Tag: electricity

40 Producing my own energy options in urban area with windows but no roof access? 2013-01-29T20:38:50.510

33 What’s the best strategy for turning off CFLs that will save energy but not reduce lifespan so much 2013-01-29T21:41:21.937

31 Are electric cars as environmentally friendly as we think they are? 2013-03-07T18:49:32.743

28 Which solar power technology has the highest energy return on investment (EROI aka EROEI)? 2013-06-08T19:27:23.420

25 What types of plugged in electronics use energy even when turned off? 2014-01-24T13:21:56.877

23 How can I manage my fridge's contents better? 2013-04-25T16:20:02.243

21 What form of electrical lighting has the smallest energy-footprint? 2013-05-06T22:22:23.983

20 Do "100% renewable" electricity plans increase renewable electricity production? 2013-03-23T06:53:58.977

20 Should I keep laptop and cellphone batteries fully charged, let them die before charging, or something in between? 2014-01-24T16:41:28.353

17 What is an easy way to cool off during the summer without electricity? 2013-01-31T05:57:05.293

17 Do USB outlets waste energy just like conventional wall warts? 2015-12-06T11:32:36.000

15 Would monocrystalline or polycrystalline solar panels perform best in a UK climate? 2013-01-29T20:59:26.790

14 What's the average efficiency of pumped hydroelectric energy storage facilities? 2016-09-17T08:35:55.960

13 How to build a waterfall powered electric generator? 2013-09-25T20:45:34.477

12 Water heating / electricity production by using earth's warmth? 2013-08-17T07:16:24.877

12 How much power does a computer monitor left switched on use? 2014-10-02T12:05:35.447

11 Are there any viable DIY or commercial solutions to convert waste heat to electricity? 2013-05-06T13:16:58.537

11 Which types of spare electric motors from common consumer appliances are suitable to repurpose as generators? 2014-05-02T04:59:28.570

10 Do switchable sockets left "on" use electricity if there's nothing plugged in? 2014-10-25T16:05:34.480

10 Why are electrical cars encouraged but is electrical heating discouraged? 2015-10-28T18:48:16.430

9 How much energy does it take to create a single light bulb? 2013-05-07T09:22:12.937

9 How worthwhile is it to use energy during daylight to take advantage of grid-based solar power? 2014-07-19T02:46:15.803

8 How can electricity grids successfully incorporate high (50%+) penetrations of PV and wind? 2013-11-03T10:25:45.870

8 How the grid is managed in markets with high renewable energy penetration 2016-10-21T08:49:00.850

7 Washing on delicate or permanent press...is this more sustainable and also gets your clothes clean? 2013-08-05T07:43:08.000

7 How efficient is it to use an electric car as storage for the energetic overload generated during sun hours (peaks) by solar panels? 2014-03-05T12:53:55.013

7 What Makes an Oven Eco-Friendly? 2014-07-15T16:09:00.780

7 Have spray-on solar cells hit the market yet? What other lightweight cell can I use for unusual shapes? 2014-10-03T22:33:18.910

