The Ergosphere
Sunday, March 08, 2020

A question of basic honesty

First, Michael O'Boyle of "Energy Innovation" posting at Forbes:
Once commonly considered a “bridge fuel,” electric utilities now must face the mathematical reality that fast-falling clean energy costs mean the bridge only leads to climate breakdown and the destruction of shareholder value.
Natural gas is being used as the backup fuel for balancing the unreliable supplies from wind and solar.  It is delivered on a just-in-time basis and cannot be stockpiled, so it is inferior to coal as a buffer against supply disruptions or demand surges.  However, it is currently cheaper than coal so those deficiencies are being overlooked until crises like the "polar vortex" strike.
A new report from Energy Innovation and shareholder advocacy group As You Sow outlines these evolving risks for shareholders
In other words, O'Boyle's group.
Utility investment in new natural gas infrastructure makes less and less sense from multiple angles and only compounds risks for investors, consumers, and society. New natural gas infrastructure is incompatible with a low-emissions future and faces intense economic competition from wind[1], solar[2], storage[3], and clean energy technologies[4].
Now wait just a second.
  1. Wind is not just unreliable but grossly so, subject to multi-week outages which are likely to get worse as the jet stream gets "stuck" more often.
  2. Solar's output is strongly counter-cyclical to demand at northern latitudes, being the least available when it is needed the most for heating.
  3. "Storage" meaning batteries or PHS, presumably.  PHS systems are typically sized for less than 24 hours at full power and batteries generally a handful of hours at most.
  4. What OTHER "clean energy technologies" are there?  Are any of them deployed at scale?  Can they be expanded?  This is deliberate deception.
On with the show.
Greater scrutiny of fossil fuel infrastructure at the regulatory commission level also looms large. Financial and climate concerns have recently led several local commissions to reject utility plans for new gas power plants including Indiana, Arizona, and California. These actions point toward a future where demand for gas is limited
Unless there is another source of energy to fill in for the frequent absences of wind and solar, gas will still be required.  The requirements will not be as much overall, but peak demand will remain and perhaps even increase as efficient combined-cycle plants are shut down and replaced by open-cycle peakers.
Today, new unsubsidized wind costs $28-54/megawatt-hour (MWh), and solar costs $32-44/MWh, while new combined cycle natural gas costs $44-68/MWh. In short, in almost all jurisdictions, utility-scale wind and solar are now the cheapest source of new electricity without subsidies.
Using LCOE is deliberate deception.  LCOE ignores the costs of firming and backup, which O'Boyle wants everyone to ignore.  The only even-somewhat valid figure of merit for unreliable generators is Levelized Avoided Cost of Energy (LACE).
For example, NV Energy’s recent procurement of 1,200 megawatts (MW) solar and 580 MW of four-hour battery storage already beats new natural gas on price. NV Energy paid $20/MWh for solar and $13/MWh for enough battery storage to shift 25% of daily energy, resulting in a total cost of $33/MWh per MWh delivered (including federal tax credits).
We're supposed to ignore "including federal tax credits" because we can all make out better by robbing someone else's taxes paid to fund our own energy consumption.  Not.
While often cited as the clean energy transition’s largest barrier, it is increasingly clear new natural gas won’t be needed to ensure grid reliability.
And who's saying this?
Studies by the National Renewable Energy Laboratory, National Oceanic and Atmospheric Administration, Evolved Energy, and Vibrant Clean Energy have found that 80% or more of our electricity could be produced from renewable sources without reliability or affordability issues.
A bunch of highly biased parties.  Tell it to Germany, which isn't remotely close to 80% "renewable" but whose Energiewende "is regarded in academic circles today as disastrous."

What's missing from this article that is allegedly about decarbonization?  Try "^Fnucl"; no matches.

Of course, the adults in the room differ wildly.  Utility Dive summarizes the report from the National Energy Technology Laboratory:
Additional gas capacity, baseload generation 'critical' to maintaining reliability: DOE analysis

Dive Brief:

  • A new analysis from the U.S. Department of Energy's National Energy Technology Laboratory (NETL) concludes additional natural gas pipeline capacity and baseload generation units, such as coal and nuclear, are "critical" to maintaining grid reliability and affordable electricity in the Eastern Interconnection during extreme weather events.
  • Coal power advocates argue that the continued retirement of coal-fired generating units threatens grid reliability and could lead to double-digit spikes in electricity prices in several wholesale markets, but clean energy advocates counter that renewables are now the cheapest energy option and can keep the grid operating reliably.
  • According to the NETL report, a "conservative" analysis shows investment in new pipeline capacity of more than $1 billion is needed to maintain reliability, though dual-fueled plants can partially relieve peak demand.
Dive Insight:

As more wind and solar energy comes online, the new DOE study questions whether those intermittent resources can maintain reliability in extreme weather.

“As the power sector relies more and more on natural gas and renewable sources for power generation, infrastructure must keep pace with this growth,” NETL Director Brian Anderson said in a statement.
NETL's report examines the near-term economic and reliability costs associated with expanding the natural gas generation network. The analysis concludes dual-fueled plants can partially relieve peak demand for natural gas, "but it will be difficult to maintain adequate fuel availability to meet that demand when more coal and nuclear resources are lost."

According to the DOE research, there is a need for additional pipeline capacity as thermal generating units are retired.

"Natural gas deliverability constraints lead to high fuel and electricity price spikes," the report find. It concludes those spikes are "exacerbated by the continued retirements of thermal units," which are expected to top 44 GW through 2024.

"Conservatively, an investment of $470 million to $1.1 billion over that already entrained in the long-haul natural gas transmission system is identified to avoid even worse outcomes," the report estimates.
Total hits for "nucl":  3.

It's obvious who's being honest, and who's lying through their teeth.

4 hours of battery storage is obviously not at all equivalent to a natural gas grid. A gas grid is very reliable, it would take more like a 4000 hour battery capacity to meet the same grid availability; solar output in winter in most countries is nil so you need seasonal storage. Here in Holland our december and january output of all solar PV combined is about 1%. So practically nil. That's 1500 hours of battery capacity just for the worst winter months.

4 hours of battery capacity still needs all the gas infrastructure and all the gas plants.

That's like owning 3 cars: 2 unreliable ones and one really reliable one. Then claiming that the 2 unreliable cars cost less than the reliable one! Totally fallacious line of reasoning.

If solar and battery can compete, how come nobody is building them without subsidies or renewable energy mandates? a "free" market does not build these schemes. It builds just gas turbines.
Post a Comment

<< Home

Mail Engineer-Poet


Important links

The Reference Library

Blogchild of

Armed and Dangerous

Blogparent of


The best prospect for our energy future:
Flibe Energy


Powered by Blogger

RSS feed

Visits since 2006/05/11: