Articles on Energy efficiency

Displaying 101 - 120 of 144 articles

New homes go up at a housing estate at Cecil Hills in western Sydney. AAP/Dean Lewins

Why energy-saving homes often use more energy

Energy efficient houses are often thought to be a promising way to reduce our environmental footprint by using less energy and producing fewer greenhouse gas emissions. Yet, surprisingly, if you consider…
Rent is free, but scientists turn your lights on and off and open and close your doors remotely. University of Salford

Close doors, boil less water, turn down the heat – save £600

Britain’s housing stock is old and leaky. The vast majority fails to meet modern energy efficiency standards, is responsible for over a quarter of the nation’s greenhouse gas emissions, and is often very…
Solving energy problems requires more than just putting on a jumper. Steve Parsons/PA

Rising energy bills require brave leadership, not cuts

The nights are drawing in, leaves are changing from green to gold, and energy suppliers are announcing price hikes. Along with animals disappearing into hibernation, energy price rises have become what…
If bills are kept low, will there be a price to paid in other ways? Rui Vieira/PA

Miliband bill freeze won’t fix fuel poverty or leaky houses

First the banks lost the public’s trust, then the tax activities of some large corporations were brought under scrutiny. So perhaps taking on the “big six” UK energy companies as household fuel bills incessantly…
Electricity prices, renewable energy, climate change, uranium exports: what does the Coalition plan to do about our energy future? akeii/Flickr

Where to for energy policy under a Coalition government?

The Coalition has returned to government at a time of uncertainty and rapid change in almost every area of energy policy. With an energy policy released and a responsible minister named, what can we determine…
Bricks and mortar, yes, but how much insulation under the tiles? Rui Vieira/PA

Plugging 25 million leaky houses is no small task

The UK has some of the oldest – and leakiest – housing stock in the western world. The vast majority of it will still be standing in 2050, the year by which the government has set itself a target to cut…
Passivhaus homes at Wimbish, Essex. Mark Baigent

Making homes better for the climate, your wallet and health

In the UK, a third of all the energy used goes towards heating buildings and providing hot water, most of this, a quarter of the total, in homes. The thermal efficiency of UK homes has increased by one…
Keeping the heat in the places you want it is the most important part of any heating plan. Wunkai/Flickr

How to heat your house efficiently

Winter is coming, and all across the southern states eyes turn to energy bills and minds towards how to make them smaller. What is the most efficient way to heat your house? As with anything to do with…
Making power-hungry datacentres like these more energy efficient is vital. Schlüsselbein2007/Flickr

Your next computer can be any colour, so long as it’s green

Do you have a computer on a desk somewhere? Fans whirring, screensaver flickering, left on for days. Would you leave your washing machine running for days? Because over time, a desktop computer draws on…
Australia has so many energy sources to choose from: which way will we go? AAP Image/Lukas Coch

Energy revolution or bloody war – it’s our choice

Running a business in Australia’s energy sector is difficult. Proprietors have to contend with intense competition, rapid technological change, climate change, natural disasters…even complaints about rising…
Campaigns to switch off won’t work until they fit in with the ways we already behave. Andrew Huff

Hard habit to break: getting out of our energy wasting ways

Reducing greenhouse gas emissions requires behavioural change. But how do we get individuals into this habit or, for that matter, any habit that reduces energy consumption? Two academic disciplines concern…
We are all now used to an international standard of cooling comfort: 22 degrees celsius. bondidwhat/Flickr

Air conditioning: we need to talk about indoor climate change

For the past few weeks, billboard posters across Doha have promoted the International Climate talks with the < 2°C logo - a reference to the ambition of maintaining average global temperatures less…
Buildings in New York are given an environmental energy rating. Less than 750 buildings in Australia have been similarly rated. L C Nottaasen/Flickr

Why we should be diagnosing the environmental health of buildings

Improving the health of our building operations is one of the most effective, current ways to reduce our impact on climate change. And just as in medicine, being able to diagnose and improve health requires…
The internet of the future could consume 10% of the world’s electricity supply. rachel_titiriga

The internet is sapping the world’s energy, so let’s improve it

Despite its new economy sheen, the internet represents a surprisingly large old economy drain on energy resources. Industry and academia must work together to ensure the internet is a positive contributor…
Tony Abbott described the carbon tax as a python that would strangle the economy, but it’s more of a lolly snake. Flickr/anenomeprojectors

Why the carbon-tax ‘python’ won’t squeeze the economy

Some critics of carbon pricing have pointed out that, over time, the carbon price will increase to a much higher level and devastate the economy. Indeed, the image of a python squeezing the life out of…

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