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Questions tagged [power-generation]

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15 votes
1 answer
2k views

Does a coal plant "kill more in a few weeks than nuclear has ever killed"?

Director Oliver Stone and Prof. Joshua Goldstein have created a film named "Nuclear Now", arguing in favor of installing more (modern) nuclear power plants to combat climate change and ...
einpoklum's user avatar
  • 2,511
10 votes
1 answer
780 views

Would covering 10% of hydro-power reservoirs with solar panels generate as much power as fossil-fuel plants worldwide?

This article in the journal Nature, claims that: Covering 10% of the world’s hydropower reservoirs with ‘floatovoltaics’ would install as much electrical capacity as is currently available for fossil-...
einpoklum's user avatar
  • 2,511
0 votes
1 answer
822 views

Are remote self-powered implanted devices with transmitters practical?

There is an article about a research in nanogenerators and transmitters used to make a self-powering implant which can transmit wireless signals to receivers over a distance. It is claimed that A new ...
RLR's user avatar
  • 177
3 votes
0 answers
471 views

Did researchers create a graphene device that drew "free" power from the ionic thermal motion?

A 2012 pre-print, Self-Charged Graphene Battery Harvests Electricity from Thermal Energy of the Environment claims that a graphene device was used to generate a voltage of 0.35V by capturing some of ...
RLR's user avatar
  • 177
36 votes
4 answers
12k views

At the current rate are we going run out of fossil fuels by 2060?

British energy company Octopus Energy claims on their blog: If we keep burning fossil fuels at our current rate, it is generally estimated that all our fossil fuels will be depleted by 2060. This ...
Stupid_Intern's user avatar
5 votes
2 answers
572 views

Does the average carbon footprint per bitcoin transaction range from 233.4 to 363.5 kg of CO2?

https://www.cell.com/joule/fulltext/S2542-4351(19)30087-X says, According to the Bitcoin Energy Consumption Index, Bitcoin’s energy use in 2018 translates to a carbon footprint of 19.0 to 29.6 ...
Matthew Christopher Bartsh's user avatar
43 votes
3 answers
7k views

Did wind and solar exceed expected power delivery during Winter Storm Uri?

From The Independent, "Why on earth would right-wing people with connections to the fossil fuel industry lie about ‘frozen wind turbines’ in Texas?" Sure, some wind turbines and solar ...
Evan Carroll's user avatar
  • 30.6k
7 votes
1 answer
650 views

Is solar power the cheapest form for utility companies to build?

A recent Popular Mechanics article claimed In a new report, the International Energy Agency (IEA) says solar is now the cheapest form of electricity for utility companies to build. That’s thanks to ...
Sebastiaan van den Broek's user avatar
3 votes
0 answers
705 views

Can electricity be obtained from neutrino radiation, like a solar cell?

Power Technology magazine published a 2019 article *Neutrino energy: harnessing the power of cosmic radiation. It describes a new energy technology - making solar panels, but for neutrinos instead of ...
David Elm's user avatar
  • 203
-1 votes
1 answer
397 views

Is over-reliance on wind energy the real reason PG&E is cutting power? [closed]

It's been widely reported that to mitigate the risk of power lines sparking wild-fires in California, Pacific Gas and Electric (PG&E), the largest utility in California, has been preemptively de-...
LShaver's user avatar
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4 votes
1 answer
616 views

Does Africa have to choose between renewable energy and economic growth?

Speaking at an energy conference in Moscow, Russia's president Vladimir Putin was critical of renewable energy. He seems to claim that it is a choice between fossil fuel driven economic development ...
user avatar
5 votes
1 answer
658 views

Is the production of nuclear power very expensive? [duplicate]

Reuters recently published the following piece: Nuclear energy too slow, too expensive to save climate: report Inside, it says: The cost of generating solar power ranges from $36 to $44 per ...
einpoklum's user avatar
  • 2,511
75 votes
2 answers
13k views

Have 1.5% of all nuclear reactors ever built melted down?

During a June 28, 2012, "Talk at Google", Stanford professor Mark Jacobson made the following claim: One and a half percent of all nuclear reactors ever built, and there have been about 440, have ...
LShaver's user avatar
  • 10.2k
45 votes
3 answers
10k views

Can fracking help reduce CO2?

