Prices of the electricity we use to charge

Woosh

Trade Member
May 19, 2012
20,161
16,784
Southend on Sea
wooshbikes.co.uk
I've been on this forum for 14 years. Every month or so during that time, we get a thread about some new breakthrough in battery development. Some forum members even invested in them. Not one of those breakthroughs has been realised. Instead, we see a small percentage improvement each year from small changes to the battery construction or material. In 10 years time, we'll have 20ah 48v batteries that weigh 3kg for our ebikes.
unfortunately, most of the important progress is only for cars and trucks' batteries: rapid cost reduction, durability, fast charging, standardised connectivity and energy density.
e-bike batteries are left in a mixed bag with tool batteries.
Just look at how little you'd pay for a car that can do 0 to 60mph in under 4 seconds.
 

Ghost1951

Esteemed Pedelecer
Jun 2, 2024
1,277
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it's 40.8% - not 4%.
Renewables contribute about 40% of our electricity (cheapest), 18% come from nuclear (eye wateringly expensive) and 40% from fossil fuels.
Sorry - NO.

At the time I posted the message the total fossil fuel input into the UK electricity grid was 4%.

As you know, it varies. Perhaps you misread my message. It is easily done.

Right now the fossil fuel component is 3.9%

58042

The current energy mix is shown here:


 
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lenny

Esteemed Pedelecer
May 3, 2023
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"First sodium-ion battery storage station at grid level opens with cells that can be charged in 12 minutes
Clean electricity generation paired with the first grid-level sodium battery energy storage system can bring costs down to just $0.028 per kWh. The 10 MWh storage capacity is executed with sodium-ion cells that can be charged in just 12 minutes.
In them, instead of using the more expensive lithium for the cathode, the battery manufacturers employs cheap and abundant sodium."


 
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Woosh

Trade Member
May 19, 2012
20,161
16,784
Southend on Sea
wooshbikes.co.uk
I watched recently a YT video about some thermo-electric engines. The idea is simple enough: you burn fuel to heat up some salt like table salt in a jet engine. The sodium in the salt emits an intense yellow light. At the closed end of the chamber, you place a photo-electric cell whose band gap matches the yellow light of the sodium. Theoretically, you can convert as much as 60%-80% thermal energy into electricity. It's like James Bond stuff.
 

lenny

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May 3, 2023
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lenny

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May 3, 2023
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"(MIT) have found a way of creating an energy storage device known as a supercapacitor from three basic, cheap materials – water, cement and a soot-like substance called carbon black.

For now, the concrete supercapacitor can store a little under 300 watt-hours per cubic metre – enough to power a 10-watt LED lightbulb for 30 hours."

 

lenny

Esteemed Pedelecer
May 3, 2023
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"bringing new hope to an electrifying world with a growing appetite for powerful magnets."


"AI Detectors Get It Wrong. Writers Are Being Fired Anyway"

 
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lenny

Esteemed Pedelecer
May 3, 2023
2,303
675
"Researcher suggests that gravity can exist without mass, mitigating the need for hypothetical dark matter"
 
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