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Cromford, Derbyshire The towpath is popular with Derbyshire folk making their version of the passeggiata, often with dogs, and the water vole is easily spooked

William Jessop was a generous man, always ready to give a fellow engineer a leg up. Building the Cromford canal, in the Derbyshire Dales, he hired Benjamin Outram, the son of a local investor, as his assistant. Their great work terminates at Cromford Wharf, once a harbinger of the industrial revolution, now dozing in the evening sunshine, its crumbling stonework the colour of honey.

The northern section of the canal, five miles from the wharf to Ambergate, is a site of special scientific interest, noted for being a last redoubt for water voles, a change of use I doubt Jessop could have foreseen.

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Adani ‘categorically’ rejects letter signed by 91 prominent Australians as protesters confront Queensland premier during tour of Adani’s Indian HQ

Cricket great Ian Chappell has stood by his opposition to the Adani mine proposal as part of a group of prominent Australians branded “elitist wankers” by a federal government MP and “a very small group of misled people” by the Indian miner.

Chappell said it was “worthwhile” if joining his brother Greg in an open letter calling on the Indian miner to abandon its coal plan thrust the issue into the public spotlight in its cricket-loving homeland.

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Tesla has filed to issue $US750 million in convertible notes, and another one million shares of stock in advance of its Model 3 roll-out.

Seawater Hydro could potentially help South Australia resolve its highly publicised energy problems.

Continued surge in NSW wholesale electricity costs could provide even more incentive for rooftop solar and storage.

350.org Australia today announced the launch of a #StopAdani Roadshow.

Finkel says other countries “well advanced” on energy policy, technology reform, as many of 360 submissions plea for bipartisan approach.

South Australia has the most wind energy in the country. Wind turbine image from www.shutterstock.com

The last couple of days have brought the differences between state and federal energy policy into stark contrast. South Australia has unveiled an energy plan in which the state takes a much greater role in the energy industry. The plan includes storage, a new gas plant and greater powers for the state over the National Electricity Market.

SA has the highest proportion of wind energy in Australia – and the federal government has consistently blamed this for the widely reported blackouts last year.

In a acrimonious joint press conference with South Australian Premier Jay Weatherill on Thursday, federal energy minister Josh Frydenberg reiterated that states are responsible for the stability of their electricity system. The federal government has cast doubt on the legality of the plan.

Is reliability a state responsibility?

The federal government has repeatedly claimed that the SA government can’t keep the lights on. More generally, it has implied that the states are responsible for electricity system stability.

Under the National Electricity Market (NEM) framework, these statements are somewhat misleading.

The SA electricity industry is entirely privatised. The NEM governance framework is run by national institutions under the Council of Australian Governments Energy Council, a forum of federal and state energy ministers. This framework is supposed to ensure the system reliably delivers electricity to all consumers.

System security and reliability are the responsibility of the Australian Energy Market Operator. Network investment is the responsibility of private network businesses, overseen by the Australian Energy Regulator.

This governance system leaves little space for the SA government to take action to ensure system security. On the contrary, the NEM was set up to remove direct government involvement in the electricity sector. This was because a market was considered more efficient to achieve the same service.

The federal government has blamed wind energy for SA’s reliability issues. But, even if wind is one factor among many, did the SA government exacerbate the risk of blackouts?

South Australia has actively encouraged co-existence of wind farms and farming activities in its planning legislation. Land use planning laws can have great influence on the uptake of large-scale renewable energy, as Victoria shows.

While state renewable targets have been blamed for uneven investment in renewable energy, the SA target of 50% by 2050 is not actually backed by a particular mechanism. Wind generators settled in South Australia because it has good wind resources and favourable planning laws.

They were financed under the federal Renewable Energy Target, but also by the ACT reverse auction schemes, which led to considerable investment in SA.

The review of the NEM, chaired by Chief Scientist Alan Finkel, will consider how climate and energy policies can be aligned. As the policymaker for the NEM, the COAG Energy Council should be the responsible authority, not individual states, to resolve any mismatch.

Is South Australia breaking the rules?

