Energy & cooling · Page 2
Mining news and original analysis with dated primary sources.
Vattenfall selects Fluence for 254 MW Brunsbüttel battery project
The October 14 agreement covers a planned storage facility exceeding 1,000 MWh. Construction is expected in 2027, with operation and connection to the 50Hertz network planned for end-2028.
AEP plans $4 billion, 702 MW fuel-cell project for Google near Cheyenne
AEP’s October 14 announcement describes a 20-year Google PPA and construction planned in 2026, with full operation expected by end-2028. Carbon capture is planned; this is not 702 MW already generating.
DOE emergency order lets PJM call backup generation through October 16
Order 202-26-50, issued October 12 and effective October 13–16, provides conditional emergency dispatch authority. Backup resources are a last resort before or during EEA 3; forecasts are not confirmed outages.
DG Matrix introduces Interport 360 Flex and software for 800 VDC AI power
DG Matrix’s October 13 announcement combines modular solid-state transformer cells and Interport OS for NVIDIA MGX infrastructure. The design targets an AC-to-800 VDC transition; measured site-wide savings are not supplied.
Wärtsilä signs Aruba battery project: 35 MW, 70 MWh and a 2028 handover target
Wärtsilä’s October 13 agreement with WEB Aruba covers a 35 MW / 70 MWh battery and energy-management services. The nominal energy-to-power ratio is two hours; final handover is scheduled for Q2 2028.
Wiwynn outlines 6 kW cold plates and new thermal designs at OCP
The October 12 release separates component cooling, thermal-performance and power-delivery-loss claims. None establishes an 80% reduction in whole-facility electricity use or ASIC-miner compatibility.
Stark Power agrees to buy a 262 MW plant with a planned four-hour battery
The October 8 agreement covers Cottage Grove’s operating gas plant and a future 80 MW / 320 MWh battery. Closing is expected in Q4 2026; battery operation is targeted for 2028.
Pacific Rubber joins OCP to work on liquid-cooling seal cleanliness
Pacific Rubber’s October 9 announcement says it has joined OCP as a Bronze member and plans to contribute seal-contamination research. This is a supplier-led standards initiative, not an adopted universal rule or verified cooling upgrade for every hydro ASIC.
DOE backs PJM reforms to make large loads fund new power
DOE’s October 9 position supports allocating new generation and infrastructure costs to large electricity users. This is a regulatory position and proposed reform, rather than an already effective tariff for every data center.
Shell announces NVIDIA DSX Ready qualification for its direct liquid cooling fluid
The October 8 supplier announcement concerns direct liquid cooling. It does not certify the fluid for every hydro ASIC or establish measured energy savings at a mining farm.
Duke Energy proposes broader cost protections for North Carolina large loads
The October 7 settlement would extend protections to qualifying 50 MW loads. Regulatory approval is pending; upfront connection costs and energy charges need separate planning.
DCX will showcase liquid cooling with LITEON at OCP Summit 2026
DCX’s October 8 announcement confirms a joint presence at LITEON’s booth in San Jose. We examine the cooling questions that matter to high-density computing and hydro-cooled mining.