Tesla is carrying out its final tests before the world's largest battery installation goes live on Friday, hitting Tesla chief Elon Musk's 100-day construction target.

Shell has announced improved cash flow guidance as it plans to cut carbon and lift renewables investment.

Power prices will fall and renewable energy will get a boost under new electricity trading plans.

The chance of major summer blackouts has been cut as energy operators have found extra power for the east coast.

Origin Energy will cut more than half a billion dollars in annual costs over the next 18 months at its Australia Pacific LNG (APLNG) joint venture.

The amount of new coal mining output being assessed by the Berejiklian government eclipses the Adani megamine proposed for Queensland and dwarfs its carbon emissions, according to analysis by Lock the Gate.

Renewable energy will be cheaper to generate than coal as soon as 2020, EY energy leaders say.

The world's biggest miner and Wall Street's top-ranked merger firm are among the high-profile backers of a remote solar project nestled among banana crops in Australia's far tropical northeast.

Combustion has been found to release particles of titanium, researchers say.

Atlassian co-founder Mike Cannon-Brookes says he has "never been more happy to lose a bet" than his high-profile wager with fellow billionaire Elon Musk over the installation of the world's largest lithium battery in South Australia.

Federal Energy Minister Josh Frydenberg has called the national energy guarantee the only game in town, but industry says it is time this game had rules.

The Turnbull government has avoided an all-out brawl with the states and territories over its signature power policy, securing agreement from most energy ministers to progress the proposed national energy guarantee.

Tasmania is partnering with the Australian Renewable Energy Agency (ARENA) to begin work on a study for a second energy pipeline between the state and the mainland, creating new opportunities for renewables investment.

The Turnbull government has avoided an all-out brawl with the states and territories over its signature power policy, securing agreement from most energy ministers that more work will be done on the proposed national energy guarantee.

French energy giant Engie and Japan's Mitsui have sold the Loy Yang B coal-fired power station to Alinta Energy for more than $1 billion.

Respected energy group says Turnbull government's energy plan has a weak emissions goal that would all but halt large-scale renewable investment.

The billionaire's giant battery being built in South Australia will be energised in coming days and begin testing, indicating Tesla is on track to meet a 100-day self-imposed deadline to install the system.

The Turnbull government's National Energy Guarantee is set for a rocky reception when energy ministers meet in Hobart, with one state declaring new modelling confirmed its 'worst fears', and another saying it was 'deeply disappointing'.

• ANALYSIS

Why Frydenberg's modelling is unlikely to win over critics from both ends of the political spectrum.

The energy storage market will see a 12-fold growth to 2030, increasing to 125 gigawatts globally, a new energy forecast report states.

The Australian Energy Regulator has found ongoing energy affordability issues has lead to an increase in electricity disconnections and growing energy debt, and is carrying out a review of retailers' hardship obligations.

The combination of a major US pipeline leak of 795,000 litres and additional OPEC production cuts saw oil prices jump more than two per cent after a series of falls.

New technology will provide free power to King Island as it aims to prove low-cost energy generation claims.

• EXCLUSIVE

The Turnbull government's plan to keep the worn-out Liddell power station running for another five years would cost about $1.4 billion more than replacing it with clean energy, and spew millions of tonnes of damaging carbon pollution, a new analysis shows.

About 1.8 million Australians with rooftop solar could lower their bills and take control of their electricity supply by storing their own energy, but many fear a repeat of the failed home insulation scheme, a report has found.

Providing a $1 billion loan to underwrite Adani's proposed mega coal mine would "unpick the progress" of the Paris climate agreement.

The surge in new wind farm developments has failed to produce a concurrent upswing in complaints.

Takeover rumours have proved a boon for Santos' share price, but may have driven valuations too high for a formal market offer.

Big Oil is under pressure, unloved and on sale. So getting dumped by the world's biggest investment fund wouldn't be welcome news.