Need another 1–5 MW before the utility can deliver?

For an enterprise-owned data center, another 1–5 MW can decide when a business initiative moves forward: a bank expanding digital services, a university adding research computing, or a pharmaceutical company putting AI to work.

These facilities support essential workloads. When the utility’s schedule falls behind the business schedule, owners need a credible way forward that protects uptime, meets local requirements, and fits the facility’s long-term plans.

On-site generation and storage deserve an early look. The starting point is the additional facility load, including cooling, and whether that demand runs continuously or only during certain hours.

Generator systems can provide sustained power when selected for the intended duty. Manufacturers rate the same generator differently depending on its duty, and each rating carries load limits. In Caterpillar’s gas ratings, for example, prime power allows unlimited hours at a varying load averaging 70% of the prime rating, continuous power assumes a steady load, and standby assumes limited annual hours. Match the rating to how the facility will actually run the equipment.¹ Gas-fired systems also depend on adequate gas service. Existing emergency generators should not be assumed suitable or authorized for everyday operation; their ratings and operating restrictions need checking.²

Fuel cells offer another route to continuous generation. Commercial offerings include FuelCell Energy’s 1.25 MW and 2.5 MW (nameplate) systems and Bloom’s modular Energy Server, which Bloom describes as operating 24/7.^{3, 4} Evaluate the proposed footprint, emissions, fuel supply, service support and lifecycle cost against your site’s needs. A published product specification is a starting point for that conversation, not a commitment.

Battery storage can strengthen the overall system. Depending on the design, it can help cover demand peaks and support transitions between power sources. But it needs energy to recharge. For an added load that runs continuously, storage must be paired with sufficient utility supply or generation.^{5, 6}

The equipment is only part of the project. Before committing, establish:⁷

• The fuel supply and approvals needed for the proposed operating hours.
• How generation, UPS, batteries, switchgear, controls and cooling will work together through maintenance and failures.
• The complete installation schedule, operating costs, and plan for connecting to future utility service.

For the owner, the goal is to protect the business schedule while preserving the facility’s reliability objectives. A system designed for both independent and grid-connected operation may also have a useful role after the utility upgrade, subject to its design and operating permissions.⁶

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