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ERock, Inc. helps data centers, utilities and large businesses obtain power while awaiting grid connection and keep operating during grid outages. Its ERock Platform combines modular RockBlock natural-gas generators with design, installation and long-term support. Embedded Granite software monitors equipment and helps schedule maintenance. Customers include Microsoft, Entergy and Walmart.
Customers or third-party investors buy and own the systems; ERock does not own or lease them. Buyers pay at signing and project milestones, with the balance due after testing and commissioning. System sales and installation together provide the larger share of revenue, while ongoing services also contribute substantially. Once a system is operating, its owner pays monthly fees under long-term maintenance and asset-management agreements.
After grid connection, ERock can also manage when customer-owned generators run. With the owner's authorization, it uses available capacity when the customer does not need dedicated output, helping the owner reduce grid purchases or earn compensation for supporting the grid. ERock acts as an advisor or agent, rather than owning the generating assets.
Revenue and contracted orders depend heavily on a small group of customers. Texas supplies most revenue, and recent order growth has come predominantly from Texas data-center projects. Near-term revenue depends substantially on completing contracted installations, which require customer financing, equipment supply and project approvals. Grid connection requires utility and regulatory approval, while local tariffs and rules can restrict whether owners receive compensation for surplus power; some jurisdictions also limit new natural-gas connections.
The risk section is the longest, dullest part of the filing. This keeps only what can really hurt you: where it hits, how hard, when it plays out.
Every company claims an edge. Each one is checked against hard numbers like margins and returns: which hold, and which line gives way first.
ERock’s growth hinges on delivering its predominantly Texas data-center backlog while competing with generation suppliers including Cummins and privately held Volta Grid.
INNIO competes with ERock for data-center, utility and industrial buyers, selling modular gas-engine power equipment and long-term upkeep where ERock supplies gas-generator systems and services. INNIO’s data-center equipment orders are the clearest line to watch for demand in this shared market.
Bloom Energy offers ERock’s data-center, industrial and utility buyers another way to generate onsite power: modular fuel cells rather than gas generators, with both companies selling long-term maintenance. Watch Bloom’s Energy Server sales, which account for nearly all its product revenue, rather than its hydrogen-making electrolyzer.
Generac competes for the data-center and commercial and industrial customers buying ERock’s power systems for use before grid connection or during outages. Its generation-equipment business in those markets is more relevant to ERock than its residential power products.
Caterpillar’s diesel and natural-gas engines compete with ERock’s gas-generator systems in power generation close to customers’ sites. For this rivalry, watch Caterpillar’s power-equipment business rather than its construction and mining machinery sales.
GE Vernova competes with ERock in distributed generation, selling power-generation equipment and services to power systems while ERock supplies onsite gas-generator systems. Its Power segment is the relevant business to follow, rather than treating all its wind and electrification activity as an ERock signal.
Forgent Power Solutions and ERock both depend on data-center construction spending: Forgent sells equipment that distributes electricity, while ERock sells onsite generation systems. Watch Forgent’s data-center revenue, which supplied about 59% of fiscal 2026 revenue, alongside ERock’s backlog growth driven predominantly by Texas data-center projects.
Microsoft is an ERock customer, so its cloud and AI data centers’ need for reliable power matters directly to ERock’s power-system business. Microsoft’s cloud and AI data-center expansion is the customer activity to watch, rather than its PC or gaming sales.
Entergy pays ERock as a utility customer and brings it service revenue through power programs offered under Entergy’s own name. Entergy sells electricity to utility customers; watch its customer-resiliency programs and utility-sponsored projects for the connection to ERock, rather than electricity sales alone.
Walmart, which sells goods through stores and online, is a buyer of ERock’s distributed power systems for retail-site backup power. Since 2016, ERock has delivered more than 450 MW to Walmart and H-E-B combined—not to Walmart alone—showing the scale of this retail customer base.
FuelCell Energy gives utilities and onsite-power customers an alternative to ERock’s gas generators by selling stationary fuel-cell systems and long-term servicing. Its product sales and service agreements show uptake of that alternative; revenue from electricity sold by plants it retains is a different business.
Fluence Energy competes with ERock for some utility and grid-support uses, selling batteries and controls that schedule stored power against ERock’s dispatchable gas generation. Watch its utility-scale storage orders and market-dispatch capabilities for competition in grid support, not as a direct substitute for every ERock backup-power project.
INNIO N.V. earningsINIO
INNIO's report will show data-center demand for modular gas-engine power equipment, the market where its systems compete most directly with ERock's.
Read INNIO's data-center equipment orders alongside ERock's progress converting contracted backlog into product and installation revenue. Strong INNIO orders with ERock converting its backlog would point to a growing market, but also an active rival; weak INNIO orders would make fresh market demand less certain, even if ERock is delivering work already contracted.
Microsoft Corp earningsMSFT
Microsoft's report will show the pace of cloud and AI data-center expansion, an important clue to the power needs of ERock's data-center customers.
Read Microsoft's cloud growth alongside its investment in data-center infrastructure. Strength in both would support the view that expansion is sustaining demand for reliable power, a helpful market signal for ERock; slowing growth or weaker investment would make that support less certain, but would not show whether Microsoft will place orders with ERock.
Fed Interest Rate Decision
The Fed’s interest-rate decision signals whether borrowing costs are rising or falling, which can make it harder or easier for ERock’s data-center, utility and commercial and industrial customers or their investors to finance its high-upfront-cost power systems and affect ERock’s system sales.
Expected4.0%Last release4.0%
If it comes in above expectations
Higher-than-expected rates can make customer or investor financing harder and costlier, potentially delaying or reducing purchases of ERock systems and the related product and installation revenue.
If it comes in below expectations
Lower-than-expected rates can ease financing costs for customers or investors, potentially helping ERock’s high-upfront-cost system purchases proceed and supporting product and installation revenue.
ERock, Inc. earningsThis company
ERock had about $1.3 billion in contracted power-system sales backlog as of March 31, 2026, and this report will show whether it can turn that work into revenue while protecting margins.
Read power-system product and installation-services revenue alongside adjusted gross margin, which excludes reimbursable variable revenue and the matching costs. If those revenues grow while the margin holds or rises, ERock is converting contracted work at sounder economics; if revenue stalls or the margin falls, delays, cost overruns or cost pressure may be eroding the backlog.
