Articles on Energy efficiency

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Britain’s Energy Performance Certificate - could do better. Grant Wilson/National Grid

Energy efficient homes could help Treasury balance the books

We’ve just been through an unusually mild winter for the UK. Despite the excessive rain and storms, the warmer temperatures meant we’ve needed less energy to heat our homes. This has reduced household…
Elegant and efficient. andrewmorrell

Jellyfish are the most energy efficient swimmers, new metric confirms

Even though a blue whale is much heavier than a tuna, the mammal consumes less energy per unit weight than the fish when they travel the same distance. For years, these sort of comparisons have dominated…
Make one change, cause another - everything’s closely linked. Dominic Lipinski/PA

Drive to improve housing can bring unintended consequences

The UK is one of only a handful of countries that has put in place legally binding targets to reduce greenhouse gas emissions by 80% by 2050, relative to 1990 levels. How the country intends to go about…
Australian Treasurer Joe Hockey hosting the recent G20 finance ministers’ meeting in Sydney, a lead-up event to November’s Brisbane Summit. AAP Image/Dan Himbrechts

Double or nothing: Australia’s G20 energy challenge

When Australia hosts the G20 Leaders’ Summit in November, a top agenda item for its “Brisbane Action Plan” will be “practical actions to improve productivity and competitiveness”. So here’s a good place…
A mini power plant in a North Sydney basement. Trigeneration plants like these generate electricity, heating and cooling far more efficiently than with mains power. AAP/Short Communications, Girrit Fokkema

How to save business billions, without cutting renewable jobs

The debate about the future of Australia’s Renewable Energy Target (RET) has largely focused on the issue of immediate costs to business. But if we’re thinking about Australia’s long-term economic interests…

Natural gas leaks more than predicted

Natural gas wells in the USA have considerably higher levels of leakage — fugitive emissions — than officials predicted…
A protester makes her feelings clear about the pink batts scheme in 2010. AAP Image/Alan Porritt

Pink batts: what did it teach us about building better buildings?

The political fallout over the ill-fated Home Insulation Program continues, with former prime ministers Kevin Rudd and Julia Gillard now having been summoned to appear before the Abbott government’s royal…
Restructuring the market is harder than it looks. David Cheskin/PA

Ofgem faces select committee, but market reform still lags

With high energy prices all anyone can talk about this winter, Ofgem’s interim chief Andrew Wright appeared before MPs today to defend the regulator’s performance. Predictably, he was met with some hostile…
Using less energy costs less. urbansolar

High bills? The cheapest energy is energy we don’t use

What’s the world’s most important fuel, as we head into the 21st century? Oil, coal, gas, renewables? A recent International Energy Agency report stated the most important fuel for the future is energy…
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…

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