Solid-state transformers, microgrids, and AI power dominate this week's energy infrastructure news.
Solid-State Transformers Gain Traction for AI and Grid Modernization
New applications and advancements highlight SSTs' potential for high-power demands.
Solid-state transformers are emerging as a key technology for managing the intense power needs of AI accelerators, with advancements in SiC modules and telemetry. The US Army is also exploring their use in forward-deployed microgrids, signaling broader adoption potential.
- onsemi EliteSiC Is the Third Silicon Carbide MOSFET Supplier the Solid-State Transformer Industry Depends On Behind Wolfspeed and Infineon
- The AI Accelerator Power Transient Profile: 50% TDP Swings in Milliseconds and Why Solid-State Transformers Are the Only Power Architecture That Can Follow It
- Solid-State Transformer Telemetry and IoT Integration: The Operational Data Layer That Iron-Core Transformers Never Had
Grid Modernization and Energy Storage Receive Major Investment Boost
Significant funding is being directed towards grid upgrades and energy storage solutions.
The DOE is investing $1.9 billion in grid reconductoring, alongside other grid support contracts. Meanwhile, the energy storage sector is seeing substantial new financing, with a notable deployment of the first grid-scale sodium-ion battery.
- Peak Energy and RWE Deploy First Grid-Scale Sodium-Ion Battery
- GridStor Closes 20 Million Financing for 150 MW Battery
- DOE Announces $1.9 Billion SPARK Program for Grid Reconductoring
Power Quality and Market Dynamics Shape Grid Operations
New software and market rules are addressing grid stability and compliance challenges.
GE Vernova's GridBeats software aims to enhance substation operations, while new standards address harmonic limits from AI and EV loads. Market clearing prices are stabilizing, and reserve margins are being set for upcoming seasons.
- GE Vernova Launches GridBeats APS Software-Defined Substation
- State of Power Quality & Standards: Grid Operators Face October Compliance Deadline as AI and EV Loads Push Harmonic Limits
- SPP Sets 36% Winter Planning Reserve Margin
Data Centers Grapple with Escalating Power Demands and Grid Strain
The rapid growth of AI and data centers is creating significant power challenges for the grid.
The demand for high-density AI racks is pushing immersion cooling market growth, while US data centers face a substantial power shortfall by 2028. This highlights the increasing strain on existing grid infrastructure and the need for onsite generation solutions.
Microgrid Deployments Accelerate with Federal and Tribal Funding
Government investment is driving significant growth in microgrid projects across the US.
Federal contracts and tribal funding are fueling a push for microgrid infrastructure, with recent awards for Fort Liberty and solar microgrids for four tribes. These projects aim to enhance energy resilience and integrate renewable sources.
Immersion cooling for AI racks crossed $931 million this week as individual racks exceeded 100 kW, while Pure DC commissioned a 110 MW off-grid microgrid in Dublin. However, the sector faces a looming 49 GW power shortfall by 2028, prompting 27% of U.S. facilities to shift towards onsite generation by 2030.
State of Data Center Power: 27% of U.S. Facilities Shift to Onsite Generation by 2030 as Grid Integration Challenges MountGridStor closed $20 million in financing for a 150 MW battery project, and Peak Energy and RWE deployed the first grid-scale sodium-ion battery. This activity contributes to $1.35 billion in new financing and over 20 GWh in motion for the sector.
State of Battery & Energy Storage: $1.35 Billion in New Financing and 20+ GWh in MotionSandhills secured a $15.9 million contract for Fort Liberty, and Washington awarded $5.3 million to four tribes for solar microgrids. Federal contracts are driving a significant infrastructure push through mid-2026 for the sector.
State of Microgrids & Onsite Generation: Federal Contracts Drive B+ Infrastructure Push Through Mid-2026Megawatt-scale charging infrastructure has arrived, with bidirectional power now reaching 750 kW, marking a new threshold for the EV charging sector.
State of EV Charging: Megawatt-Scale Infrastructure Arrives as Bidirectional Power Reaches 750 kWGE Vernova launched its GridBeats APS software-defined substation, and Amtech delivered outdoor harmonic filters for pump stations, as grid operators face an October compliance deadline with AI and EV loads pushing harmonic limits.
State of Power Quality & Standards: Grid Operators Face October Compliance Deadline as AI and EV Loads Push Harmonic LimitsThe DOE announced a $1.9 billion SPARK program for grid reconductoring, and Optimum Low Voltage LLC secured a $101,701 contract for grid support. SPP set its winter planning reserve margin at 36%, while PJM's 2026/27 incremental auction closed. The sector added 58 GW as markets cleared lower and demand response rules stabilized.
State of Grid Policy & Markets: 58 GW Added as Markets Clear Lower and Demand Response Rules Stabilizeonsemi became the third SiC MOSFET supplier for solid-state transformers, joining Wolfspeed and Infineon, as AI accelerators' transient power demands highlight the need for solid-state transformer capabilities. Mitsubishi Electric is pursuing a quieter strategy with SiC modules for rail and industrial clients, while the US Army Research Lab is testing medium-voltage solid-state transformers in microgrid programs. Megawatt charging is emerging as a 2026 threshold, though solid-state transformers remain in single-digit deployments.
State of Power Electronics: Megawatt Charging Emerges as 2026 Infrastructure Threshold While Solid-State Transformers Remain Single-Digit Deployments