Joe Deely

Add another record to the list - this time maximum solar for MISO at 15,669 MW - a more than 1GW increase from the previous record.

#energysky

Source = www.gridstatus.io/records/miso...

ERCOT gets hurt by the inability to "trade" with nearby grids like @caiso.com can...

Below is from a few weeks ago... I could see 90+% fossil free in the next couple of years.

That didn't take long... ERCOT passes 30,000 MW in solar generation.

#energysky

Berkshire Hathaway Energy Montana energises 150MWh BESS Berkshire Hathaway Energy Montana has successfully energised its 75MW/150MWh Glacier Battery System project in Montana, US.

The first utility-scale battery storage system is live in Montana - 75 MW/150 MWh.

BHEM is also building a 120MW solar system, which should go live this year. More clean energy for the #WesternGrid

Huge potential for solar/storage in Montana.

#energysky

www.energy-storage.news/berkshire-ha...

February is usually the start of the "record season" in the electricity market.

Kick it off with a new record for solar in ERCOT... should be passing 30,000 MW shortly.

Thanks to @gridstatus.io for info.

#energysky

Source: www.gridstatus.io/records/erco...

Would love to hear from Fervo what their current costs and projections are...maybe a ballpark?

@timlatimer.bsky.social @serrurier.bsky.social

US battery storage is exploding... up more than 15,000MW (= 15GW) this last year.

Expect more than 20 GW to be added in 2026.

#energysky

#energysky

From the latest ERCOT fact sheet - www.ercot.com/files/docs/2...

Some good nuggets....

California grid operator - @caiso.com is out with its Key Statistics report for December. Plenty of interesting factoids for those interested.

www.caiso.com/documents/ke...

Here is one : Installed BESS ended the year at almost 16GW.

This is an increase from about 11.5 GW in 2024.

#energysky

Sodium-ion battery cells already near lithium-ion cost parity, set to get cheaper - Energy Storage By 2050, sodium-ion batteries with fast learning rates could deliver storage at 11–14 €/MWh - cheaper than lithium-ion at 16–22 €/MWh - while also offering higher energy-to-power ratios and high cycle...

‘By 2050, sodium-ion batteries with fast learning rates could deliver storage at 11–14 €/MWh – cheaper than lithium-ion at 16–22 €/MWh…stationary battery demand reported to date – ranging from 67.9 to 106.5 TWh by 2050…feature higher energy-to-power ratios (6–7 h)’

No-brainer: if you have a retired fossil plant with an interconnection - add battery storage.

#energysky

news.duke-energy.com/releases/duk...

Show me the rate base !

Second phase:

"Construction of a second BESS – Duke Energy’s largest, a 167‑MW, four-hour system – will begin in May on 10 acres where the coal plant’s now-demolished emissions control system once stood."

FIrst phase- 50 MW/200 MWh

"The first BESS, at a cost of approximately $100 million, was completed under budget and ahead of schedule, serving customers beginning in November. Final testing is being completed this month. "

No-brainer: if you have a retired fossil plant with an interconnection - add battery storage.

#energysky

news.duke-energy.com/releases/duk...

Good to see the New England grid expanding its portfolio...

3) @caiso.com recently released its peak load history - see below. With 15 GW of storage now available, these infrequent peak loads are much easier to handle than in the past.

Source: www.caiso.com/documents/ca...

#energysky

2) Thanks to @gridstatus.io we can also see that the battery charge to load ratio is near 40%. This was unthinkable a few years ago.

#energysky

1) Battery storage on #CAISO is now being regularly charged at over 10 GW.

Source: www.caiso.com/todays-outlo...

#energysky

1) ERCOT released its 2025 Demand and Energy report
www.ercot.com/files/docs/2...

Although overall demand increased by 26.2 TWh, fossil generation was flat, with an increase in coal mostly offset by a decrease in gas.

Most of the new demand was met by a solar increase of 19.6 TWh.
#energysky

Connecticut puts EV chargers at the DMV – finally, a perk Connecticut has installed 36 Level 2 EV chargers at DMV offices, so drivers can now charge while waiting for licenses and registrations.

Here is something every state should have/look into - EV charging in DMV lots.

It also makes sense to add solar in these parking lots.

No-brainer.

#energysky

electrek.co/2026/01/02/c...

Just throwing this out there... Oil price over the past year.

#energysky

More interesting factoids from this report...
#energysky

From ERCOT Monthly November 2025
www.ercot.com/files/docs/2...

Note: This monthly update provides a variety of grid statistics.

One example:

What's the over/under year on Ford pulling out of the energy storage business?

Using 2030, I am taking the under.

#energysky

California lawmakers urge CPUC to enforce utility interconnection timelines A coalition of 18 California legislators has formally urged the California Public Utilities Commission (CPUC) to enforce regulations under "Rule 21" regarding the interconnection of customer-sited sol...

1/3 I thought I'd stay close to home with my posts today. My Assemblymember @dawnaddis.bsky.social is one of the 18 legislators. And my provider, PG&E is indeed holding up my interconnection. Go get 'em Dawn! 🔌💡

pv-magazine-usa.com/2025/12/01/c...

Hey, a TeraWatt here, a TeraWatt there, and before you know it...

Some good info on battery safety in this thread.

#energysky