{"id":26876,"date":"2025-12-19T07:14:42","date_gmt":"2025-12-19T11:14:42","guid":{"rendered":"https:\/\/red94.net\/news\/national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-power-to-340k-homes-in-stunning-underground-project\/"},"modified":"2025-12-19T07:15:12","modified_gmt":"2025-12-19T11:15:12","slug":"56190-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po","status":"publish","type":"post","link":"https:\/\/red94.net\/news\/56190-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po\/","title":{"rendered":"National Grid powers ahead with third London circuit energised bringing clean power to 340K homes in stunning underground project"},"content":{"rendered":"<p style='font-size:1.1em;font-weight:500;line-height:1.6;margin-bottom:20px'><b>National Grid<\/b> has energised the third circuit of its landmark <b>London Power Tunnels 2 project<\/b>, bringing <b>clean electricity to over 340,000 homes<\/b> in South London. The newly activated transmission circuit runs <b>18 kilometers<\/b> deep underground, marking a critical step in securing London&#8217;s energy infrastructure for decades to come.<\/p>\n<div style='background:#f9f9f9;padding:20px;border-left:4px solid #e74c3c;margin:25px 0'>\n<h3 style='margin-top:0'>\ud83d\udd25 Quick Facts<\/h3>\n<ul style='margin:10px 0;padding-left:20px'>\n<li><b>December 16, 2025<\/b> energisation milestone brings <b>340,000 properties<\/b> online with reliable power supply<\/li>\n<li>Investment of <b>\u00a31 billion<\/b> total project cost supporting UK&#8217;s transition to clean energy<\/li>\n<li><b>32.5km of tunnels<\/b> across seven South London boroughs contain <b>200km of high voltage cable<\/b><\/li>\n<li>Third circuit partnership involves <b>HOCHTIEF-MURPHY, Taihan, Balfour Beatty, and Linxon<\/b><\/li>\n<\/ul>\n<\/div>\n<h2>National Grid Activates Third London Power Tunnels Circuit<\/h2>\n<p>The newly energised transmission circuit connects <b>New Cross substation in Southwark<\/b> with <b>Hurst substation in Bexley<\/b>, running <b>18 kilometres<\/b> beneath South London through tunnels reaching depths of <b>50 metres<\/b>. This represents <b>one of two double-circuit high voltage links<\/b> planned for the wider project, supplying power onwards to <b>UK Power Networks&#8217; distribution network<\/b>.<\/p>\n<p>The circuit replaces one of two buried cables that have served the capital reliably since the <b>1960s<\/b>. According to <b>Joe Senior, National Grid&#8217;s project director<\/b>, this energisation marks <b>another step in reinforcing London&#8217;s electricity network<\/b> and ensuring the city maintains <b>safe and reliable power into the future<\/b>.<\/p>\n<h2>The London Power Tunnels 2 Project Specifications<\/h2>\n<table style='width:100%;border-collapse:collapse;margin:20px 0'>\n<tr style='background:#f4f4f4'>\n<td style='padding:12px;border:1px solid #ddd;font-weight:bold'>Project Metric<\/td>\n<td style='padding:12px;border:1px solid #ddd;font-weight:bold'>Details<\/td>\n<\/tr>\n<tr>\n<td style='padding:12px;border:1px solid #ddd'>Total Budget<\/td>\n<td style='padding:12px;border:1px solid #ddd'>\u00a31 billion investment<\/td>\n<\/tr>\n<tr style='background:#f9f9f9'>\n<td style='padding:12px;border:1px solid #ddd'>Tunnel Network<\/td>\n<td style='padding:12px;border:1px solid #ddd'>32.5km across 7 London boroughs<\/td>\n<\/tr>\n<tr>\n<td style='padding:12px;border:1px solid #ddd'>Cable Installation<\/td>\n<td style='padding:12px;border:1px solid #ddd'>200km of high voltage cable (London to Cardiff equivalent)<\/td>\n<\/tr>\n<tr style='background:#f9f9f9'>\n<td style='padding:12px;border:1px solid #ddd'>Voltage Specification<\/td>\n<td style='padding:12px;border:1px solid #ddd'>275kV high voltage transmission<\/td>\n<\/tr>\n<tr>\n<td style='padding:12px;border:1px solid #ddd'>Average Tunnel Depth<\/td>\n<td style='padding:12px;border:1px solid #ddd'>30 metres underground<\/td>\n<\/tr>\n<tr style='background:#f9f9f9'>\n<td style='padding:12px;border:1px solid #ddd'>Project Timeline<\/td>\n<td style='padding:12px;border:1px solid #ddd'>Started 2019, spans multiple phases<\/td>\n<\/tr>\n<\/table>\n<h2>Three Milestone Energisations Completed in Record Timeline<\/h2>\n<p>The <b>London Power Tunnels 2<\/b> project has achieved three major energisation milestones in rapid succession. The first circuit between <b>Hurst and Crayford<\/b> was energised in <b>August 2024<\/b>, followed by the second Hurst-Crayford circuit in <b>March 2025<\/b>, and now the <b>New Cross-Hurst connection in December 2025<\/b>.<\/p>\n<p>These successive milestones represent <b>over 5 million working hours<\/b> from <b>more than 3,000 people<\/b> collective effort since the project&#8217;s inception in <b>2019<\/b>. The <b>HOCHTIEF-MURPHY Joint Venture<\/b> partnership with <b>Taihan, Balfour Beatty, and Linxon<\/b> coordinated this complex underground infrastructure delivery across <b>seven South London boroughs<\/b> including Wimbledon through to Hurst.<\/p>\n<h2>Community Benefits and STEM Investment Through London Power Tunnels<\/h2>\n<p><b>National Grid<\/b> embedded significant community engagement throughout the project, reaching <b>147,000 students<\/b> through dedicated schools programmes tackling social mobility and closing STEM skills gaps. The company invested <b>\u00a3525,000<\/b> in local grant funding supporting organizations ranging from <b>Lambeth food growing charities<\/b> to <b>Bexley Cricket Club&#8217;s solar panel initiative<\/b>.