Showing posts with label energy. Show all posts
Showing posts with label energy. Show all posts

Saturday, January 18, 2014

REPOST: Cooling has key role in building energy

RAC editor Andrew Gaved gives emphasis on what the cooling industry can do to help improve building energy efficiency.


Image Source: blogs.law.columbia.edu



















The subject of energy seems to be being talked about nonstop at the moment – from attempts to rein in suppliers to the risk of the Grid reaching capacity to, of course, the rising cost of the stuff.

We have thrown our two penn’orth into the debate by way of our first Building Energy Question Time (see RAC January issue). It was a fascinating discussion which had in about equal parts good news for the industry, depressing news for the industry and challenges for us to rise to.


As is traditional, here’s the bad news first: there is a clear sense that much of the regulation surrounding energy isn’t working, for either the supply chain or for customers. At the Question Time, panellist after panellist talked about regulations that were missing the mark, whether it be Green Deal, which has expensive interest rates, deterring take-up; Part L, which has dropped the consequential improvements element so crucial to keeping heat in a building; or Energy Performance Certificates, and the woeful take-up of the air conditioning inspections – the mandatory inspections remember – which were supposed to help building owners improve energy efficiency.

Image Source: cooling4industry.co.uk















However, the good news is that the cooling industry can play a major role in improving building energy. Former Cibse president Andy Ford painted a particularly compelling picture of using ground source heat pumps to manage heating and cooling across a year, to the extent of linking buildings that have a heat need with those that have cooling. As he wryly noted, this approach ‘introduces the idea that cooling is actually good – not wicked as many green people seem to think’. I hope Ecobuild and its speakers have taken note.


The main challenge is to galvanise our industry to take on these opportunities, and to shout louder than some of the other noisy lobby groups to convince government we have some of the solutions to reducing buildings energy. We will be returning in 2014 with another Buildings Energy debate, so watch this space.


The other thing that a lot of people are talking about (still) is the fallout from the demise of WR Refrigeration and what the industry might be able to learn from it. There has been reaction from across the industry to the opinions of Kelvin Lord in last month’s issue, and we carry some of the responses, as well as a counterpoint from Thermacom’s Trevor Dann in the January issue.


Image Source: ecofriend.com













One of the overarching themes is that the retail contractors’ margins are becoming too low to be sustainable. Doing something about this is of course the big challenge – it has been suggested the only reason retailers get away with consistently driving down prices is because no one is standing up to them. But it isn’t quite as simple as that when the buying team across the desk holds the power over 30 per cent of your business. Or more.


What the industry doesn’t need is for the WR debate to increase tension between contractors and customers. Because now, perhaps more than any other time for decades, the supply chain needs to pull together to meet the demands of a reduced emissions, reduced energy future.


Hobson Air Conditioning Inc. is a full-service air conditioning and heating contractor based in Texas. Visit this website to learn more about its products and services.

Thursday, January 10, 2013

Basic concepts of energy efficiency for homes


Back in 1977, the nation was suffering from an oil crisis, which prompted President Carter to address the citizens and ask them to dial down the thermostats in their homes. The reason for this call was that by reducing the temperature in homes around the country, the nation could conserve heating fuel.

Image Source: derwoodhomes.co.uk















At present, homeowners may still follow that call if they wish to make their homes more energy efficient. Hobson Air Conditioning Inc.’s home energy analysis shows that the energy expenditure in many homes go to temperature regulation.

Image Source: proactivetechnology.com.au











The same principle applies for homes in hot and cold weather. Homeowners should try to lessen the temperature differential between the inside and outside of the house to reduce the heating or cooling costs. It may be a little uncomfortable at first, but consumers can make small adjustments in order to compensate for the warmer or cooler room temperature which would then be considered their new ‘normal.’

Meanwhile, they can also make a few small improvements around their house to improve energy use. For example, they can increase the amount of insulation between rooms to stop the heat flow from the rooms they use to outer areas such as the attic. They can also focus on using natural lighting to illuminate the rooms to reduce electricity use during the daytime.

Image Source: unconditional.co.nz















With every small adjustment made, homeowners can easily reduce the energy consumption in their home, which then translates to similar reductions on their utility bill.

Find out more about how you can make your home more energy efficient at ACGenius.com.