Plant Detail

Aunfoss Hydropower Plant

Aunfoss is a hydropower facility in Grong, Trøndelag, operating since 1959 within the Namsen watershed and connected to Norway's NO4 price zone.

Aunfoss at a Glance

Aunfoss is a Kraftverk—a run-of-river or storage hydropower facility—located in Grong municipality within Trøndelag county, Norway. The plant has been operational since 1959 and forms part of the Namsen watershed, one of Norway's significant hydroelectric systems. As a grid-connected facility, Aunfoss feeds electricity into the NO4 price zone, serving the broader Nordic power market.

Ownership and Operator

Aunfoss is operated under concession by NTE ENERGI AS, a major regional energy company in Trøndelag. The facility holds a granted-pending concession status with Norway's energy regulator (NVE), meaning the operational license is in place but subject to ongoing regulatory oversight. Understanding the operator's portfolio and regional strategy is essential for investors evaluating long-term operational stability and maintenance practices.

Hydrological Context

The plant draws water from the Namsen watershed, a critical drainage basin that supplies multiple hydropower installations across central Norway. This hydrological integration means Aunfoss's output is influenced by regional precipitation patterns, snowmelt timing, and upstream reservoir management. The Namsen system's water availability directly shapes seasonal and annual energy generation profiles.

Regional and Grid Infrastructure

Location: Grong, Trøndelag Price Zone: NO4 Nearest Statnett Transformer Station: Approximately 0.06 km away (132 kV)

The immediate proximity to high-voltage grid infrastructure is a significant operational advantage, minimizing transmission losses and ensuring reliable grid connection. The NO4 price zone encompasses central Norway and reflects regional supply-demand dynamics in the Nordic electricity market.

Data Center Suitability Assessment

HydroSec rates Aunfoss with a Grade A for data center cooling applications, based on hydrological, thermal, and infrastructure criteria. This grade indicates strong potential for direct-use cooling or waste-heat recovery in computing facilities, subject to detailed technical and environmental assessments post-login.

The Grade A designation reflects favorable conditions for colocation or hybrid power-plus-cooling arrangements, though specific capacity estimates and sub-scores are available only to registered users.

What You'll Access After Login

HydroSec's detailed plant profile—visible only to authenticated users—includes:

  • Installed capacity and annual production estimates (MW and GWh)
  • Gross head and water flow data (meters and cubic meters per second)
  • Detailed hydrological time series (monthly and seasonal patterns)
  • Sub-scores for data center suitability (thermal, grid, and infrastructure dimensions)
  • Site infrastructure maps and proximity analysis
  • Concession document summaries and regulatory status updates

These metrics are essential for due diligence, financial modeling, and operational planning. Access requires registration and is tailored to your user role and investment mandate.

Risks and Limitations

Regulatory Risk: Aunfoss operates under a granted-pending concession. While this indicates active regulatory approval, any future concession review or modification could affect operational terms or profitability.

Hydrological Variability: Output depends on precipitation and snowmelt in the Namsen watershed. Drought periods or climate-driven changes in runoff patterns may reduce generation below historical averages.

Market Risk: Electricity prices in the NO4 zone fluctuate with Nordic supply-demand conditions, fuel costs, and transmission constraints. Revenue is not guaranteed and varies with market conditions.

Data Limitations: This public profile presents only summary information. Detailed technical specifications, financial performance, and infrastructure assessments require authenticated access and should be independently verified before investment decisions.

No Warranty: The information provided is for informational purposes only and does not constitute investment advice, legal counsel, or a guarantee of returns. Investors must conduct independent due diligence and consult qualified advisors before committing capital.

Frequently asked questions

When did Aunfoss begin operations?

Aunfoss has been operational since June 4, 1959, making it a mature facility with over six decades of operational history.

Who owns and operates Aunfoss?

Aunfoss is operated under concession by NTE ENERGI AS, a regional energy company based in Trøndelag.

Which watershed does Aunfoss draw water from?

Aunfoss is part of the Namsen watershed system, a major hydroelectric drainage basin in central Norway.

What is Aunfoss's electricity price zone?

Aunfoss is grid-connected in the NO4 price zone, which covers central Norway and reflects regional Nordic market pricing.

What does the Grade A data center suitability rating mean?

A Grade A rating indicates strong potential for data center cooling applications, based on hydrological, thermal, and infrastructure factors. Specific capacity details are available to registered users.

How close is Aunfoss to the nearest power grid connection?

Aunfoss is approximately 0.06 km from the nearest Statnett transformer station operating at 132 kV, providing excellent grid connectivity.

What information becomes available after I log in?

Authenticated users gain access to installed capacity, annual production, hydrological time series, detailed suitability sub-scores, infrastructure maps, and concession summaries.

What is the concession status of Aunfoss?

Aunfoss holds a granted-pending concession status with Norway's energy regulator (NVE), meaning the operational license is in place and subject to ongoing regulatory oversight.

Sources

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