At A Glance:
- Location : Tomatin, Inverness-shire
- Client: Scottish & Southern Electricity Networks (SSEN)
- Contractor: AMEY JV
Products Supplied:
All products were supplied with tank shell specifications to suit the high ground water conditions created by the sites proximity to the sea.
- Models supplied: P015/2CSC/NG Approved
- National Grid design including:
- Unique to SPEL 2 Chamber design
- Sampling point at the outlet (can be seen in pictures)
- SPEL 3L coalescer guiderail system (can be seen in pictures) ‘Special’ Automatic Closure Device (ACD)
- HEAVY tank shell utilised due to burial depths and ground water level
- System comprised: SPEL RSDC pre-tank debris chamber and SPEL RainSave underground storage tank RS300/4000 and associated pumps and controls
- SPEL 300 Series (1.8m diameter) with 4000 litre capacity storage tank utilised.
- Calmed inlet pipework provided to ensure settled silt is not disrupted.
- SPEL RainSave RS5D Pumping and Treatment System was provided including:
- Pumps pumping at 20 Litres per minute and 3 bar operating pressure
25 Litre pressure vessel to ensure consistent pressure - 2 stage particulate filter system
- Ultraviolet disinfection unit with lamp life timer and failure alarm
- Control panel with pump failure and filter blockage alarms
- Float Switches for pump activation/high and low level alarm
Tomatin Substation is located in the beautiful mountain and forest areas south of Inverness. This substation is a Scottish & Southern Electricity Networks (SSEN) Substation that will connect renewable energy that is often generated by wind turbines in the north of Scotland and the islands off the north of Scotland and transfer it to the areas of the UK that need the energy, usually the Central Belt of Scotland and into Northern England and the Midlands.
Not only do SPEL provide our National Grid Approved full retention separator for National Grid sites, but also other substation governed by similar bodies such as in this case SSEN, who often follow a very similar specification. The market leading design of the National Grid Approved full retention separator gives other similar companies complete confidence in the product.
SPEL collaborated very closely with National Grid, designing a full retention separator that the National Grid were able to approve for use on their large network. The National Grid approved design includes market leading features such as specially machined, fully stainless steel Automatic Closure Device plates and seating plate, the SPEL 3L guiderail system, the unique to SPEL 2 Chamber design and a sampling point at the outlet.
A small SPEL RainSave rainwater harvesting system was also installed to be used for non-drinking water uses such as toilet flushing and vehicle or similar washdown. Due to the remote location of the site, access to mains water is very limited and therefore using rainwater wherever possible is a huge advantage for the substation, reducing expensive costs of laying a new mains water line from a far away location.