Four CMZ (Constraint Managed Zone) Services — Southern England

Concepts

• cmz
• reading
• electricity distribution
• scmz
• constrained managed zones
• active network management
• southern england
• use of flexible services
• constraint managed zone
• der flexibility services

Location

Reading

Description

A CMZ is a geographic region served by an existing network where requirements related to security of supply are met through the use of flexible services, such as demand side response, energy storage, energy efficiency and stand-by generation. The contract is for the provision of a CMZ service. Flexibility on our networks is achieved through initiatives such as Constrained Managed Zones (CMZ), the use of Active Network Management (ANM) systems and an ability to apply innovation within ‘Business as Usual’ scenarios, such as our market leading flexible connections suite. A Constraint Managed Zone is an area of our existing electrical network that is or could potentially experience one of the following scenarios: • forecast to exceed its firm capacity, where network requirements related to peak electrical demand are met using demand reducing or demand shifting techniques, CMZ techniques do not seek to increase capacity on the network, but will reduce or time-shift demand to avoid capacity constraints; • will experience planned maintenance works, where DER flexibility services could be employed to maintain network operation or reduce the risk of outage; • could experience outages due to a combination of maintenance works and/or circuit faults, where DER flexibility services could be employed to avoid or minimise outages; • in the event of outages, DER flexibility services could be employed to aid in the restoration of normal supply by reducing loading or providing additional power injection; or • in the event of prolonged outage, DER flexibility services could be employed to restore and maintain supply as significant or long duration repairs are undertaken to the distribution network. Social Constrained Managed Zone (SCMZ) is a project engaging with members of the community who may not previously have been able to engage with the CMZ areas and the procurement activities associated with them. The SCMZ contracts will procure services in the same manner as the CMZ and will therefore be interchangeable in the rest of the document. The only difference is the method of engagement and level of support available for smaller enterprises pursuing the SCMZ route, as a means of levelling the playing field for all participants. Additional support may be in the form of time or funding to support the procurement activities. SSEN do not dictate how CMZ services should be provided and anticipate solutions ranging from embedded generation, energy storage, energy efficiency and demand-side management/response. It is for this reason that the exact service that a provider is contracted to provide will be detailed in individual contracts. For illustration purposes, it is expected that the contracts will define an agreed method and lead times for the following aspects of the service: • the expected date that a service can begin providing; • communicating the availability and non-availability of the service; • communicating the requirement of the service; • communicating the service windows; • confirming the delivery of the service (either communication or monitoring); • confirming the financial arrangements and payments; • non-delivery agreements; • contract termination scenarios. It is expected that the minimum service provision for a contract will be 50 kW, but SSEN welcome applications from aggregated projects and loads, either through aggregators or other partnerships.

Lot Division

Award Detail

CPV Codes

• 65310000 - Electricity distribution
• 09310000 - Electricity
• 65320000 - Operation of electrical installations
• 31682000 - Electricity supplies

Indicators

• Award on basis of price and quality.