It's Wednesday. Illinois quietly finished building a power plant years ago, a few thousand rooftops at a time. Nobody filed an interconnection request for it.
In today's edition:
🔌 Big Story: Sunrun puts existing rooftops to work for data centers
⚡ Quick Hits: Hyundai brands its V2X, Boston taps the harbor
💰 Capital: $857 million for distributed solar
📋 Policy Watch: the Northwest plans for 50% more demand
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The Big Story
Sunrun commits home solar and storage to data center capacity
Voltus and Sunrun signed a multi-year agreement, announced Monday, under which Sunrun supplies capacity from thousands of already-installed residential solar and storage systems in the parts of Illinois served by PJM and MISO. The capacity feeds Voltus's "bring your own capacity" product, a framework in which a hyperscaler finances a virtual power plant program in a capacity-constrained region and an aggregator delivers the megawatts to the local utility. Sunrun senior vice president of public policy Amy Heart told Latitude Media the deal commits "many megawatts of capacity," and neither company disclosed a figure. Voltus launched the first formal BYOC product for data centers last fall with Cloverleaf Infrastructure, and Google became its first hyperscaler customer with 100 MW of flexible capacity in PJM.
Aggregate distributed generation and storage resources and then provide the grid with new electrons like a traditional power plant, for utilities and now the wholesale market to rely on.
The megawatts come from systems already installed and operating, and Heart said laddering into Voltus's existing BYOC product gets electrons to market more quickly than new supply could.
PJM has become the primary testbed for the framework, with a market design under consideration at FERC that Voltus co-founder and CEO Dana Guernsey told Latitude Media this spring could unlock more than 10 GW of flexible capacity.
Heart said wholesale market rules still need updating "to allow and accurately credit injections of residential solar-plus-batteries to maximize the full capacity value."
Source: Latitude Media
Quick Hits
Technology milestones from across the grid
A car company's grid ambitions, a harbor turned heat source, and the physics problem nobody puts in a press release.
Hyundai Motor Group consolidated its vehicle-to-everything services under a new brand, AllDayEnergy, which the company says is the launch point for bidirectional charging technology across Hyundai, Genesis and Kia. Utility Dive
ARENA awarded UNSW engineers an AU$6.52 million grant for a three-and-a-half-year project on protection and relay operation in low-inertia, inverter-based grids, the unglamorous question that decides how far grid-forming batteries can displace synchronous machines. Energy-Storage.news
Boston and Cambridge are advancing three projects that would draw heating and cooling for large institutional buildings from harbor and river water, Canary Media reported, with one under construction and two still in study and design. Canary Media
CBRE forecasts European data center capacity will grow about 20% this year to roughly 13 GW, a demand curve arriving on grids that already restrict new connections in several European hubs. Data Center Dynamics
US utilities are reweighting grid planning toward wildfire resilience after years of destructive fire seasons, Axios reported, a shift that competes for the same capital as load growth. Axios
The Capital Stack
Dimension Energy raises $857 million for distributed solar
Distributed solar developer Dimension Energy closed $857 million, a $200 million increase to its credit facility plus $657 million in construction debt and tax equity, to fund 29 distributed solar projects across the US, according to Tech Startups. The money is debt and tax equity rather than growth equity, which points to lenders still underwriting community solar portfolios at scale.
Source: Tech Startups
Also in the capital stack:
NextEra secured $3.3 billion for two natural gas projects in Texas and Pennsylvania, a combined 10 GW aimed at data center load, which Data Center Dynamics attributes to the US Department of Commerce and the Government of Japan. The fastest answer to a hyperscaler's speed-to-power problem is still often a turbine. Data Center Dynamics
Policy Watch
The Northwest Power and Conservation Council released a draft Ninth Power Plan calling for roughly 9 GW of renewables, 2.1 GW of gas and 5.2 GW of storage by 2032, with regional demand projected to grow about 50% over that period, according to Utility Dive. A regional plan leaning this hard on storage sets the procurement signal for utilities across four states. Utility Dive
California lawmakers advanced two virtual power plant bills out of the Assembly Appropriations Committee, aimed at expanding aggregated distributed resources and reducing rates, Energy-Storage.news reported. Statutory backing would give aggregators something firmer than a pilot tariff to build product against. Energy-Storage.news
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