Connect Saint Helena Ltd
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Electricity Generation: Diesel Power


The power station in Ruperts Valley houses the six diesel generators.  In 2012 the power station had a mid life refit which involved the removal and replacement of all switch gear, cabling and four of the six generators.

The two remaining generators are Ruston RK215 units each able to generate 1MW.  Three new CAT 3516B units rated at 1.6MW and a CAT 3508B unit able to produce 0.8MW were installed as part of the refit along with state of the art Vacuum circuit breakers and a SCADA system to provide a degree of automation.

Although the electrical supply requirements increase year on year the work undertaken to integrate renewable energy has reduced the level of diesel generation.

As more renewable energy is installed the reliance on fossil fuels decreases.  This reduces operating costs and helps preserve the environment.


At present approximately 75% of the islands electricity is generated from burning fossil fuel (diesel).  ​Below is a graph showing the amount of electricity (kWh) generated by means of our generators since Connect's start in April 2013.
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​Maintenance
Once these generators have run for 27,000 hours (equivalent to just over 3 years), it is a requirement that they undergo a complete service which means dismantling the engines down to the engine block to assess all components and replace parts such as cylinder liners, pistons and bearings.  

The benefits of this 27,000 hour service on our Power Station generators is two-fold.  First, it ensures a continuous production of electricity for the Island and secondly, it develops our own employees knowledge and experience as the service is being carried out.  

You can read more about the 27,000 hour service overhaul that was done on Generators 1 and 3 in our Press Releases & Other News section under, Electricity
 Generation.
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Power Station Facility at Ruperts Valley
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CAT 3516B Diesel Generator Unit
Related Links:

  - Services
    - Electricity Distribution
          > Electricity Savings Tips
          > Electricity Supply T&Cs
    - Electricity Generation
          > Diesel Power
          > Wind Power
          > Solar Power
    - Infrastructure
    - Projects
    -  Press Releases and other News
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  • Home
  • About Us
    • Vision & Values
    • Team Commitment
    • Board of Directors
    • Management Team
    • Work Teams
    • Vacancies
  • Projects
    • Operations
    • Water Supply
    • Raw Water Systems
  • Finance & Business Support
    • Billing >
      • Your Bill Explained
      • Meter Reading
      • Property Access
    • Utilities Tariff
  • Services
    • Electricity Distribution >
      • Saving Tips
      • T&Cs
    • Electricity Generation >
      • Diesel Power
      • Wind Power
      • Solar Power
    • Water Treatment
    • Water Networks >
      • Saving Tips
      • T&Cs
    • Waste Water >
      • T&Cs
    • Infrastructure
  • Press Releases & other Documents
  • Announcements
  • Download Library
    • Strategic Plans
    • Members Information
    • Policies
    • Forms
    • Tariffs and other charges
    • Utility Statistics
    • Accounts
    • Utilities Regulatory Authority
    • Electricians
    • Customer Complaints Procedure
    • Lab Reports (Treated)
    • Water Quality Reports
  • Contact
    • FAQs
    • Web Links