The Guardian reports that the UK fracking tsar, Natascha Engel, has resigned and blamed anti-fracking activism for "fear-mongering", saying: “There is much to be optimistic about how developing ...
krubo's user avatar
  • 724
2 votes
0 answers
224 views

Are there major negative health effects from living next to a coal power plant? [closed]

EnergyJustice writes: Health Impacts & Coal Plants: There’s no shortage of data to show that individuals living near a coal plant are at higher risk for health problems than those who do not live ...
Christian's user avatar
  • 33.8k
9 votes
2 answers
1k views

In the U.S., is more water used for electric generation, and more electricity used for water infrastucture, than anything else?

Today I received an e-mail message regarding an upcoming Energy Water Nexus Technical Conference that made this unsupported claim: Nationally, the largest category for water consumption is electric ...
LShaver's user avatar
  • 10.2k
23 votes
3 answers
5k views

Can Genesys' solar amplifier generate 40kW of power from a 200W solar panel?

Genesys currently has a press release on their home page discussing a new US patent: Genesys, LLC has demonstrated a working prototype generating up to 40 Kilowatts from one standard solar panel ...
Don Branson's user avatar
47 votes
3 answers
16k views

Can the US be powered by a 100 miles x 100 miles solar grid? [duplicate]

In this article Elon Musk is quoted to say that the US can be powered by a solar grid shaped as a square (in video he says "a corner of Utah or Nevada") 100 miles x 100 miles big. “If you wanted ...
Paul Smith's user avatar
  • 1,131
144 votes
2 answers
31k views

Do solar panels create 300 times more toxic waste per unit of energy than nuclear-power plants?

From Slashdot: A new study by Environmental Progress warns that toxic waste from used solar panels now poses a global environmental threat. The Berkeley-based group found that solar panels create ...
user5341's user avatar
  • 31.3k
16 votes
1 answer
4k views

Are wind farms profitable without subsidies?

In this 2015 Financial Times article, Warren Buffett talks about a onshore wind farms and their profitability. “For example, on wind energy, we get a tax credit if we build a lot of wind farms. ...
daniel's user avatar
  • 725
52 votes
2 answers
9k views

During Great Britain's coal-free day, were coal plants shut off, or active and generating power GB didn't use?

On Friday 21st April, the UK National Grid announced the following on twitter: National Grid can confirm that for the past 24 hours, it has supplied GB's electricity demand without the need for #coal ...
doppelgreener's user avatar
1 vote
1 answer
2k views

Has Brilliant Light Power developed a new source of energy from water molecules?

Brilliant Light Power is a company that claims, on their web-site, to have: developed a new commercially competitive, non-polluting, plasma-based primary source of massive power from the conversion ...
Marina Ala's user avatar
153 votes
3 answers
32k views

Do wind turbines consume more energy than they produce in a lifetime?

A rumor in my region states that a wind turbine consumes far more energy while being built and setup than it can produce in a lifetime. The debate is about modern, freshly built turbines in ...
OddDev's user avatar
  • 2,139
8 votes
0 answers
387 views

Does the higher accuracy of smart meters lead to higher electricity bills?

Some people are reporting on social media that their electricity bills are doubling after the installation of smart meters: This blog explains the problem: Simply speaking, when any domestic ...
Peter Tirrell's user avatar
6 votes
1 answer
754 views

Can one generate enough electricity from a plant to power a cellphone?

This company is marketing a product which uses the photosynthesis of a single houseplant to charge a phone. http://www.bioo.tech/ IIRC the theoretical maximum efficiency of photosynthesis is about ...
Steven Gubkin's user avatar
4 votes
0 answers
999 views

Can Hemp free us from oil dependency?

Within this article it makes the claim that hemp oil is a viable alternative to crude oil. It doesn't go into any detail. It only states that hemp oil is a "clean fuel" while listing in the title "...
user avatar
2 votes
0 answers
248 views

Does turning off a light truly help the environment? [closed]

I have heard that a power plant will produce the same amount of power no matter what amount of electricity is being used. If this is the case, turning off a light bulb would not help reduce the ...
Eric Johnson's user avatar
6 votes
0 answers
265 views

Are Chinese companies dumping defective solar panels in other countries?