<\/p>\n<p>Underground construction crossed beneath critical London infrastructure including <b>Northern Line, Victoria Line, and DLR routes<\/b>, requiring precision engineering and coordination. The <b>Deputy Mayor of London for Energy and Environment, Mete Coban<\/b>, emphasized this approach ensures <b>South London homes, schools, and local communities<\/b> receive reliable power for the future while maintaining London&#8217;s status as a green energy leader.<\/p>\n<h2>What This New Circuit Means for London&#8217;s Energy Future?<\/h2>\n<p><b>National Grid&#8217;s expansion of London&#8217;s transmission network<\/b> addresses the capital&#8217;s exploding electricity demand driven by <b>electric vehicle adoption, heat pump installations, and renewable energy integration<\/b>. The new <b>18-kilometre circuit serving 340,000 properties<\/b> provides redundancy\u2014if older cables fail, this circuit supplies power while replacements occur, eliminating widespread blackout risk.<\/p>\n<p>With <b>second New Cross-Hurst circuit coming online in early 2026<\/b>, <b>London Power Tunnels 2<\/b> provides infrastructure foundation for <b>Britain&#8217;s Clean Power Plan targeting 126 GW clean generation connected by 2030<\/b>. <b>National Grid&#8217;s broader \u00a351 billion investment in green infrastructure<\/b> through <b>RIIO-T3 regulation period to March 2029<\/b> positions the UK&#8217;s largest city to become a <b>zero-carbon electricity hub<\/b> while supporting millions of homes transitioning away from fossil fuels.<\/p>\n<h3>Sources<\/h3>\n<ul>\n<li><b>National Grid<\/b> &#8211; Official press release on London Power Tunnels 2 third circuit energisation December 2025<\/li>\n<li><b>Utility Week<\/b> &#8211; Coverage of London Power Tunnels infrastructure milestones and South London coverage<\/li>\n<li><b>New Civil Engineer<\/b> &#8211; Technical analysis of LPT2 project specifications and delivery timeline<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":23,"featured_media":26875,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"schema_org_data":"{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Person\",\"name\":\"Joe Senior\"},{\"@type\":\"Person\",\"name\":\"Mete Coban\"},{\"@type\":\"Place\",\"name\":\"London\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"South London\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"New Cross\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"Southwark\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"Hurst\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"Bexley\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"Wimbledon\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"Crayford\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"Cardiff\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"Lambeth\",\"description\":\"city\"},{\"@type\":\"Place\",\"name\":\"UK\",\"description\":\"country\"},{\"@type\":\"Place\",\"name\":\"Britain\",\"description\":\"country\"}]}","_extracted_celebrities":null,"_extracted_movies":"","_extracted_places":null,"_extracted_videos":"","_last_enrichment_date":"2025-12-19 07:15:39","footnotes":""},"categories":[391],"tags":[],"class_list":["post-26876","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-business-finance","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>National Grid powers ahead with third London circuit energised bringing clean power to 340K homes in stunning underground project<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/red94.net\/news\/56190-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"National Grid powers ahead with third London circuit energised bringing clean power to 340K homes in stunning underground project\" \/>\n<meta property=\"og:description\" content=\"&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/red94.net\/news\/56190-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po\/\" \/>\n<meta property=\"og:site_name\" content=\"Red94\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-19T11:14:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-19T11:15:12+00:00\" \/>\n<meta name=\"author\" content=\"Patrick Graham\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Patrick Graham\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/red94.net\/news\/56190-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/red94.net\/news\/56190-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po\/\"},\"author\":{\"name\":\"Patrick Graham\",\"@id\":\"https:\/\/red94.net\/news\/#\/schema\/person\/a87cd0001445db88250833ec7b7ce9a9\"},\"headline\":\"National Grid powers ahead with third London circuit energised bringing clean power to 340K homes in stunning underground project\",\"datePublished\":\"2025-12-19T11:14:42+00:00\",\"dateModified\":\"2025-12-19T11:15:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/red94.net\/news\/56190-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po\/\"},\"wordCount\":643,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/red94.net\/news\/#organization\"},\"image\":{\"@id\":\"https:\/\/red94.net\/news\/56190-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/red94.net\/news\/wp-content\/uploads\/2025\/12\/57746-national-grid-powers-ahead-with-third-london-circuit-energised-bringing-clean-po.jpg.png\",\"articleSection\":[\"Business &amp; 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