River wall  Community benefits  Notice of start of commissioning and notice of date of final commissioning  Phasing of construction and commissioning of Work No. 1  Combined heat and power  40 24. —(1) Work No. 1A (and, if applicable, Work No. 2(b)) and Work No. 3 must be constructed  to produce combined heat and power through the provision of steam pass–outs and the  preservation of space for the future provision of water pressurisation, heating and pumping  systems. Prior to the date of final commissioning of Work No. 1A the undertaker must submit to  (3) The steam turbine incorporating at least 30 megawatts heat off–take for district heating must  be completed at the anticipated date of final commissioning of Work No. 1A if constructed and  installed as part of Work No.1 or if applicable, Work No. 2(b).  (2) Work No. 1B must commence construction in the same phase as Work No. 1A.  23. —(1) Subject to sub–paragraph (2), no part of the authorised development may commence  until a phasing programme setting out the commencement of construction and the anticipated start  of commissioning and the anticipated date of final commissioning for each of Work Nos. 1A, 1B,  1C, 1D and (if applicable) 2(b) has been submitted to and approved by the relevant planning  authority. The phasing programme must provide for the anticipated date of final commissioning of  Work No. 1C and Work No. 1D as soon as reasonably practicable. The phasing programme must  be implemented as approved by the relevant planning authority.  (3) Within seven days of completing final commissioning of each of Work Nos. 1A and 1B, the  undertaker must provide the relevant planning authority with notice of the date upon which such  commissioning was duly completed.  (2) Where practicable, notice of the intended start of commissioning of Work No. 1B must be  given to the relevant planning authority prior to such start and in any event within seven days from  the date that commissioning is started.  22. —(1) Where practicable, notice of the intended start of commissioning of Work No. 1A must  be given to the relevant planning authority prior to such start and in any event within seven days  from the date that commissioning is started.  21. —(1) No part of the authorised development may commence until an employment and skills  plan has been submitted to and approved by the relevant planning authority.  (2) The employment and skills plan must be implemented as approved by the relevant planning  authority.  20. —(1) No part of Work No. 1 may commence until a river wall condition survey on those  parts of the river wall within the order limits has been submitted to and approved by the  Environment Agency (in consultation with the relevant planning authority).  (2) The river wall condition survey submitted pursuant to sub-paragraph (1) must, where  appropriate, identify any remedial works required to bring the tidal flood defence up to a good  standard considering a design life of 100 years.  (3) The remedial works required to bring the defence up to a good standard identified pursuant  to sub–paragraph (2) must be carried out within two years of the date that the condition survey is  approved under sub–paragraph (1).  (i) the reasons for the emergency; and  (ii) how long it expects the emergency to last. 