Published on May 8, 2026
What do the cities of San Diego CA, San Antonio TX, Charlotte NC and the Meta Hyperion, Homer City or Meta Prometheus data center campuses all have in common? They all require more than 1 GW of power. Managing loads this large, whether in front of or behind the meter, involves many elements that need to work in unison. In an era where AI-driven loads have redefined energy requirements and challenged the traditional electrical supply techniques, your toolbox must include new elements and new solutions.
At Gray Oak Power, we know that the correct microgrid architecture is necessary to bridge the gap between your mission-critical power needs and utility and thermal generators limitations. By providing the right on-site combination of generators, batteries, filters and fast control systems, we ensure that high-load data centers and industrial facilities remain operational and resilient, even under the large and fast load swing conditions that characterize AI datacenters.
A recent but core problem facing industrial data centers developers, power suppliers, utilities and regulators today is the large swings in the power requirements of computing loads, particularly those associated with AI training modes.
The load of a data center operating at hundreds of megawatts may swing from full to 20% load and back in fractions of a second, as they alternate between compute/training-intensive and communication/saving-intensive phases, as shown in the figure from NERC.
Neither utilities nor the mechanical equipment powering behind-the-meter generation can directly accommodate these large swings. ERCOT, for instance, is proposing to limit load variations to 10 MW within any 5 second period, clearly much less than what the AI load needs. This gap between what the grid/on-site generation can provide and what modern data centers require threatens to derail the growth of AI. Gray Oak Power can bridge this gap by designing and including the right combination of BESS, filters, reactors, and fast control and switching technologies as part of the energy solution we offer.
Gray Oak Power is backed by Denham Capital’s Sustainable Infrastructure team. This partnership brings world-class private equity and debt investment experience to the power sector. Our primary focus is supplying reliable, sustainable power to data centers and critical infrastructure, ensuring our clients have the financial and technical backing to execute at scale. What makes Gray Oak Power different is its ability to design microgrids with the future power plant operations in mind. We believe it is not enough to design what seems to work on paper; knowing that the designed microgrid will actually work in real life at high reliability based on relevant power plant operation experience is crucial.
A microgrid is a self-contained energy system that serves a specific discrete geographic footprint, such as a data center campus or industrial park. It consists of three primary components: local energy generation (like turbines or solar), energy storage (BESS), and a control system. Unlike traditional backup systems, a microgrid can operate while connected to the central grid or break away and function autonomously in an island mode, providing continuous power regardless of utility status.
