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In deliveryUnited KingdomServices£1,092,000Add to pipeline

Maentwrog Hydro Power Station Optimisation Services

Awarded to Gridbeyond Ltd

Nuclear Decommissioning Authority(buyer)

Published
Published 24 July 2025
Deadline
Closed 17 February 2026
See 2 live opportunitiesHow Skim finds tendersView original notice ↗

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Overview

The Nuclear Decommissioning Authority has awarded a contract worth £1,092,000 to Gridbeyond Ltd for energy generation and trading optimisation services at Maentwrog Hydroelectric Power Station, a 28MW facility owned by NDA. The services include trading available energy generation capacity in the wholesale market based on market analysis, generation capacity, water volumes, and rainfall measurements. The contract commenced in July 2026 and is structured with an initial two-year term and two optional twelve-month extensions, aimed at increasing revenue generation for the NDA's nuclear decommissioning mission.

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Key details

Country
United Kingdom
Status
In delivery
Category
Services
Estimated value
£1,092,000
Procedure
Competitive flexible procedure
Rules
Procurement Act 2023
SME suitable
Yes
Published
24 July 2025
Questions by
17 February 2026
Deadline
Closed
Classification (CPV)
Electricity, heating, solar and nuclear energyElectricityElectricity suppliesEnergy metersInstallation services of electricity control equipmentElectricity distribution and related servicesOther sources of energy supplies and distributionOperation of a power plant+7 more

Award outcome

Awarded value
£1,092,000
Award date
20 July 2026
Contract period
24 May 2026 → 24 May 2028
Contract length
2 years
Could run to
4 October 2030
Bids received
1
Winner
  • Gridbeyond Ltd

This contract ends on 24 May 2028, or 4 October 2030 if every extension is used.

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About the winner

Gridbeyond Ltd

Based in
London
Public contracts won
3
Across UK and EU notices

No other contract from Nuclear Decommissioning Authority under this supplier name in Skim's records.

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Competition and scoring

Bids received

1

1 from SMEs

Open and restricted tenders in Petroleum products, fuel, electricity and other sources of energy drew a median of 5 bids over the last 24 months; 11% received only one.

How bids were scored

Price 40% · Quality 60%

  • T1 - Trading Methodology10%
  • T2 - Ensuring Additional return on Investment15%
  • T3 - Performance & Contract Management10%
  • T4 - System & Dispatch Integration Solution10%
  • T5 - Implementation & Mobilisation5%
  • SV01 - Wellbeing & Inclusion10%
  • C1 - Set up costs5%
  • C2 - Core Service Fee20%
  • C3 - Additional Income Fees10%
  • C4 - Capacity Market Fee5%

Price and cost criteria in black, quality in blue.

Market context

Typical award in Petroleum products, fuel, electricity and other sources of energy

£651,015

Median of 1,060 awards in the last 24 months

This award is 68% above the median.

Nuclear Decommissioning Authority in the last 12 months

51

contracts awarded, worth £27,917,326 in total

See their procurement profile →

Recent awards in Petroleum products, fuel, electricity and other sources of energy

The latest contracts other buyers awarded under the same classification.

Notice history

Every published notice in this contracting process, newest first.

  1. Contract

    31 July 2026

  2. Contract

    21 July 2026

  3. Contract Notice

    13 January 2026

  4. Planning Update

    30 July 2025

  5. Planning Update

    30 July 2025

  6. Planning Update

    24 July 2025

  7. Prior Information Notice

    24 July 2025

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