1
112
submitted 3 weeks ago* (last edited 3 weeks ago) by silence7 to c/energy

I'll note that right now, this is a seasonal issue, associated with moderate springtime temperatures when there is a lot of sunshine available.

2
-36
submitted 1 month ago by SwingingKoala@discuss.tchncs.de to c/energy
3
174
submitted 9 months ago by pizzaiolo to c/energy
4
-1
submitted 6 months ago by sodalite to c/energy

"ENLIL is a roadside turbine designed to capture wind power from highway traffic."

There's also an article on the technology from 2019.

I'm thinking even if we drastically reduce the number of cars, get rid of the wide-lane highways, and use just buses, trains, and planes to generate the wind, it would still be useful.

5
20
submitted 1 month ago by poVoq to c/energy
6
40
submitted 3 months ago by LilNaib to c/energy

This is almost as green and carbon-free as possible. It's accessible to normal people, it doesn't require exotic hardware, labor or permitting, it provides good heat and fresh air, all with little ongoing effort once installed.

7
47
submitted 1 month ago by testeronious@lemmy.world to c/energy
8
143
submitted 8 months ago by schroedingershat@lemmy.world to c/energy

Uranium is $128.30/kg

After enrichment, conversion and fabrication that's $3400/kg for 4.95% fuel.

At 36-45MWd/kg and a net thermal efficiency of 25% or $12.5/MWh up front.

With a 90 month lead time (72 month fuel cycle and 18 months inventory) at 3% this is $16.2/MWh

Which some solar projects are now matching

9
-4
Renewables: Is Solar the Best Solution? (insightsinnovationecon.substack.com)
submitted 1 month ago by testeronious@lemmy.world to c/energy
10
33
submitted 8 months ago by TehBamski@lemmy.world to c/energy
11
64
submitted 2 months ago by SteveKLord to c/energy

Solar pumps are spreading rapidly among rural communities in many water-starved regions across India, Africa, and elsewhere. These devices can tap underground water all day long at no charge, without government scrutiny.

For now, they can be great news for farmers, with the potential to transform agriculture and improve food security. The pumps can supply water throughout the daylight hours, extending their croplands into deserts, ending their reliance on unpredictable rains, and sometimes replacing existing costly-to-operate diesel or grid-powered pumps.

But this solar-powered hydrological revolution is emptying already-stressed underground water reserves—also known as groundwaters or aquifers. The very success of solar pumps is “threatening the viability of many aquifers already at risk of running dry,” Soumya Balasubramanya, an economist at the World Bank with extensive experience of water policy, warned in January.

An innovation that initially looked capable of reducing fossil-fuel consumption while also helping farmers prosper is rapidly turning into an environmental time bomb.

12
98
submitted 1 month ago by testeronious@lemmy.world to c/energy
13
223
submitted 8 months ago by silence7 to c/energy
14
17
submitted 2 months ago by ProdigalFrog to c/energy
15
30
submitted 10 months ago* (last edited 10 months ago) by ciferecaNinjo@fedia.io to c/energy

The energy suppliers in my area all have contracts I do not agree with. My gas & electric service may be cut in a couple weeks.

What’s my best move? I need enough electricity to power a mid-sized refrigerator (but could downgrade to a minifridge if needed), a few lights, router, laptop.

My boiler is gas but I have an old previously used mazut tank and furnice which I could possibly get working again with some effort.

Not sure what to do for cooking. Maybe use a portable electric cooktop.

(updates)

I’m favoring diesel over gasoline, for these reasons:

  • My large mazut tank could store a year supply diesel but I doubt I could safely store gasoline in that quantity. It’s questionable though because it has mold or something growing in it so I’m not sure if it needs to be cleaned (or whether cleaning it is even possible). Or maybe the mold is harmless.

  • Mazut and diesel may be compatible (not sure). That is, maybe a diesel generator can burn mazut or perhaps the mazut furnice can burn diesel. Guess I should find out how different they are.

  • Clean biodiesel can be made in a basement from waste cooking oil and lye. I can probably get the waste oil at no cost.

W.r.t renewables, it’s in a densely packed city with a tiny terrace so wind turbines are probably impossible. Solar panels may be viable, I need to look into that. But I would be really surprised if solar could warm the house in the winter -- it’s not a passive house (in fact not even insulated). I think solar would be a nice clean & quiet supplement.

Camping propane or butane stove may be the way to go for cooking.

16
6
submitted 10 months ago by spiderjudo@feddit.de to c/energy

tl;dr: It's too expensive

17
51
submitted 8 months ago* (last edited 8 months ago) by francisco to c/energy

Researchers from the European Environmental Bureau (EEB), the Stockholm School of Economics (SSE), and the Potsdam Institute for Climate Impact Research (PIK) questioned the planned development of new nuclear capacities in the energy strategies of the United States and certain European countries.

The commentary-paper Why investing in new nuclear plants is bad for the climate

...this has been posted here, in this same community. Will delete ..if I can. I have tried deleting (from within Jerboa) but it didn't (obviously..)

18
56
submitted 1 month ago by Wanderer@lemm.ee to c/energy

Solar panels — 80% of which are made in China — are so cheap that they're now being used to line garden fences in Germany and the Netherlands, the Financial Times reported on Tuesday.

19
8
submitted 2 months ago by silence7 to c/energy
20
83
submitted 8 months ago by stabby_cicada to c/energy
21
87
submitted 4 months ago by sodalite to c/energy
22
116
submitted 8 months ago* (last edited 8 months ago) by silence7 to c/energy

Archived copy

I'll note that most states don't let you sell electricity back to the grid at anything anywhere near retail price.

23
117
submitted 8 months ago* (last edited 8 months ago) by Nyssa to c/energy
24
130
submitted 6 months ago by silence7 to c/energy
25
294
submitted 1 month ago by silence7 to c/energy
view more: next ›

Green Energy

1847 readers
96 users here now

everything about energy production

founded 2 years ago
MODERATORS