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Blake Lapthorn Construction Green Breakfast with John Martin - 31 May 2012
 

Blake Lapthorn Construction Green Breakfast with John Martin - 31 May 2012

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Blake Lapthorn were delighted to host the Construction Green Breakfast with John Martin of Sovereign Vale Housing Association on 31 May 2012 in Oxford.

Blake Lapthorn were delighted to host the Construction Green Breakfast with John Martin of Sovereign Vale Housing Association on 31 May 2012 in Oxford.

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    Blake Lapthorn Construction Green Breakfast with John Martin - 31 May 2012 Blake Lapthorn Construction Green Breakfast with John Martin - 31 May 2012 Presentation Transcript

    • “Where’s the switch?”Life with renewables and Code for Sustainable HomesSovereign Vales experiencesJohn Martin MCIOBDevelopment Liaison Manager31st May
    • Sovereign Housing Association• 33,000 homes - £194m turnover• Covering 40,000 sq.km – All counties South and South West• £250m bond issue just agreed - for new homes• 20,000 boilers• Vehicles cover 5,000,000 miles a year• 12 largest Housing Association in England• Sovereign Development Consortium - £31.5m HCA grant for 1856 homes over the 4 year contract, 1100 will be provided by Sovereign Housing Association• 218 homes completed in Oxon and Bucks in 2011/12BL Green Breakfast
    • Reminder -Why code for sustainable homes? • Climate change - UK Commitment to reduce CO2 emissions by 80% by 2050 – Kyoto protocol • Make the built environment more sustainable • Introduced in 2006 operational in 2007 and revised in 2010. • A national environmental standard for new homes encouraging continuous improvement in sustainable home building. • Social housing grants tied to meeting CSH level 3 • Housing associations (and their residents) at the forefront of renewable products. • Idealistic? BL Green Breakfast
    • Perceptions & concerns• New heating products would be expensive to install• Design targets too prescriptive – skills shortage?• CO2 reduction aspirations were linked to energy efficiency statements which in turn means lower energy bills.• Visually unacceptable• Water supply and low water use w.c. performance?• Condensation worries• Is it affordable?BL Green Breakfast
    • Realisation - story so far• Completed - 326 Solar Thermal systems (3 versions), 35 MVHR (3 types), 16 house p.v., 6 communal p.v., 22 ASHP., 11 AESHP (NIBE) over 50% via section 106 sites• Co2 reduction is nothing to do with affordable warmth• Some systems threw them into fuel poverty – definition greater than 10% of income – Benefit is £65.50 p.w. average gas and electric is £24 p.w. (ordinary gas wet)• A “renewable” 3 bed home had annual Electric bill of £2000! - extreme case but not unusual.• Housing association residents are in an agenda which they didn’t write - little awareness and a lot of concern - can they afford it – do they understand it – can they control it?• 40% of SV residents are on Housing Benefit (HB)BL Green Breakfast
    • Realisation – story so far pt 2 DON’T SWITCH IT OFF – Educate, Support , Train everybody• A lot of management time and abortive visits educating residents on how to use and live with the technologies• Locks being placed on airing cupboard doors• Systems being designed by sub contractors – rushed? Skills shortage• Little design awareness/integration by developers – left as a bolt on• SHA Bristol office removed 11 AESHP units within months, – extra £4500 per unit – understand your customer.• Solar panels do fail -• Faults post occupation due to poor or incorrect commissioning• Self commissioning and design accreditation faults• NHBC struggling to understand the installed technologyBL Green Breakfast
    • Beckett CloseAylesbury Bucks7 Homes mixture of 4 bed, 3 bedand 2bedBrown field site developed bySovereign by ROK the partnercontractorSecond NIBE (and last) site.We rewrote the instruction manualConstantly dealing with heatingcomfort and electric bill complaintsROK went into liquidationSovereign undertook andindependent assessment of thedesign – wasn’t approved byNIBE(?) – design found to beflawed – radiators changed.Sovereign Surveyor spent a lot oftime with residents – result costsare significantly reduced to normalAdditional cost - £20,000 plus stafftime BL Green Breakfast - NIBE experience
    • Airing cupboard challenges – top left to right Kingspan Solar thermal, Grantsolar thermal + ASHP + underfloor , composite thermal with Valiant, ASHP ,Solar thermal with Valliant boiler
    • Mechanical Ventilation and HeatRecovery (MVHR)BL Green Breakfast - MVHR Eynsham
    • Aesthetics Solar thermal LongPV and ASHP Combe Hanborough BL Green Breakfast – PV panels + ASHP (off gas) & Solar thermal (with gas)
    • Aesthetics pt 2Solar thermal - evacuated PV tiles – communaltubes - Wendover Solar century - Wendover BL green breakfast – Evacuated tubes solar thermal and PV tiles
    • Going Forward• Education, Education, Education. – Signs are that we are getting there!........example low energy light bulbs!• Learn from past – NHBC Foundation Research in use reports• Architects/designers need more ownership - orientation solar heat gain, systems management – M and E integrated into design – Airing Cupboards too small• 2016 Zero Carbon? Fabric first best – Zero Carbon Hub reports – UK “Passive” House version? reduce interaction – keep it simple• Revised Building Regulations due 2013• More training for installers better support from Manufacturers• More in use management systems & costs- air filters, solar pumps, solar panel replacements - are costs really factored in?• Controls need specifying – simplicity is the key• Ongoing resident support – getting betterBL Green Breakfast
    • Johns tongue in cheek option• √ Meets MMI• √ Prefabricated• √ Speedy erection• √ Available now• √ Recyclable• √ Sustainable• √ Low environmental impact• √ Flood plain suitable• √ Encourages social mobilityBL Green Breakfast
    • BL Green Breakfast
    • Wind Turbine (WT)PV & Solar ThermalASHP BL Green Breakfast
    • (WT) Converts to Thrust Propeller PV & Solar ThermalASHPInflatable buoyancyaid BL Green Breakfast
    • Thanks, questions &debate…BL Green Breakfast