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/daily ·27 AUG 2026 ·THURSDAY ·2 MIN READ ·5 STORIES

13 GW Texas Discharge, 60K Cycles, 6 MWh Boxes

Texas batteries achieved the rare feat of making grid reliability boring while new cells from labs and factories pushed cycle life and pack density into new territory.

01 / The Day

THURSDAY 27 AUG 2026, ranked

05

Texas Grid Batteries Log 13 GW Discharge, Cut Peak Prices in Half

ERCOT's 14.96 GW / 24.6 GWh battery fleet discharged a record 13,256 MW on August 23, keeping real-time 4pm peak prices near $46/MWh -- roughly half the $85/MWh seen at the same point in 2023, with evening spikes that once approached the $5,000/MWh statutory cap now largely absent. Zero conservation appeals were issued this summer, versus six in late August 2023.

  • ERCOT battery fleet peaked at 13,256 MW discharge on Aug 23; installed base 14.96 GW / 24.6 GWh
  • 4pm peak real-time prices roughly $46/MWh this summer vs $85/MWh in 2023; evening cap spikes effectively eliminated
  • One analyst noted batteries have cannibalized their own lunch by suppressing the price events that justify their returns
Why it mattersAt sufficient scale, grid-scale batteries change market structure, not just reliability metrics -- the Texas summer is the clearest empirical proof yet.
01 heatmap.news↗

Zinc-Iodine Battery Prototype Achieves 60,000 Cycles with 3-Minute Charge

Flinders University researchers developed an aqueous zinc-iodine battery that survives 60,000 charge-discharge cycles at 150 mAh/g with a three-minute charge time, using a low-cost cyclodextrin-based polymer to cage polyiodide shuttle ions and prevent degradation. The work uses no lithium, cobalt, or nickel.

  • 60,000 cycles at 150 mAh/g with 3-min charge; alternatively 200 mAh/g at 8,000 cycles with 7-min charge
  • Biodegradable cyclodextrin polymer traps polyiodide anions, solving the primary degradation mechanism
  • Australia holds 20-28% of global zinc reserves, giving the technology a potential domestic supply chain advantage
Why it mattersAqueous, non-flammable zinc-iodine at 60,000 cycles significantly exceeds typical LFP grid storage longevity targets without any critical mineral dependencies.
02 pv-magazine.com↗

CATL Tener S Squeezes 6.017 MWh into a Standard 20-Foot Container

CATL's Tener S grid storage system delivers 6.017 MWh in a standard 20-foot container at 1,500 V DC, claiming zero degradation and an operating range of -35 to 55C -- a 62% capacity increase over the EnerC Plus (4.073 MWh) with the same footprint. Early deployments are underway in Spain and Australia.

  • 6.017 MWh rated capacity, 45 metric tons, 20-foot container; 1,500 V DC; IP55 rated
  • 62% more energy per container than CATL's prior EnerC Plus; zero degradation claim over warranty period
  • Targets two-hour duration utility applications; deployments confirmed in Spain and Australia
Why it mattersMore megawatt-hours per container is a direct cost lever -- fewer units, less balance-of-plant cabling, and a smaller project footprint per GWh.
03 pv-magazine.com↗

BYD Blade Battery 2.0 Charges 10-70% in Five Minutes at 1,500 kW

BYD opened orders for the Great Han flagship sedan equipped with Blade Battery 2.0 and a 1,500 kW Flash Charging system, hitting 10-70% state of charge in five minutes and 10-97% in nine, while maintaining over 1,000 km of CLTC range. The battery passed combined nail-penetration and ultra-fast-charging stress tests without thermal event.

  • 1,500 kW peak charge rate; 10-70% in 5 minutes, 10-97% in 9 minutes; 1,000+ km CLTC range
  • Blade Battery 2.0 survived simultaneous nail-penetration and flash-charging stress test without fire or thermal runaway
  • Priced under $40,000 in the Chinese market, placing 5-minute charging on a mass-market LFP platform
Why it mattersFive-minute charging to 70% on an LFP-adjacent, cobalt-free chemistry closes the last meaningful experiential gap between EVs and gasoline refueling at mass-market price points.
04 electrek.co↗

Ford Energy Enters Grid Storage with 5.45 MWh BESS, 20 GWh/yr Kentucky Plant

An analysis of Ford Energy's grid-scale BESS product reveals 512Ah LFP cells delivering 5.45 MWh per 20-foot container across two tiers -- FE-250 (2-hour) and FE-450 (4-hour) -- with production planned at 20 GWh per year from a Kentucky gigafactory eligible for domestic content incentives. First customer deliveries are expected in late 2027.

  • 512Ah LFP cells; 5.45 MWh per 20-foot container; FE-250 (2-hr) and FE-450 (4-hr) product tiers
  • 20 GWh/yr production target at Kentucky gigafactory; qualifies for domestic-content compliance bonuses
  • Competitors field 587-628Ah cells at 5-6.26 MWh per container; Ford has not published round-trip efficiency
Why it mattersA major US automaker committing gigafactory-scale production to the grid storage market signals that the sector is large enough to attract manufacturing investment from outside the dedicated battery industry.
05 energy-storage.news↗
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The Daily Archive

/THU 27 AUG13 GW Texas Discharge, 60K Cycles, 6 MWh Boxes/WED 26 AUGMichigan's Gigafactory, Geothermal Goes Live, Shell Exits Home Batteries/TUE 25 AUGGas for the AI Grid/MON 24 AUGChinese cells, an Australian megabattery, and standards for a chemistry that isn't shipping yet/SUN 23 AUGChina's solar province, America's grid math, and electric aviation's first lap/SAT 22 AUGSaturday Spark/FRI 21 AUGBring your own electrons/THU 20 AUGFactories going live/WED 19 AUGForm's $750M, CATL's carbon decree, and what 4.3 cents means/TUE 18 AUGTuesday: the cheap-cell era, revised/MON 17 AUGCells Back Online/SAT 15 AUGScale, tangibly/FRI 14 AUGThe Quarter the Consumer Took Over/THU 13 AUGScotland gets a big battery, China gets the biggest/WED 12 AUGThe grid doubles, the river runs hot, and Amazon builds America's biggest gas plant/TUE 11 AUGMaking It Here/MON 10 AUGA gigawatt-hour in Rajasthan, a Joby milestone, and the cheddar test/SUN 09 AUG12.8 GWh in China, solar tariff shock, and RWE's billion-dollar exit/FRI 07 AUGUS hits polysilicon; Ørsted stacks 500 MWh in Texas/THU 06 AUGGrid delays, grid storage, and grid-scale bets/WED 05 AUGHome batteries scale up, microreactors raise $1B, and China ends the solar price war