I've come across some people claiming that Chinese solar energy companies are dumping defective panels in other countries. The gist of the claim is that these low-cost panels will drive local ...
adam.r's user avatar
  • 1,421
4 votes
0 answers
374 views

Is there a viable design for a thorium car that can run for 100 years without being refueled?

This article and included video from Young Turks claims that Laser Power Systems has produced a "concept for a car" which can run for 100 years on 8 grams of thorium without needing t be refueled. ...
another guest's user avatar
3 votes
1 answer
710 views

Will the Solar Wind Energy's Downdraft Tower plan produce more energy than it uses?

Gizmag (largely directly reproducing the claims of Solar Wind Energy Inc) explains that the proposed new $US1.5m+ power station project works by: using a series of pumps to carry water to the top ...
Oddthinking's user avatar
  • 144k
7 votes
0 answers
507 views

Is the idea of solar roadways practical? [closed]

https://www.indiegogo.com/projects/solar-roadways#home This indiegogo campaign suggests replacing roads and highways with solar panels that could produce power, while keeping themselves free of snow ...
Damon's user avatar
  • 501
9 votes
1 answer
529 views

Did Mt. Etna cause Sicilian clocks to run fast?

From The Atlantic Wire: The Case of the Volcano That Set Time 15 Minutes Fast: It came to light that for thousands of people, digital clocks and watchers, from computers to alarm clocks, were all ...
user avatar
9 votes
2 answers
3k views

How long does it take for renewable technology to recoup its energy cost?

There are a number of technologies which are aimed at producing energy from non-fossil sources, among which very popular are wind power and solar power technologies. However, I have encountered a ...
StasM's user avatar
  • 492
15 votes
2 answers
704 views

Has nuclear power generation saved millions of lives from avoided air pollution?

In a recent paper in Environmental Science and Technology, Kharecha and Hansen argue that, by avoiding the airborne pollution that would have resulted from fossil fuel burning, millions of lives have ...
matt_black's user avatar
  • 56.2k
20 votes
2 answers
2k views

Is "peak wind" coming?

The concept of "peak oil" has been bandied about for some time (see this question: Is peak oil still set for 2013?) by people who believe the world hydrocarbon stocks will soon be so depleted that ...
matt_black's user avatar
  • 56.2k
23 votes
2 answers
2k views

Do wind turbines kill many birds each year?

It has been claimed that due to their large size, and the velocity of their blades that wind turbines kill large numbers of birds that run into them at night, or in fog, and die. http://www....
Clatoon Adour's user avatar
16 votes
0 answers
767 views

Solar energy in place of conventional energy sources [closed]

The first time I came across these arguments against solar energy was in "Overload" by Arthur Hailey. Admittedly, this is fiction, but the arguments seems to have some merit. Using solar cells to ...
rest_day's user avatar
  • 493
20 votes
2 answers
2k views

Can thorium end the energy crisis?

It seems that, as of lately thorium is steadily increasing in popularity, as an alternative to traditional nuclear fuels. Here's Mr. Kirk Sorensen in a TED video advocating the use of thorium. Thorium ...
Mihai Rotaru's user avatar
  • 4,153
28 votes
1 answer
6k views

Is it possible to obtain current indirectly from power lines?

Can one obtain a sufficient amount of energy for a household's needs by indirect means (induction or otherwise) from nearby high-voltage power lines? Are there any documented cases of such attempts (...
luvieere's user avatar
  • 4,297
17 votes
2 answers
1k views

Is the net output of CO₂ from Nuclear Energy lower than the net output of other energy sources?

While CO₂ is not produced directly when producing electricity from nuclear power, it is obvious that obtaining the radioactive material and preparing it for its use in a plant inevitably produces some ...
Lagerbaer's user avatar
  • 12.3k
23 votes
3 answers
2k views

Does electromagnetic radiation from high energy power installations have negative effects on health?

Note that I'm not asking about high energy RADAR and telecommunications installations or similar systems which can cook small animals alive. I've heard lots of stories about negative health effects ...
AndrejaKo's user avatar
  • 750