A global water and natural resources firm turned to Aggreko when they faced commissioning delays of their new energy from waste plant, due to a fault with the mains grid connection.
The customer wanted to commission their new site as soon as possible in order to earn revenue from power export once connection to the grid was re-established.
The company also wanted to meet the tight accreditation deadlines for Renewables Obligation Certificate (ROC) and lock into the government incentive before closure of the scheme.
Aggreko used a high voltage power and loadbank package to simulate a grid connection supply. This enabled the plant’s 10 MW steam turbine to be tested and commissioned.
Aggreko supplied and installed 3 x 6.3 mVA 11 KV transformers, 3 x 5000 KW loadbanks, 2 x 1250 kVA generators, a 20,000 litre fuel tank, and a 320 kVA auxiliary power supply and fuel tank.
For safety, as the turbine did not have a star point earthing system, a separate earthing system was set-up on a temporary package.
A tight window of one week for design, installation and setup meant Aggreko's specialist high voltage team had to deliver the solution timely and with accuracy. Double-stacked transformers and loadbanks were installed in a confined area so as not to impede access into the site.
Double-stacked transformers and loadbanks were installed in a confined area so as not to impede access into the site.
Result for the customer
By using a temporary high voltage power solution to simulate grid connection, the customer was able to overcome commissioning delays and accelerate the export of power to the main electricity grid, thus meeting the ROC deadline.
Why was Aggreko chosen?
Having undergone technical discussions with the customer and turbine manufacturer, Aggreko’s high voltage specialist team presented a bespoke solution that could quickly allow turbine commissioning to take place.