7 What are the physical limits on wind turbine size? 2014-12-18T20:21:47.613

7 What scope is there for price reductions in photovoltaic inverter costs? 2014-12-19T10:28:53.730

7 Transmit solar over multiple time-zones? 2015-04-29T06:59:18.177

7 Does it make any difference to charge my electronic devices using an USB port? 2016-02-23T22:14:54.603

7 Anything similar to GravityLight that can be readily purchased? 2016-08-10T16:50:28.120

6 How to save heating energy with roommates? 2013-11-26T23:59:04.207

6 What is the number 1 country by global installed wind capacity: the United States or China? 2014-11-24T09:16:53.670

6 Where are the world's wave resources, beyond the UK and Portugal? 2014-12-22T21:34:05.223

6 Can I connect an inverter directly after an MPPT controller, with no battery? 2016-07-08T23:20:37.867

6 Can 140 square miles of solar panels power the US? 2016-10-05T22:42:58.313

6 Do higher electricity prices cause people to use less? 2017-02-24T02:47:19.787

5 How to monitor energy use in existing office building without submetering? 2013-02-08T00:41:01.703

5 How much power does an Electric Airpot use while on standby? 2013-12-10T15:53:03.067

5 Central or Micro inverter 2013-12-31T21:24:06.750

5 Resources for Teaching Children About Solar Panels 2014-02-24T19:42:43.953

5 What is the global environmental impact of holiday decorations? 2014-12-08T15:04:17.660

5 Pool, sauna and shower with electric heating and solar thermal vs gas heating? 2015-02-09T22:21:17.040

5 How would one go about judging the sustainability of BitCoin or other cryptocurrency 2015-05-24T17:04:09.860

5 Electrical usage data logging with wireless data transfer 2016-01-02T12:19:21.613

5 The more miles a car drives, the more economical battery packs become? 2016-04-02T23:01:27.310

5 How much energy do wall outlets with USB waste when not actively charging? 2017-03-28T22:15:44.827

4 How many kilowatt hours of electricity does it take to heat 180 litres of water from 15 to 60 degrees C? 2013-09-09T09:48:35.257

4 Is there a portable water recycling unit? 2014-04-27T03:02:58.140

4 How to interpret the efficiency of ground-source heat pumps? 2015-01-22T17:50:27.843

4 Hydro-electric generation from roof-collected rainwater 2015-11-23T09:30:54.053

4 Does the price of polysilicon (for solar PV panels) depend on oil prices? 2016-07-02T13:53:10.550

4 How can I find out what a reasonable rate for installed solar is? 2016-11-23T14:42:35.577

4 Best course of study for learning to build electrical systems and supporting electronics for an off grid power station 2017-03-09T19:17:07.057

4 Size and reliability of inverter for refrigerator in an off-grid tiny home 2018-01-23T06:30:50.333

3 What are the biggest supply-side logistical constraints on the expansion of offshore wind? 2013-05-18T20:16:20.100

3 I'm in England, and want to move to a time-of-use electricity tariff, how do I get an appropriate meter fitted? 2013-07-01T09:50:15.003

3 What is the difference between "hydro" and "tidal/wave"? And what is the difference between "solar (heat)" and "solar panels"? 2014-11-24T08:42:00.647

3 Which is more energy efficient, a washing machine express wash, or normal? 2015-10-06T16:41:11.400

3 Energy requirements for sustainable food production system 2015-11-14T01:17:03.440

3 How much energy would it cost to stabilize 2 tons of water at 70 degrees? 2017-01-17T13:38:35.967

3 How much, if any, does resolution effect the net power consumption of watching online video? 2018-01-10T19:30:49.763

2 Repair a bedside lamp 2013-12-17T15:38:31.060

2 How can I get my landlord to improve my apartments heating efficiency? 2015-01-24T00:45:24.453

2 Coupling a solar DNI dataset with demand loads at different time zones 2015-06-08T08:18:48.593

2 Is there a way to tell (or estimate) the electricity consumption of an arbitrary household item? 2015-08-04T11:36:13.227

2 Is leaving an electric oven on to heat bad for the oven? 2017-02-05T23:56:35.883

2 How much electric energy would a studio apartment use per month if everything inside is powered by electricity (heater, water, stove, etc.) 2018-01-18T07:13:19.007

1 Can an enclosed Pelton Turbine be used as a pump? 2013-12-05T19:50:43.753

1 Energy saving lamps suggestion 2015-03-12T19:52:15.470

1 better to heat house with gas or with electricity? 2018-02-06T21:02:52.507

0 Does a PV panel take more energy to build than it generates in its lifetime? 2016-05-25T09:23:33.513

0 Office building electricity use 2016-12-20T18:58:21.480

0 Estimating the power that can be generated by a tidal facility 2018-03-08T07:15:09.670

-1 Can I measure the average electricity consumption of a specific website design? 2013-01-30T15:23:00.610

-4 Getting power from an innovative new mechanism 2017-08-06T11:15:42.937