SEC Filing Document

Company: ERock, Inc.
Ticker: 
CIK: 2110029
Filing Type: S-1
Document Type: S-1
Date Filed: 2026-05-15
Accession Number: 0001193125-26-227199
Exchange: 
SIC Code: 3620
SIC Description: Electrical Industrial Apparatus
URL: https://www.sec.gov/Archives/edgar/data/2110029/000119312526227199/d12401ds1.htm

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Comprehensive Service Coverage : O&M services include scheduled maintenance, unscheduled repairs, warranty management, inventory and spare parts management and compliance with regulatory requirements. Our technicians are trained to service the entire generator system, including engine, alternator, cooling, lubrication and control systems, and benefit from working on a standardized RockBlock system used across our fleet, giving them extensive experience with the same equipment, which we believe leads to increased productivity, lower costs and improved quality and consistency. • Performance Optimization : Through advanced data analytics and benchmarking, we compare performance across units, sites and fleets to identify outliers and optimize asset operation. Granite enables dynamic adjustment of maintenance schedules based on real-time operating conditions and historical data, reducing unplanned outages and lowering total cost of ownership. • Customer Support and Reporting : Customers receive regular performance reports, maintenance updates and direct access to our support team for operational questions or needs.

Asset Management. We
provide comprehensive monetization services, acting as advisor or agent for owners of our deployed power systems of 761 MW, to optimize grid revenues through electricity and natural gas market participation, hedging and dispatch strategies. We
partner with customers early in the site assessment and feasibility phase to evaluate potential market programs and revenue opportunities, integrating monetization considerations directly into the initial contracting and business-development
process. Our approach focuses on evaluating the possible market programs or revenue streams best suited for our power systems, helping customers select monetization strategies designed to maximize the value of their assets by seeking to obtain the
highest risk-adjusted returns. We also support hedging and risk management for customers and develop programs tailored for specific power markets.

White Label Program Services. We partner with utilities, such as Entergy, to design and execute white label resiliency
programs, enabling them to offer branded reliability solutions. These programs allow our partners to deliver differentiated, customer-facing reliability offerings under their own brand while leveraging our expertise and infrastructure.

Financing and Contract Support Services. To facilitate project development, we offer robust financing and contract
support, coordinating and arranging project financing and providing guidance on contract structuring and risk management. Our flexible asset ownership and value-sharing models—including Resiliency-as-a-Service and third-party financing vehicles—enable customers to deploy solutions with minimal upfront capital and predictable long-term costs.

Policy Advocacy and External Affairs. Our team of policy experts actively monitors and shapes policy at the local,
state and federal level to support current and prospective customers’ use of natural gas onsite generation in their overall energy strategy. Working directly with and through associations, these educational, regulatory and technical activities
aim to secure and protect market access, grid services compensation, gas supply and other recognition for clean and reliable onsite generation.

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Our Competitive Strengths

We believe the following characteristics differentiate us from our peers and uniquely position us to execute on our strategy to
create value for our stakeholders:

Reliable, Fast-Response Generator Technology. Our patented natural gas
generator technology achieves diesel-equivalent transient performance response requirements, which is a critical capability for data centers that experience highly dynamic electrical loads. These facilities routinely see rapid fluctuations in power
demand within milliseconds due to workload spikes, server startups and cooling system adjustments. Modern data centers, particularly large, high-density facilities supporting AI training, cloud computing and other high-performance workloads, and
next-generation semiconductor chips such as AI accelerators, GPUs and custom silicon are placing growing demands on electrical power systems. These environments draw enormous and highly variable amounts of electricity and are far more sensitive to
power quality than prior generations of computing infrastructure. Even very brief frequency deviations, voltage dips, or other grid disturbances can cause system instability, performance degradation, or costly downtime. As a result, these facilities
increasingly require the ability to maintain continuous operation during short-duration grid disturbances, supported by fast, on-site frequency control and power stabilization capabilities. Strong transient response enables stable voltage and
frequency during these sudden changes and supports seamless transitions between grid power, on-site generation and battery storage systems, helping to prevent equipment malfunctions, data corruption and costly
downtime. Our natural gas generators also offer meaningful reliability advantages over diesel-based solutions, which depend on continuous fuel deliveries that can be disrupted by severe weather, transportation constraints or supply-chain
interruptions. By contrast, our power systems operate on natural gas delivered through a resilient underground natural gas infrastructure, which reduces the operational risks associated with refueling. We believe that the combination of
diesel-equivalent transient performance and a reliable fuel supply positions our power systems to meet the demanding requirements of mission-critical data center operations.

