Energy Supply for NWG

Northumbrian Water Limited (NWL) seeks to appoint a partner/s for energy supply for the

import and export of electricity and gas across ~1,853 operational sites and providing

compliant Meter Operator Services (MOP) including Data Collector and Data Aggregator

Services (DCDA) to ensure accurate data collection and reporting for the operational

sites.

NWL are looking to appointing a partner/s to support NWG's energy supply for current

and growing requirements for business services over the next ten years.

The contact has been split into the following Lots;

• Lot 1 - Power - Import & Export (HH/NHH/UMS)

• Lot 2 - Gas - Import & Export

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• Lot 3 - Meter Operator Services (HH)

The scope of work to be undertaken by the successful bidders is anticipated to be as

follows:

• Supply NWL with electricity and gas, offering flexible trading options like day-ahead

pricing, seasonal trades, and market-linked export contracts.

• Work in partnership with the Energy & Decarbonisation team and business stakeholders

to adhere to business requirements.

• Provide experienced resources with the capability to identify genuine business benefits

and opportunities.

• Collaborate effectively with stakeholders to deliver end-to-end energy supply services

including handling billing, credit notes, and export invoicing, new connection requests,

disconnection requests, settlement and data reporting.

• Manage NWL's energy portfolio, offering tools for reconciliation, forecasting, and

strategic planning across multiple sites.

• Provide weekly energy market updates and contributes to NWL's procurement strategy,

including supplier interviews and performance KPIs.

• Install and maintain meters, collect half-hourly data, and aggregate it for billing and

analysis. This includes export meters and strategic assets.

Below is an overview of the core components for each Lot within the tendering exercise.

LOT 1 - POWER

NWG seeks a supplier who can fulfil the following contract requirements and intends to

put in place a framework agreement for the supply and administration of 1,829 electricity

supply points including both import and export (1,314 NHH 515 HH - correct as of July

2025).

The contract has an estimated annual value of £53M/year (estimated gross of any

payments to NWL for electricity export).

All electricity contracts must be provided by a single supplier. The successful suppliers

must have appropriate supply licenses for import and export and must be able to

demonstrate their experience in providing similar services to other clients.

LOT 2 - GAS

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NWG seeks a supplier who can fulfil the following contract requirements and intends to

put in place a framework agreement for the supply and administration of both import and

export gas supply points (25 MPRNs - correct as of July 2025).

The requirement is for gas supply contracts for 25 supplies covering import and export of

gas. The contract has an estimated annual value of £4M/year (estimated gross of any

payments to NWL for gas export).

All gas contracts must be provided by a single supplier. The successful suppliers must

have appropriate supply licences for import and export and must be able to demonstrate

their experience in providing similar services to other clients.

LOT 3 - MOP & DC/DA

NWG seeks a supplier to appoint a Meter Operator (MOP) provider to provide Data

Aggregation and Data Collection (DA/DC) Services for any new or existing half-hourly

electricity supply points. The MOP agreement will cover the installation, maintenance, and

management of energy meters, ensuring accurate usage recording, proper upkeep, and

regulatory compliance. As of July 2025, NWG is currently overseeing 515 HH MPANs.

Due to the timeline of this current tender, NWG acknowledge that the Market-wide HalfHourly Settlement (MHHS) is a significant reform in the UK's electricity market, aiming to

transition all electricity meters to half-hourly settlement. As per NWG's understanding,

changes which will take place under MHSS are as follows:

• MOPs (Meter Operators) are becoming MOAs (Meter Operating Agents).

• DC/DA roles are being replaced by Smart Data Services (SDS) and Advanced Data

Services (ADS).

• HH/NHH classifications will be replaced with Smart, Advanced, or UMS.

• Contracts for Metering Services Smart (MSS) or Metering Services Advanced (MSA).