Efficiency Archives - Renew Economy

Commentary

How electricity meters distort the role of rooftop solar generation
On-site consumption of PV output is invisible to the meter, and shows up as a reduction in electricity consumption. Does this matter? Yes, it does.
Alan Pears

May 22, 2025

32
Policy & Planning

US moves to repeal water heater efficiency standards in all-in attack on decarbonisation
US House of Reps votes to repeal energy efficiency standards for water heaters, as it works through the list of home appliances on Trump’s “unleash American energy” executive order.
Amalyah Hart

Mar 5, 2025

15
Solar

Longi sets new silicon solar cell efficiency world record of 26.8 pct
PV giant Longi becomes the first ever Chinese solar company to set a world record for silicon solar cell efficiency.
Joshua S Hill

Nov 22, 2022

0
Solar

Three little PV pigs: UNSW PhD candidate’s winning tale of solar cell efficiency
University of NSW delivers reminder of its world-leading role in solar research and development – using three pigs, three home solar systems, and just 180 seconds.
Sophie Vorrath

Sep 18, 2020

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Trump budget eviscerates climate and clean energy programs
The Budget Blueprint would cut more than 50 programs from the EPA, including Obama’s Clean Power Plan.
Bobby Magill

Mar 17, 2017

8
Conservatives push carbon tax to address climate crisis
A group of prominent US Republicans has proposed a carbon tax that pays cash dividends to Americans.
John Upton

Feb 9, 2017

6
States cut power plant emissions ahead of new EPA rule
Obama’s climate ultimatum to states: Control carbon dioxide emissions from electric power plants or the federal government will do it for you.
Bobby Magill

Jul 15, 2015

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Climate change may put power grid at risk in the west
The ravages of climate change could severely hurt the ability of utilities in the 11 Western states to generate power unless they “climate proof” their power grid.
Bobby Magill

May 19, 2015

0
MIT says ‘massive’ solar energy expansion critical for climate
A “massive” global expansion of solar power — possibly enough to supply about a third or more of the world’s electricity — may be necessary by 2050.
Bobby Magill

May 11, 2015

1
Even China can cut out coal generation (mostly) by 2050
It may be possible for China to shake most of its reliance on fossil fuels by 2050, with renewables providing 80% of electricity needs.
Bobby Magill

Apr 21, 2015

4
New York’s smart grid research may shape U.S.
New York and its utility infrastructure are highly vulnerable to climate change-influenced extreme weather and rising seas.
Bobby Magill

Apr 13, 2015

0
Global Carbon markets pave way for clean energy investment
Following more than two centuries of fossil-fueled industrialization, an incipient era of carbon-pollution pricing is paying dividends to the climate.
John Upton

Feb 24, 2015

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