?

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