ROUND TABLE REVIEW: WATER EFFICIENCY IN NEW BUILD HOUSING 51
should be looking at water performance, in order to give water the parity with energy that’s required.” You know, wastewater heat recovery should just be a given now, and it does come down to cost. But what’s the cost if we don’t make these interventions?
The round table’s chair James Parker asked: “Does there need to be the aspirational side for customers as well as stressing the fi nancial benefi ts eynolds countered: “Water scarcity is terribly badly understood, because it is a looming threat.” Tony Gordon of Showersave discussed the Home Energy Model, and the likelihood of the cheaper Option 2 for designs being adopted, as well as the assumptions around usage which were challenged by other delegates. “We don’t know for sure when the results will come out from consultation, but anecdotally, I haven’t heard of anyone promoting the cheaper option because it’s just not sustainable, moving forward, and it won’t allow us to hit the carbon targets that are required.” Gordon added: “There are huge discrepancies, as you would imagine, in terms of the Home Energy Model as it currently stands, and there are some challenges already that we have identifi ed in terms of the kind of beta modelling that’s out there that needs addressing, and that’s going to take time to put that right. It’s really interesting just listening to the consensus around the table, on the need for a joint government on regulations; they are the baseline everyone wants to achieve.” anielle from arratt omes confi rmed that even in the latest version of SAP, “showering assumptions are incorrect, so we’re heavily penalised on the actual result. If we add an extra shower in.” Vistry’s Jack Brayshaw agreed: ”So you’re encouraging your customers to use a bath rather than a shower.”
For the extended report on this round table, visit
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“INSTEAD OF WHACKING ON A LOAD MORE PV, MAYBE DEVELOPERS MIGHT CONSIDER LOOKING AT RAINWATER HARVESTING”
NAOMI SADLER, SEES
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Jack Brayshaw, Head of Technical Innovation, Vistry Group
INDUSTRY RECOMMENDATIONS
Our attendees each provided a recommendation for the construction industry to adopt, in order to drive forward improvements in specifi cation of water and energy saving appliances for new homes.
Tom Reynolds, BMA Proceed with mandatory unifi ed water labelling of products, but don’t reinvent the wheel, use what’s already there.
Jeff House, Baxi Look at how we regulate water use the same way as we do energy, and whether that forms part of a home energy rating of some kind.
John Slaughter, Future Homes Hub Committing to ongoing collaboration is really important; developers, supply chain, and the skills side working together to develop practical solutions. This needs to then be fed to Government so it makes decisions on a sensible basis.
Andrew Tucker, Thames Water From the majority of developers we work with, the message is ‘please keep it simple.’ Ditch the per person per day in any metric or requirement, as we now know it’s not fi t for purpose. Use the fi ttings approach, link it to the label, fi nd options for getting reuse into the equation.
Tony Gordon, Showersave Waste water heat recovery should be considered as a mandatory energy saving measure in the same way as insulation and air tightness!
Nathan Richardson, Waterwise Get involved in the forthcoming national campaign on saving water, look at Home Information Packs, and stop spec’ing toilets with confusing dual fl ush buttons!
Dan Lintell, Triton Showers Focus on the positives, and the art of the possible, and make it personal and relatable. That’s what will drive change.
Kevin Wellman, CIPHE Need to mandate training, whether CPD or education, and a fair and equitable licence scheme so it’s a level playing fi eld for everyone.
Naomi Sadler, SEES I’d like a way to bring water into everyone’s minds, and which provides more fl exibility in how we meet carbon emissions, because getting every litre of water to your door has a carbon impact.
Nigel Griffi ths, sustainability expert Rainwater harvesting is a no-brainer, and we do need to look again at whole-house certifi cation systems.
Simon Gibbins, Hansgrohe International We need a mandatory water label and to make it compulsory at point of sale.
Richard Lupo, SHIFT Environment Post-construction checks on water fi ttings need to be carried out – there is clearly no mechanism in place to do this. And a nationwide campaign about water effi ciency is needed – led by Government.
Danielle Michalska-Morris, Barratt Homes Educate the consumer – even if we have the certifi cates and labels, if the consumer doesn’t know what to do with it, we will fail.
Jack Brayshaw, Vistry Group Regulations should become more stringent and we need to innovate to meet them, and make sure we’re not hitting our customer experience; regulations will only get us so far because consumer behaviour is crucial.
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