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UTILITY WEEK | 21ST - 27TH OCTOBER 2016 | 5 "This is just the end of the beginning" Ofwat chief executive Cathryn Ross said the water sector will face "many challenges and opportunities from the competitive market". "Progress has stalled" The verdict of the Committee on Climate Change about efforts to decarbonise heating systems. See news, p11 Scottish Power has launched a photograph competition to celebrate its Whitelee windfarm being "the most Instagrammed" windfarm in the world. Whitelee is the UK's largest and most visited onshore windfarm and more than 3,000 images of it have been posted on the social media site by visitors. The photograph judged the best with the hashtag #whiteleephotocomp will earn a a Nikon Coolpix L340 digital camera for the person who took it. National Grid has published the register for the four-year ahead (T-4) capacity market auction for delivery in 2020/21. A total of 74.7GW of de-rated capacity has prequalified for the auction, including more than 2GW of new battery storage and 5.6GW of new-build reciprocating engines – a number of them small-scale diesel generators. Source: Aurora Energy Research/ National Grid Four-year ahead capacity auction De-rated capacity (GW) Winter capacity margins up National Grid has forecast a de-rated capacity margin for the coming winter of 6.6 per cent – or 3.4GW – in its latest annual Winter Outlook report. The figure is up slightly on the 6.1 per cent the company predicted for last winter. The loss of load expectation is 0.5 hours a year. National Grid has increased its projected margin since it made a preliminary forecast of 5.5 per cent – or 2.9GW – in July. The rise is the result of 430MW of capacity from Eggborough re-entering the market and a 250MW reduction in expected exports to Ireland due to an outage on the East-West Interconnector. The 6.6 per cent margin includes 3.5GW of reserve capacity (not de-rated) procured through the Supplemental Balancing Reserve (SBR). It falls to 1.1 per cent when the SBR is taken out of the equation. Scot Water sewage heat recovery Scottish Water subsidiary Scottish Water Horizons has signed up Sharc Energy Systems to roll out a £20 million pipeline of its sewage heat recovery systems across Scotland. The two companies have been collaborated informally on the project for the past two years. When deployed, the systems will generate 170GWh a year of renewable heating and cooling, reducing costs and cutting emissions. The alliance will help support the Scottish government's ambitious renewable heat and carbon reduction targets for 2020. Sharc Energy Systems is a wholly owned subsidiary of Canadian company International Wastewater Systems. ENERGY WATER £1.1m Cost of a Severn Trent scheme to help prevent sewer flooding in Attenborough, Nottingham. 11 The UK has dropped out of the Top 10 of the World Energy Council's Energy Trilemma Index, which benchmarks the sustainability of energy systems. Target 52GW New build = Total prequalified capacity Existing and refurbishing CCGT Recip. engines DSR Batteries OCGT Inter- connectors Other 53.25 9.44 5.64 2.15 2.03 1.04 0.77 0.35 74.67