Prediction: Coal has fallen. Nuclear is next then Oil.

[eevee-fan]

New report shows Texas' home solar power generation increased over 3,500% in last decade: 'That's a testament'

Texas managed to increase its solar capacity by 3,700% over the past decade thanks to residents’ adoption of rooftop solar panels.

www.thecooldown.com

 

[ItsNotAboutTheMoney]

New report shows Texas' home solar power generation increased over 3,500% in last decade: 'That's a testament'

Texas managed to increase its solar capacity by 3,700% over the past decade thanks to residents’ adoption of rooftop solar panels.

www.thecooldown.com

https://environmentamerica.org/texas/center/media-center/report-texas-ranks-3rd-for-residential-rooftop-solar/

https://environmentamerica.org/texas/center/resources/rooftop-solar-on-the-rise/

 

[eevee-fan]

Air Force partners with startup to tap virtually limitless power source: '[As] close to the holy grail as you can get'

Now, this is literally ground breaking!

 

[eevee-fan]

BESS prices in US market to fall a further 18% in 2024, says CEA — Clean Energy Associates

In this Energy Storage News article, CEA forecasts an 18% price decline for containerized Battery Energy Storage System (BESS) solutions in the US by 2024, with 20-foot DC container costs reducing to an average of $148/kWh. This trend of decreasing prices is attributed to automation advancements,

www.cea3.com

Big thanks to Australia and Elon for getting this giant ball rolling for utility scale storage!

 

[mspohr]

Air Force partners with startup to tap virtually limitless power source: '[As] close to the holy grail as you can get'

Now, this is literally ground breaking!

Deep hole geothermal makes steam. No pump required.

 

[ItsNotAboutTheMoney]

Deep hole geothermal makes steam. No pump required.

It's deep hole, which I think means it doesn't lose steam (pun intended) as much over time.

 

[eevee-fan]

It's deep hole, which I think means it doesn't lose steam (pun intended) as much over time.

Closed loop systems do not lose steam. Newer natural gas plants also have kind of a closed loop system so uses very little water.

 

[ItsNotAboutTheMoney]

Closed loop systems do not lose steam. Newer natural gas plants also have kind of a closed loop system so uses very little water.

I was referring to production capability. Older geothermal plants have gradually had capacity loss.

 

[iPlug]

Steam generation will still decrease over time as this system is still extracting/transferring heat.

The thermosiphon they use is just a passive closed loop system (so no pump). Because it is closed loop, it should lose heat less readily.

The article mentions "there is no need for an energy-sapping pump, which makes typical geothermal processes less efficient and more expensive." Certainly a pump would make the system more expensive, but not necessarily less efficient if the pump increases system energy output from enhanced heat exchange > loss from energy input to operate said pump.

 

[mspohr]

No big North Sea fossil fuel country has plan to stop drilling in time for 1.5C goal

UK, Germany, Netherlands, Norway and Denmark have failed to align oil and gas policies with Paris pledges, say campaigners

www.theguardian.com

None of the big oil and gas producers surrounding the North Sea plan to stop drilling soon enough to meet the 1.5C (2.7F) global heating target, a report has found. The five countries – the UK, Germany, the Netherlands, Norway and Denmark – have failed to align their oil and gas policies with their climate promises under the Paris agreement, according to the campaign group Oil Change International. North Sea governments must act urgently, said Silje Ask Lundberg from Oil Change International, who co-wrote the report. “Failure to address these issues not only undermines international climate goals, but also jeopardises the liveability of our planet.”

The report found that policies in Norway and the UK were furthest from the Paris climate agreement because the countries were “aggressively” exploring and licensing new oil and gas fields. In 2021, the International Energy Agency found there was no room for new oil exploration in its pathway to net zero emissions.

 

[mongo]

Steam generation will still decrease over time as this system is still extracting/transferring heat.

There is a thermal equilibrium point where heat in from the earth equals heat out from the power plant. Depending on those effective resistances, the equilibrium point will be achieved sooner rather than later. If sooner, it will remain at that operating point indefinitely. If later, the system output decreases until equilibrium is reached. During the transition period, the overdraw is supplied by thermal mass.

The article mentions "there is no need for an energy-sapping pump, which makes typical geothermal processes less efficient and more expensive." Certainly a pump would make the system more expensive, but not necessarily less efficient if the pump increases system energy output from enhanced heat exchange > loss from energy input to operate said pump.

It depends if they are including hotel loads of the balance of plant, in which case higher net hole output increases efficiency. If limiting the observation to the hole, highest efficiency (not highest output) is achieved when added energy is minimized, and you can't get lower than zero.

 

[fhteagle]

There is a thermal equilibrium point where heat in from the earth equals heat out from the power plant.

I'm still pretty new to geothermal technology, but it sounds like you understand it pretty well. I'm wondering if there's an economic case for over sizing the plant somewhat to sell higher priced MWh for "peaking", then throttling back down a bit when load relaxes mid day or mid night to preserve down hole temperature for when it's needed most. Or to putting some heat into an above ground heat store, so the plant is pulling "equilibrium" power on a steady state but can peak / boost when the grid demands it. Know of any examples of either or both of those being deployed?

 

[eevee-fan]

Biden admin debuts infrastructure plan to electrify freight by 2040, a first

The Biden Administration has released the first-ever strategy document detailing its plan to target specific freight corridors for infrastructure improvement,...

electrek.co

 

[eevee-fan]

Florida neighborhood completely transforms homeownership with new amenity: 'We haven't had a power bill yet'

A story by The Washington Post highlighted how residents of Hunters Point have no power bills thanks to their solar scheme.

www.thecooldown.com

Literally Community Solar!

 

[iPlug]

NREL Heat Pump Study:

Ultimately, they found that heat pumps are a cost-effective choice in roughly 65 million U.S. homes, or about 60% of the country — and that’s before taking into account available subsidies….​

​

https://heatmap.news/economy/heat-pumps-national-renewable-energ-lab

 

[eevee-fan]

NREL Heat Pump Study:

Ultimately, they found that heat pumps are a cost-effective choice in roughly 65 million U.S. homes, or about 60% of the country — and that’s before taking into account available subsidies….​

​

Where Heat Pumps Win — And Where They Lose

I want an Octovalve for the house to scavenge and dump heat efficiently.

 

[miimura]

Scavenging heat from the drain water of sinks, showers and tubs would have meaningful heat recovery. However, you would have to plumb the whole house from the start with this in mind.

 

[eevee-fan]

Scavenging heat from the drain water of sinks, showers and tubs would have meaningful heat recovery. However, you would have to plumb the whole house from the start with this in mind.

You mean just like in a Tesla? Maybe we need to start asking Elon for a Tesla house that comes with solar roof tiles.

 

[mongo]

Scavenging heat from the drain water of sinks, showers and tubs would have meaningful heat recovery. However, you would have to plumb the whole house from the start with this in mind.

Yeah, just shower drain to water heater preheater would be awesome.

 

[fhteagle]

Yeah, just shower drain to water heater preheater would be awesome.

Those exist. Here's one example, though apparently on stop sale for some reason: Ecodrain . I feel like I had heard of another brand a long time ago but don't see it now.

Slightly bigger version for an entire city district: