Archive | April, 2012

Understanding Energy-Efficient Windows – Fine Homebuilding Article

22 Apr

Understanding Energy-Efficient Windows – Fine Homebuilding Article.

An interesting article that will help you choose the correct windows for your home and help you understand how windows work. We all know, love and understand R-values and U-values in order to help us select our windows and other insulation products. Now it would appear to be a little more complicated than simply choosing a low U-value window. The temperature difference between the inside and outside of the property can now be used to help us see with a greater degree of accuracy how efficient our home improvements are. This can only be a good thing as we can select the best products for our homes, we can start looking at long term trends based on historic activity.

In addition to the article, this is a link that explains what Heating Degree Days are.

http://knol.google.com

http://www.degreedays.net

sit back and enjoy.

21 Apr

Another video for Channel 4 and the Grand Designs crew. This is a carbon neutral house with a very interesting design, not to my taste, but with some very interesting qualities. Why am I not surprised that 43k GBP of windows still need blinds. I do love glass and light but it does have its limitations and needs a hand at times.

Sit back and enjoy.

http://www.channel4.com/programmes/grand-designs/4od#3218850

Sustainable Energy for Sustainable Business Seminar (Chester University)

21 Apr

I attended this event with gusto as I was more than interested in learning about how businesses viewed sustainabilty.

The first talk was from Lizzie Gillet of Age of Stupid fame and was based on the 10:10 project, this was a project that simplified and made easier the reduction in emissions target. If 80% by 2050 is considered too much, too far then 10% in 2010 is far more attainable. An idea was born.

The main thrust, for me, was the idea of spreading the word and this is the key to its success. The concept in itself is very simple. On a personal level, turn off the lights, turn the thermostat down by a degree, don’t use stand by on appliances. For businesses the question was more or less the same but with some additions Tottenham Hotspurs were able to reduce their emissions by 14% by changing the bulbs in the floodlighting systems, reducing travel and some plumbing changes. Public building such as schools have benefitted from the Solar Schools project where schools raised money through micro donations to buy solar panels and were able to make money from this new free and sustainable source of energy.

The key challenge facing the project was changing the culture and attitudes, the approach for resolving this was top down, get to the most important and the rest will follow. The same idea as the Age of Stupid and the luck in recruiting Pete Postlethwaite.

I like the idea that in order to achieve the big figures, we have to focus on each of the component parts and the smaller elements.

The second presentation,Prof Roy Alexander, highlighted the work done in a village near Chester called Ashton Hayes, the first carbon neutral village in England. This project began on a cold night in 2006 and has very quickly achieved worldwide fame and is a testament to the founders of the idea and the residents of the village. Apart from the quality of the idea, the publicity was key in achieving succes. Local newspapers were involved which in turn triggered the interest of national press and ultimately National TV and international press agencies have become involved.

Going back to 2003 and the heatwave we have some very sobering statistics, 30,000 deaths, an increase in mortality in the UK of 17% and more importantly for some an economic loss of 7.5bn GBP. Predictions say that we could expect, as a reult of climate change, more summers like that of 2003 or more specifically that 2003 will become a new average summer, if we don’t address the problem.

The Ashton Hayes project embarked on various emission saving ideas from plant auditing to monitoring consumption. The project wa undertaken as a whole community with co operation coming from many stakeholder. the local authority constructed a footpath connecting the village to the local rail network which had the effect of reducing car journey, not just of youngsters walking to school but also with commuters.

A community electric car was purchased and is being sold due to lack of use, a clear example I think that people will do what they want but won’t be pushed too far, the project is also learning from mistakes.

Householders complied by changing some of their habits by using energy efficient bulbs, insulating their homes, installing pv and planting trees.

The net effect is the UK’s first carbon neutral village, an incredible result when a community works together.

Does Part L 2013 spell death for renewables? | Opinion | Building Design

16 Apr

Does Part L 2013 spell death for renewables? | Opinion | Building Design.

A focus on building fabric instead of renewables is the most cost effective approach for housing, says Mel Starrs

By far, the most exciting aspect (if there can be said to be one) surrounding the Part L 2013 consultation is the Green Deal, consequential improvements and Part L1B. However, for the new build housing sector there is still quite a bit to get to grips with, particularly for anyone in the private market who has yet to encounter FEE (fabric energy efficiency). (more…)

My personal point of view is that prevention is better than cure. The push is towards the reduction in carbon emissions and logically this should come from a reduction in usage. How do we reduce consumption? By having better designed homes. The design process needs to step back a little bit and rather than simply looking at the improving insulatin of the the building, also look at the consequences of this improvement. Do we have to compromise on design in order to satisfy needs? Or should we look at more dynamic solutions? For me it’s clear.

The designers need to make decisions regarding the aesthetic of the building and decide what is more important, maintaining traditionally looking buildings or improving the overall performance. If we can agree that the climate is changing we also need to agree that traditional designs need to change in line with the climate.

A knock on effect is the benefits that the consumer can receive from the Feed in Tariffs, very simply the better the fabric, the more energy you can sell back to the grid resulting in a reduction in your pay back period.

Get back to basics, a well designed building will reduce consumption which has to be an all round win.

Energy firms to ‘guarantee best deal’ on tariffs

11 Apr

Energy firms to ‘guarantee best deal’ on tariffs

Deputy PM Nick Clegg says more needs to be done to “keep energy companies on their toes”

Energy companies will be required to let customers know what their best deal is, in a move which ministers say could save households up to £100 a year. (more…)

UK Government changes to Feed-in Tariffs – new and proposed

10 Apr

UK Government changes to Feed-in Tariffs – new and proposed

After a period of uncertainty, the reduced FIT for solar PV systems came into effect on the 3rd March (and not the 12th December 2011 as the UK Government had originally intended).  The UK Government is now proposing that FITs for solar PV should be reduced again from the 1st July 2012 and that the rates for other renewable energy technologies (apart from micro-CHP) should be reduced (or stay the same) with effect from 1st October 2012.  Further information about these proposed changes is given below.

(more…)