New Interconnector and energy cost

Summary

The request sought the budgeted cost and capacity of a new interconnector and the per MWh generation costs for specific Isle of Man power sites. The authority disclosed the interconnector's estimated cost and capacity range, and provided generation costs for CCGT, Energy from Waste, and Diesel, but could not separate costs for individual Diesel stations or provide Hydro data.

Key Facts

• The new interconnector's design capacity is estimated between 70MW and 100MW.
• Total project costs for the interconnector are estimated between £140 million and £200 million.
• Manx Utilities does not hold separate cost data for the Diesel Power Stations in Douglas and Peel.
• No cost price data was provided for the Hydro, Sulby site for the 2023-24 period.
• The response cites Section 20 of the Act regarding information already reasonably accessible.

Data Disclosed

• 70MW
• 100MW
• £140 million
• £200 million
• 93.04
• 67.61
• 297.15
• 2023-24
• 2024-09-10
• 2024-09-26
• 3 October 2024

Exemptions Cited

• Section 20 of the Act (Information already reasonably accessible)

Original Request

1. What is the budgeted cost for the new planned interconnector and what is its planned capacity in MWh? 2. What is the cost price for the energy produced on the Isle of Man, per MWh for each of the following production sites: CCGT Power Station Douglas Energy From Waste, Braddan Hydro, Sulby Diesel Power Station, Douglas Diesel Power Station, Peel

Data Tables (1)

Full Response Text

Manx Utilities PO Box 177, Douglas Isle of Man, IM99 1PS

e: enquiries@manxutilities.im t: 01624 687687 www.manxutilities.im

Our ref: 4114917 3 October 2024

Dear ###

We write further to your request, received 10 September 2024, which states:

"1. What is the budgeted cost for the new planned interconnector and what is its planned capacity in MWh?

1. What is the cost price for the energy produced on the Isle of Man, per MWh for each of the following production sites:
   CCGT Power Station Douglas
   Energy From Waste, Braddan
   Hydro, Sulby
   Diesel Power Station, Douglas
   Diesel Power Station, Peel"

2. While our aim is to provide information whenever possible, under section 20 of the Act, we are not required to provide information in response to a request if it is already reasonably accessible to you, whether free of charge or on payment of a fee. Details on the interconnectors design capacity along with further information, can be found in the Future Generation Delivery Strategy 2022-30, on the Manx Utilities. However, to advise and assist the second Interconnector design capacity will be between 70MW to 100MW.

Total Project Costs estimates to date, range from £140 million to £200 million.

1. While our aim is to provide information whenever possible, in this instance Manx Utilities does not hold or cannot, after taking reasonable steps provide some of the information in the format that you have requested, specifically for the Diesel sites, as we do not separate the diesel generation at either sites. However, to advise and assist, the table below outlines the cost price of energy produced on the Isle of Man in 2023-24.

Please quote the reference number 4114917 in any future communications. 2023-24 Generation Source Cost price of Generation/MWh £ CCGT 93.04 Energy from Waste 67.61 Hydro -
Diesel 297.15

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