Knights Brown was contracted to construct a 20MW Short Term Operating Facility (STOR) at Bristol Road, Gloucester. Our client is a global provider of power generation systems, components and services in standby power, distributed power generation, as well as auxiliary power in mobile applications to meet the needs of a diversified customer base.

The natural gas powered 20MW peak demand power facility was to provide power to the National Grid with a quick start-up time (under two minutes).

The scope of works included the excavations for a new gas main, concrete slabs for the generators, transformers and switch gear, perimeter access roads and drainage for the facility including an oil separator tank, attenuation tanks and a final connection into the Severn Trent sewer via a flow control restrictor @ 5l/s.

We were also responsible for the provision of substation requirements, inclusive of switchgear arrangements and mechanical fit out, including ducting and connection to the grid.

The original programme of works allowed for the civil engineering works to be completed ahead of the containerized Genset delivery. We were asked early on to change our sequence of works to allow for the generators to be sited before drainage, roads and fences could be erected, this gave more space and allowed the use of smaller cranes for unloading, significantly reducing costs (350t crane in lieu of 750t crane).

Knights Brown undertook the role of main contractor throughout the installation and commissioning stages of the project.