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Following further investigations over the Easter weekend, we have identified a faulty piece of equipment at Knocknagael grid substation near Inverness, which we now believe to be the cause of last week's power cut. Safety mechanisms activated when the fault occurred, causing the main network circuit breakers to open, protecting the grid system supplying the north and west Highlands. While detailed technical investigations continue, we have taken action to ensure this issue does not recur elsewhere on our network.
We have received over 30,000 compensation claims following the winter storms that swept across the UK. To date, our dedicated teams have verified over 90% of the claims and arranged payments to the majority of affected customers. We have received 10,000 duplicate claims and kindly request that customers do not resubmit their original claim. We apologise for the extended delay and will be in touch as soon as we can. We are aware of the customers who have not yet submitted a claim and are pro-activly engaging with them to ensure they receive their entitlement.
Scottish Hydro Electric Transmission is responsible for 5,000 km of high voltage electricity cables in the north of Scotland. As a result of increased demand from developers to connect their generation to the transmission network we are investing over £1 billion to upgrade the network.
As part of the East Coast 400kV Reinforcement project, we have built and erected an Osprey tower to allow nearby nesting Ospreys to relocate from the top of a 275kV tower.
We want to keep our customers and stakeholders updated on how we run our transmission and distribution networks. We also want you to have your say on our business plans and any significant changes in the energy industry.
Explore these pages to find out more about our plans and the feedback we've had..
This section includes documents and information ranging from charging statements to compliance and financial information.
Scottish and Southern Energy Power Distribution is committed to communication and engagement with customers and stakeholders who are affected by developments in electricity distribution and transmission.
Scottish Hydro Electric Transmission is the owner of the high voltage electricity transmission system in the north of Scotland. As the regional monopoly in this activity, we are regulated by the Office of Gas and Electricity Markets (Ofgem) through a ‘price control’. Amongst other things, this determines the amount of revenue we can earn from users of the network to cover the efficient cost of maintaining and developing the transmission system. The current price control runs from April 2013 to 31 March 2021 and was implemented under a new regulatory framework, known as the RIIO model (revenue = incentives+innovation+outputs). We had to define the service levels or outputs we expected to deliver to our customers. Ofgem determined the prices we could charge for the use of our transmission network based on delivering those service levels or outputs. If we don't meet the standards, we may have to pay penalties, but we can also secure rewards if we exceed them. Visit Ofgem's website for more information about the review.
December 2010 - Ofgem initial consultation on the strategy for the transmission price control
March 2011 - Ofgem decision on strategy
October 2011 - Ofgem initial assessment and detailed annex on our business plan
January 2012 - Ofgem RIIO-T1: decision on fast tracking, Ofgem accepted our business plan as suitable for 'fast-tracking'.
February 2012 - SSEPD January 2012 update document details the work we carried out to address issues raised by Ofgem in its initial assessment of our business plan.
October 2012 - SSEPD Summer 2012 consultation outlines our ongoing work to ensure we are able to deliver on the commitments in our business plan.
You can view the full range of documents from the review process in our archive.