Fast Power vs. Traditional Interconnection: How Developers Should Think About the Trade-off

It's easy to frame fast power and permanent grid interconnection as competing options — as though a developer has to choose one or the other. In practice they aren't alternatives; they're sequential parts of the same plan. Permanent PJM interconnection remains the end state for almost every project. Fast power's job is narrower and more specific: close the gap between the date a facility needs to be energized and the date permanent interconnection capacity is actually available.

Whether that bridge is worth building comes down to a small number of concrete variables, and developers are better served running their own numbers through this framework than accepting a generic industry rule of thumb.

The first variable is the cost of delayed energization. A data center, processing facility or generation asset that isn't operating on schedule has a real carrying cost — financing costs continue, committed revenue or offtake dates slip, and in competitive markets like data center leasing, a delayed energization date can mean a lost tenant commitment altogether. That cost, weighed against the cost of bridge generation, is usually the deciding factor.

The second variable is mobilization timeline. Fast-start aero-derivative gas turbine platforms can typically be mobilized, installed and commissioned on a timeline measured in weeks to a small number of months, depending on site readiness — a materially different timeline than the multi-year process a large interconnection request or transmission upgrade often requires. That gap is the entire reason bridge power exists as a category.

The third variable is contract structure. Bridge capacity doesn't have to mean a permanent capital purchase — equipment can be evaluated on a lease, rental or eventual-purchase basis, and in new, unused, zero-hour, refurbished or quality used condition, which changes the economics substantially depending on how long the bridge period is expected to last and whether the equipment has a longer-term role at the site afterward.

The fourth variable is sizing discipline. Because fast-start platforms are modular, capacity can be staged to match a project's actual load ramp rather than over-building for a worst-case scenario — which matters when the permanent interconnection date, and therefore the exact length of the bridge period, isn't fully certain at the time equipment decisions have to be made.

None of these variables reduces to a single generic number, because they depend on a project's specific capacity requirement, location, fuel availability, timeline and budget. NYTS's Request a Proposal process is built specifically to gather those inputs — capacity, frequency, fuel, location, delivery timeline, application and budget range — so a developer's finance team can evaluate the trade-off against real figures rather than assumptions. From there, see gas turbine solutions and diesel generator packages for the two equipment families most commonly used to build that bridge.