Rowan House Ltd: Engineering and Process Safety Consultants
Rowan House Ltd, 32 Raddle Wharf, Ellesmere Port CH65 4FY, Cheshire
Tel: +44 (0) 151 355 3588 • Email:

Power Station SIL Assessments

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Rowan House Ltd have worked with most of the UK Energy Suppliers providing a range of services for their process safety requirements. These have included:

  • DSEAR Studies
  • Functional Safety including LOPA & SIL Assessment
  • HAZOP Studies
  • Legacy System Safety Studies
  • Process Reviews
  • Training Course

For our functional safety work, in line with both BS EN 61508 & BS EN 61511 we have managed functional safety for the design stages as defined in the functional safety lifecycle for a number of clients. Our work for power stations has included:

  • Carrying out risk assessments to identify any instrumented functions that may be required or relied upon to prevent injury to personnel (as part of a HAZOP).
  • Identify the requirements for risk reduction against the clients tolerable target figure.
  • Undertake a more detailed assessment of the cases identified using a LOPA.
  • Specify the required instrumented function and calculated integrity level (SIL).
  • Assist in design of the safety instrumented system and develop the Safety Requirement Specification

We have also undertaken safety studies for a number of legacy systems.



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