Nebraska Public Power District Starts a $3.1 Billion 694 MW Plant as the Governor Pauses Data Center Incentives
- Capacity & Wholesale Markets News Policy & Markets
Marin Holt
- 0
- 9 minutes read
- Plant Capacity: 694 MW dual fuel
- Total Cost: $3.1 billion including transmission
- Equipment: two Siemens F-class turbines at 478 MW plus 12 Wartsila engines at 216 MW
- In Service: June 2029
- Data Center Share of Nebraska Power: 11.5%
Nebraska Public Power District broke ground on July 17 on Princeton Road Station. The utility will build a 694 MW dual-fuel plant just north of Hallam in southern Lancaster County. The project carries an estimated cost of $3.1 billion including transmission. NPPD will fund it with long-term bonds and repay them through electric rates. Burns & McDonnell holds the engineer-procure-construct contract. Construction runs about three years. NPPD targets a June 2029 in-service date. The station will become the largest gas-fired plant in the NPPD fleet.
NPPD President and CEO Tom Kent tied the project to load growth. “Utilities nationwide are experiencing unprecedented surges in electrical demand, and Nebraska is no exception,” he said at the ceremony. The utility serves about 530,000 Nebraskans. That covers 81 retail communities plus 35 municipalities and 23 public power districts and cooperatives on wholesale contracts.
Why It Matters
Ratepayers carry this one. NPPD has no merchant offtaker and no hyperscaler contract behind the bonds. Repayment comes out of electric rates. The utility argues that load growth will bring enough new revenue to offset the cost. That argument depends on the load arriving on schedule. Nobody in the industry forecasts that well right now.
A second number complicates the picture. Governor Jim Pillen signed an executive order on July 21, four days after the groundbreaking. It pauses data center access to tax incentives under the ImagiNE Nebraska Act. At the signing Pillen said data centers take 11.5% of Nebraska electricity, second highest in the country. The state now counts about 36 of them. NPPD attributes its own demand growth to agriculture and to businesses expanding in the state, not to data centers. Both claims hold. The state has just told one of those load classes to wait.
What Is Being Built
The plant pairs two Siemens Energy F-class combustion turbines with 12 Wärtsilä reciprocating engines. The turbines are rated at a combined 478 MW. The engines add 216 MW. Both technologies run on natural gas or diesel. NPPD weighed cost, risk, environmental attributes, operating flexibility and accredited capacity against its existing fleet before it picked the combination. Fast start capability drove part of the choice. Both sets respond quickly to swings in grid demand.
At full output the station serves roughly 318,000 average residential homes. NPPD will hire about 32 people to run it. The utility plans no retirements as a result of the new capacity.
Burns & McDonnell designed centralized balance-of-plant facilities for fuel oil, urea and water. EPC project manager Ryan Carlson said those facilities serve two different generation technologies at once. They also scale to support a possible future expansion of the site.
Permitting Is Not Finished
Construction started before the environmental record closed. NPPD still needs a pre-construction air permit. It must also apply for an operating permit from the Lincoln-Lancaster County Health Department within a year of service. Emissions have to meet EPA ambient air standards, verified by air dispersion modeling. NPPD will install the emissions control equipment the permit requires.
Water is the other open item. NPPD is working with the state and the local Natural Resources District on well permits. Those cover plant operations, cooling and potable use. The district issues the drilling permits. The wells then get registered with the state.
One source discrepancy is worth flagging. Engineering News-Record reported the plant at 684 MW. NPPD, the American Public Power Association and POWER all put it at 694 MW. This article uses that figure.
Critical Perspective
NPPD is asking 530,000 ratepayers to carry $3.1 billion of bonds on a load forecast it has not published. The utility argues that growth will bring enough new revenue to offset the cost. That works only if the load arrives on the schedule NPPD assumed. Every utility in the country is making a version of this bet right now, and the forecasting record on large loads over the past three years is poor.
The attribution deserves scrutiny. NPPD credits agriculture and business expansion for its demand growth, not data centers. Yet Governor Pillen put data centers at 11.5% of Nebraska electricity, second highest in the nation, and the state counts about 36 of them. A utility building 694 MW in a state where data centers already take that share of the load is exposed to that load class whether it names it or not. Four days after the groundbreaking, the state paused the incentives that attract it.
The equipment choice reads as a hedge. Two F-class turbines plus 12 reciprocating engines gives NPPD fast start and the ability to run partial output. Both sets also burn diesel, which is an admission about firm gas supply in a winter peak. NPPD has not detailed its pipeline capacity or its fuel-oil storage duration.
Two items remain open that would normally close before steel goes up. NPPD still needs its pre-construction air permit, and the well permits for cooling water are still in process with the Natural Resources District. Construction began anyway. NPPD also plans no retirements, so the fixed-cost base grows by a full 694 MW and nothing comes off the other side of the ledger.
Sources
- Nebraska Public Power District, NPPD celebrates groundbreaking for Princeton Road Station
- American Public Power Association, NPPD Power Plant Project Advances With Groundbreaking
- POWER Magazine, Nebraska Public Power District Breaks Ground on 694-MW Princeton Road Station
- Engineering News-Record, EPC Hired for $3.1B Nebraska Power Plant
- KOLN 10/11 NOW, NPPD celebrates groundbreaking for Princeton Road Station
