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Final ASX Release 24 February 2021 NEXTDC FY21 Half - Year Result & Upgraded Full Year Guidance NEXTDC Limited ( ASX : NXT ) ( " NEXTDC " or " the Company " ) today announced its financial result for the half - year ended 31 December 2020 ( " 1H21 " ) as well as provided an upgrade to its FY21 guidance . 1H21 financial highlights › Data centre services revenue grew $ 26.2 million ( 27 % ) to $ 121.6 million ( 1H20 : $ 95.4 million ) > Underlying EBITDA 1,2 rose $ 14.9 million ( 29 % ) to $ 65.7 million ( 1H20 : $ 50.9 million ) › Operating cash flow increased $ 44.0 million ( 219 % ) to $ 64.1 million ( 1H20 : $ 20.1 million ) > Liquidity ( cash and undrawn senior debt facilities ) of $ 1.8 billion at 31 December 2020 NEXTDC Chief Executive Officer and Managing Director , Craig Scroggie , commented on the 1H21 results : " We are pleased to deliver another record result in 1H21 , against a more difficult economic backdrop due to the COVID - 19 global pandemic . Despite lockdowns and travel restrictions the Company delivered its largest historical contracted build capacity for customers in 1H21 . Whilst COVID - 19 has presented headwinds for many globally , it continues to be a positive catalyst for digital services and technology providers supported by our data centre platform . " Business performance For the 12 months to 31 December 2020 : › Contracted utilisation grew 17.7MW ( 33 % ) to 71.0MW ( 31 December 2019 : 53.3MW ) > Number of customers increased by 201 ( 16 % ) to 1,465 ( 31 December 2019 : 1,264 ) > Interconnections³ increased by 1,899 ( 16 % ) to 13,911 ( 31 December 2019 : 12,012 ) , representing 7.6 % of recurring revenue ( 1H20 : 8.2 % of recurring revenue ) Development activity For the 6 months to 31 December 2020 : › S2 Sydney added 4MW of capacity , taking total installed capacity to 26MW › M2 Melbourne added 6MW of capacity , taking total installed capacity to 16MW › S3 Sydney development continues with building construction works commencing in 1H21 , on track for practical completion of Stage 1 in 2H22 > M3 design and development approval formally submitted to council and received endorsement 1 EBITDA is a non - statutory financial metric representing earnings before interest , tax , depreciation and amortisation . Non - statutory financial metrics have been extracted from the audited accounts 2 Underlying EBITDA excludes costs related to review works into potential data centre investments in Asia as well as gains on re - assessment of leases under AASB 16 3 Comprises both physical and elastic cross connections Page 1 of 3