These are my links for June 16th through June 20th:
- Mass-retrofitting of a low carbon zone | energy for london – “The conclusions highlight some really interesting findings relating to Hackbridge which are also very relevant to other areas of London. These include:
housing built pre-1918 on average consumes 56% more energy and emits 41% more CO2 than houses built post-2001;”
- Mayor to encourage community energy projects | energy for london – Page 30 of the ‘Early Minor Alterations’ document sets out a proposed revision to Chapter 5 of the London Plan – which addresses planning and climate change – to support community-led initiatives renewable and low carbon projects through neighbourhood planning. The exact amended text (in bold) follows below:
5.41 The Mayor’s supplementary planning guidance will set out broad guidelines to assist boroughs and, where appropriate,neighbourhoods, to define locations where stand-alone renewable energy schemes would be appropriate. The increased use of renewable heat will also significantly depend on the growth of heat networks. The Mayor and Boroughs will also encourage community-led initiatives for renewables and low carbon energy and examine how they can be supported through neighbourhood planning (see Policy 7.1).
The supplementary planning guidance referred to is on renewable energy (which is also referred to in para 5.40 of Chapter 5 – see link above) and has, as yet, not been publi”
- ACE – Breathing new life into an old bill – “Greg Barker’s “revitalisation” of HECA is being warmly welcomed. This month should see revised guidance published. New targets will need to be established locally, both for overall energy improvements and especially towards fuel poverty eradication. That happy epithet, about the “single most important item of legislation designed to help save energy”, should become pertinent all over again.”
- The global environment: Boundary conditions | The Economist – a critical look at the theory behind Mark Lynas’ book “If the planetary-boundaries scientists really have got their sums right, the greenhouse-gas situation looks hopeless. From today’s position of carbon-dioxide levels pushing 400ppm and going up about 2ppm a year, a carbon-dioxide level of 350ppm can be reached only by going to zero emissions and then spending a long time—centuries, in all likelihood—sucking CO2 out of the atmosphere and putting it back underground by various means.”
- ukDEA – UKDEA members ENER-G Switch2 launch energy pricing guide for district energy schemes – “The guide is completely free, and helps scheme operators predict the total operating costs of district energy systems, including taking into account the technology employed in the system design and maintenance required. With this information the scheme operators can set users rates more accurately, ensuring they are receiving the maximum savings whilst still paying enough to keep the scheme in profit.
The alternative to these types of calculations is to set rates using a benchmark against alternative sources of energy, such as gas and electricity suppliers. This can allow the operator to set a price that is competitive against utility providers, but can be a risky strategy.”
- Research shows ‘huge potential’ for district energy | News | Heating and Ventilation News – “Research by the UK District Energy Association (UKDEA) has identified huge potential for district energy in the UK.
In advance of the published results of the Department of Energy and Climate Change’s district heating survey, the UKDEA has undertaken analysis which demonstrates that it should be feasible to supply over 100 TWh of heat (14 per cent of the UK’s heating and hot water demands) through large scale low-carbon district heating networks, with significant untapped potential at smaller scales too.
Assuming total decarbonisation of the larger networks alone in the run-up to 2050, the greenhouse gas emissions savings should exceed over 36 MtCO2e – a 26 per cent reduction in the current greenhouse gas emissions relating to heating and hot water.
The current legislative landscape contains a number of barriers which prevent deployment of district energy.”
- The Thermal Effects of Solar Gain | Natural Frequency – Good reference article: “In many building regulations and simplified analysis methods, solar effects on buildings are characterised only by the exposed apperture area and the average solar transmittance of the glazing used. However, the true impact of solar radiation on the internal conditions within a space are often much more complex than this simple relationship would suggest. To explain the problem, this article tracks solar radiation as it enters through a window and looks at the various factors that govern its resultant effects.”