Comprehensive Partner for Reliable Power Solutions. We serve as a comprehensive partner for reliable, resilient and
rapidly deployable distributed power solutions. Through our vertically integrated ERock Platform, we provide turnkey, cost-effective solutions that supplement and optimize traditional grid power and infrastructure. Our platform encompasses the
entire asset lifecycle—from design, initial site development, interconnection and permitting to engineering, procurement, construction, commissioning, operations, maintenance and asset management—under a single, coordinated delivery
model that reduces complexity and streamlines execution for our customers. Unlike the fragmented offerings of our competitors, our ERock Platform integrates our ESI, O&M and asset-management services capabilities with our deep development,
operational and market domain expertise in multi-purpose, distributed power systems to deliver our patented natural gas generator power systems engineered for 99.999% reliability. This comprehensive proficiency allows us to deliver value to our
customers from inception of a project through the useful life of the asset. By leveraging our deep engineering and construction expertise, we are able to design, assemble and rapidly integrate our distributed power systems tailored to customer needs
at scale. Once commissioned, our in-house market operations specialists and software-enabled asset management services allow customers to leverage the multi-purpose design of our power systems—backup,
bridge and grid services—to monetize their distributed assets through grid services, demand response and market participation, supporting customers to maximize asset value and reduce total cost of ownership. Our ERock Platform is reinforced by
our extensive field-services expertise, built over a decade of operating at hundreds of sites, and proprietary, purpose-built Granite software that captures extensive real-time telemetry and operational performance data, enabling predictive
analytics, dynamic maintenance scheduling and system optimization. Whether deployed for bridge, dispatchable or backup power applications, our ERock Platform’s comprehensive capabilities uniquely position us to deliver accelerated
time-to-power and firm resiliency solutions.

Highly Differentiated, Proprietary Power System Serving Multiple Use
Cases. Our highly differentiated, proprietary natural gas power systems are engineered to serve multiple mission-critical use cases through a single integrated power system. Leveraging our quick-response, patented generator technology and
modular, emissions-advantaged design, our power systems provide cost-effective, resilient and turnkey solutions for bridge,

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dispatchable and backup power applications. As bridge power, our power systems enable the rapid deployment of reliable capacity that arrives with customer load demand and mitigates delays
associated with long-lead grid capacity upgrades. As dispatchable capacity, our power systems function as on-demand, fast-response resources that support grid stability and help large energy users balance load demand and participate in market-driven
dispatch strategies. As backup power, our power systems deliver highly reliable continuity for mission-critical operations during grid disruptions or extreme weather events such as extreme temperatures, earthquakes, hurricanes, typhoons, derechos,
wildfires and flash floods. Our power systems come integrated with our purpose-built Granite platform, which enables real-time monitoring, predictive diagnostics and dynamic asset optimization. With advanced data analytics, sub-second data collection and fleet-wide benchmarking, Granite supports preventive maintenance, remote dispatch and market participation, supporting operational efficiency and maximizing asset value. Our power
systems multi-use capability, combined with best-in-class emissions, a compact footprint and a standardized, scalable packaging architecture, represents a unique customer value proposition, offering superior performance, rapid deployment and
compliance with the most stringent standards.