Energy Storage and Management Units

(Core learning outcome: Supporting)
The NTVV project is exploring the concept of an Energy Storage and Management Unit (ESMU) which combines power electronics and energy storage to help manage voltage performance, thermal limitations, efficiency and emergency response on the LV network. The project team are intending to install these devices on the LV network and have agreed a revised deployment plan with Ofgem through change request (CR003) committing to a July 2015 delivery of all units as per SDRC 9.4c.

Change request 003 sets out that due to the provision of two key components, the cabinets and the interposing transformers, being provided by secondary supply chain manufacturers to the specification required by the primary supplier, Electrovaya, the deadline could not be achieved. As a result the project revised the manufacture, international shipment and installation dates of the devices and a revised delivery date of July 2015 was agreed internally and by the supplier and the revised approach was approved by Ofgem.

The manufacture reports additional delays to production and delivery as the result of further final design reviews. The potential for non-delivery against the revised schedule remains. However, at this stage the revised delivery schedule remains on track to deliver and units within the revised timeframe although the contingency for weather related delays has now been exhausted. The project has clear milestone events whereby the supplier must meet the deliverables to ensure the installation remains achievable.