Green, ethical, energy issues in the news

gefnew

Hi all
some hot news you may like.
Cornwall 'hot rocks' firm claims breakthrough deal - BBC News
Happy New year All.

Martyn1981

Article on German RE generation beating FF's in 2020, leading me to find a factsheet from late Dec which made for interesting viewing as it shows that lignite is finally 'taking a kickin' the last couple of years (graphs 3 & 4).

German renewables power to energy mix gold

German renewables have for the first time produced more electricity than all fossil fuels in a full year, according to new figures.
The Fraunhofer Institute found green power hit 183 terawatt-hours in 2020, outstripping the 178TWh from lignite, coal, oil and gas.

Germany’s energy consumption and power mix in charts

Coastalwatch

Seek and you shall find so the saying goes and it would appear that scientists from down under have done as such in identifying the vast number of sites and potential storage capacity globally.

I wonder how many are actually feasible or cost effective but suspect even a small perentage of that number would make a useful contribution to future energy needs.

Database lists 616,818 global sites for sustainable pumped hydro

Scientists from the Australian National University (ANU) have identified 616,818 locations worldwide that could be suitable for 23.1 million GWh of pumped-hydro storage capacity.

The sites relate exclusively to closed-loop pumped-hydro energy storage projects with little environmental impact due to their location away from rivers. The sites can be found through an open-source online platform managed by the Australian government.

The locations all are at altitudes less than 100 m above sea level and have sufficient height differences to enable potential energy storage between two water reservoirs.

https://pv-magazine-usa.com/2021/01/05/database-lists-616818-global-sites-for-sustainable-pumped-hydro/?utm_source=pv+magazine+USA&utm_campaign=dbe501e064-RSS_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_80e0d17bb8-dbe501e064-159341337

silverwhistle

Seeing the reference to pumped storage made me think of SSE's Coire Glas scheme which will become more financially sustainable if the current events occur more often : https://www.theguardian.com/business/2021/jan/05/cold-snap-sees-uk-electricity-market-prices-reach-new-high

michaels

silverwhistle said:

Seeing the reference to pumped storage made me think of SSE's Coire Glas scheme which will become more financially sustainable if the current events occur more often : https://www.theguardian.com/business/2021/jan/05/cold-snap-sees-uk-electricity-market-prices-reach-new-high

£1 per kwh wholesale - ouch - what are the prices on Octopus agile?

Solarchaser

michaels said:

silverwhistle said:

Seeing the reference to pumped storage made me think of SSE's Coire Glas scheme which will become more financially sustainable if the current events occur more often : https://www.theguardian.com/business/2021/jan/05/cold-snap-sees-uk-electricity-market-prices-reach-new-high

£1 per kwh wholesale - ouch - what are the prices on Octopus agile?

They are capped at 35p/kwh, and thats what they are between 4 and 7pm tomorrow,  and pretty darn high all day tbh.

Definitely need more storage capacity to come online

michaels

Solarchaser said:

michaels said:

silverwhistle said:

Seeing the reference to pumped storage made me think of SSE's Coire Glas scheme which will become more financially sustainable if the current events occur more often : https://www.theguardian.com/business/2021/jan/05/cold-snap-sees-uk-electricity-market-prices-reach-new-high

£1 per kwh wholesale - ouch - what are the prices on Octopus agile?

They are capped at 35p/kwh, and thats what they are between 4 and 7pm tomorrow,  and pretty darn high all day tbh.

Definitely need more storage capacity to come online

Is the export tariff capped, otherwise I can see a good arbitrage opportunity....Preview

Solarchaser

michaels said:

Solarchaser said:

michaels said:

silverwhistle said:

Seeing the reference to pumped storage made me think of SSE's Coire Glas scheme which will become more financially sustainable if the current events occur more often : https://www.theguardian.com/business/2021/jan/05/cold-snap-sees-uk-electricity-market-prices-reach-new-high

£1 per kwh wholesale - ouch - what are the prices on Octopus agile?

They are capped at 35p/kwh, and thats what they are between 4 and 7pm tomorrow,  and pretty darn high all day tbh.

Definitely need more storage capacity to come online

Is the export tariff capped, otherwise I can see a good arbitrage opportunity....Preview

I believe export is set amount regardless of time.

I'd expect in the coming years to be a variable amount... which may not suit those who will export the vast majority in summer when the demand will be lower. 
However it could improve the maths for batteries 

michaels

Solarchaser said:

michaels said:

Solarchaser said:

michaels said:

silverwhistle said:

Seeing the reference to pumped storage made me think of SSE's Coire Glas scheme which will become more financially sustainable if the current events occur more often : https://www.theguardian.com/business/2021/jan/05/cold-snap-sees-uk-electricity-market-prices-reach-new-high

£1 per kwh wholesale - ouch - what are the prices on Octopus agile?

They are capped at 35p/kwh, and thats what they are between 4 and 7pm tomorrow,  and pretty darn high all day tbh.

Definitely need more storage capacity to come online

Is the export tariff capped, otherwise I can see a good arbitrage opportunity....Preview

I believe export is set amount regardless of time.

I'd expect in the coming years to be a variable amount... which may not suit those who will export the vast majority in summer when the demand will be lower. 
However it could improve the maths for batteries 

Nope, looks like with Octopus outgoing agile you get paid about 95% of the wholesale rate plus about 7p if exporting between 4pm and 7pm, nothing immediately about any cap so potentially you could be importing overnight at say 10p/unit and exporting at £1 per unit - tasty.

https://octopus.energy/blog/outgoing/

Solarchaser

Ahh yeah, forgot about the agile export, the lad who does the stats site talked about that before, and I had thought the same as you, low import, v high export, bit I'm sure their is a cap on export which makes the calculation a pretty much no chance of actually making money on it.

They state average is 4p and max around 10p on your link