News analysis Zero carbon
Tackling the non-doms
However, he does perceive
Description Trajectory & Building type Mt CO2 saved Cost/tonne Net present
problems with trying to achieve target (2013, spread within over life of of non-traded benefi ts or
scenario three, as not all non-
2016, 2019) aggregate assets carbon saved (costs) 2013-29
domestic building types are able
Scenario 1: 30%, 37%, 44% 11% – 85% 120 £42 £190m
to use on-site renewables, low
Off-site rich – greater role
and zero carbon technologies. For in supporting community
example, where would ‘tall tower’
networks
offi ces put onsite renewables Scenario 2: 44%, 49%, 13% – 100% 127 £95 (£3,273m)
other than biomass boilers? Other Balancing on- and off-site 54%
building types that Davies believes
Scenario 3: 44%, 53%, 63% 22% – 100% 130 £160 (£6,973m)
would struggle are hospitals and
On-site rich – as for homes
data centres. The danger here of
setting too challenging targets
could see the entire data centre He stresses that it is also defi nition for zero carbon seemingly
industry offshored, which would important to reduce the carbon appearing to evolve together, which
reduce the UK’s power demand, The danger intensity of the national grid. ‘might just help us end up with a
but do nothing for cutting global
here of setting
As regards the consultation’s rational answer’.
emissions. assertion that non-domestic But the very fact that industry
Farebrother is also critical of too challenging buildings often have more potential is still in the dark over a full zero
the consultation’s suggestion
targets could see
for on-site renewables and could carbon defi nition frustrates
that on-site solutions could be potentially play a critical role in Farebrother: ‘It would provide
encouraged by regulation, branding the entire data community or energy networks, clarity on policy for businesses if
it misguided: ‘It’s not about market
centre industry
Farebrother is doubtful: ‘This is true, they knew what the goal actually
viability, it’s a question of technical but it ignores the corollary which is is. The defi nition is vital in one
feasibility. Design teams and offshored, which also true; those on-site renewables other way, because if it is too all-
developers should be left to make
would reduce the
often do not make economic encompassing then it won’t be met
that decision because if the scheme sense and that generally equates – at least not by 2019.’ ●
has a mandatory carbon target they
UK’s power demand,
to not making sense in terms of
will choose the most cost-effective overall carbon reductions. The
The full consultation document,
option for reaching that target.
but do nothing
so-called Merton Rule should not be
Zero carbon for new non-
Sometimes that may include on-site
for cutting global
domestic buildings, can be
perpetuated.’
viewed at www.communities.gov.
renewables but, if it doesn’t, they
emissions
Despite no full defi nition of zero
uk. The consultation closes on
shouldn’t be forced down that carbon yet being agreed, Davies 26 February 2010. See page 16 to
route.’
– Hywel Davies
is optimistic about the policy and
contribute to CIBSE’s response.

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www.cibsejournal.com January 2010 CIBSE Journal 21
CIBSEjan10 pp20-21 newsanalysis.indd 21 18/12/09 12:37:52
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