Apart from public investment in storage and gas, SA’s energy plan aims to give the state energy minister “strong new powers to direct the national market in case of an electricity supply shortfall”. The federal energy minister has implied that some of the SA plans may be illegal and that the government will be seeking legal advice.

But is SA breaking any rules?

The governance arrangements for the NEM are based on an intergovernmental arrangement, which relies on federal-state cooperation. The Australian Constitution contains no clear powers to regulate for energy. This means that having both levels of government work together to overcome these constraints was necessary to set up and manage a national electricity system.

The intergovernmental agreement that sets up the NEM is the Australian Energy Market Agreement (AEMA). All governments – state, territory and federal – have signed this. The AEMA covers the setting up of the market institutions and legislation. Based on this document, all states have passed state legislation that contains the National Electricity Law.

The AEMA includes provisions for amending legislation. These mean that only the COAG Energy Council can amend energy market legislation. Whether the council would agree to SA ministers getting special powers is doubtful.

However, the agreement is political and not legal. Indeed, one clause states that “this agreement is not intended to give rise to legal obligations” for the state and federal signatories.

Where does this leave SA’s plan? It does not break the law, but, depending on how the actual legislation is drafted, it may well fail to pass COAG.

A dangerous development or much-needed leadership?

Due to the limits of the constitution, intergovernmental arrangements play an important role in Australian policy-making. An increasing number of agreements covers areas such as water, environment or trade.

As we’ve seen with debate about the Gonski deal on education funding, these agreements require trust between all parties and should not be lightly departed from.

SA’s frustration with the lack of COAG leadership and the blame game for the blackouts is understandable. The SA energy plan may galvanise energy market reform and lead to a better system. It can be interpreted as taking leadership in the energy-climate debate, where none has been forthcoming from the federal government or COAG.

On the other hand, a danger exists that other states decide to follow SA’s example. With a review of the market in process, one-sided action seems counterproductive.

An agreement on a timely and fair energy transition needs all parties at the table. It will need national coordination and a whole-of-system perspective. Finkel’s task of overhauling the electricity market may just have been made even harder.

Anne Kallies does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.

The Budget Blueprint would cut more than 50 programs from the EPA, including Obama's Clean Power Plan.

Fifty years ago, the supertanker the SS Torrey Canyon hit rocks off the coast of Cornwall, spilling more than 100,000 tonnes of crude oil. But it was the clear-up operation that led to the real environmental disaster.

Deputy prime minister wants bans lifted on exploration and development, and royalties paid to landholders

The Nationals leader, Barnaby Joyce, has called for states to lift the bans on coal seam gas and has urged them to follow South Australia’s plan to pay royalties as compensation to landholders.

The deputy prime minister, who is also the minister for agriculture, said lifting the gas bans should not occur on a carte blanche basis because of the need to protect prime agricultural land and productive aquifers. However, he did not say how prime agricultural land should be defined.

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The administration has unveiled President Donald Trump’s first budget, including a proposed 31% cut in funding to the Environmental Protection Agency. The cuts would remove funding for the Clean Power Plan and scrap all climate change research programs and partnerships. White House budget director Mick Mulvaney confirmed on Thursday that the new administration had no interest in funding to combat climate change, saying: ‘We’re not spending money on that any more. We consider that to be a waste of your money’

• Budget would gut EPA programs tackling climate change and pollution

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A woman stumbles across rafts of debris to make it to safety after being caught in a huge mudslide that crashed through the outskirts of Lima. Media reports in Peru said Evangelina Chamorro Díaz, 32, escaped without serious injury. “She is a little confused, but she is very well and will recover because she is a warrior and thank God nothing serious happened,” health minister Patricia Garcia said after visiting Díaz on Thursday. Several days of unusually heavy rains have killed at least a dozen people in the country.

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It took a couple of tweets, and at least one one-hour long phone call, but it seems pretty clear that Tesla founder, CEO and billionaire Elon Musk has helped turn the debate around energy policy in Australia on its head. We can’t be sure what was said in the phone call between Musk and Turnbull […]

MCS takes some haddock fisheries off green list – but Scottish fishermen accuse it of ‘dressing advocacy up as science’

It is among the most popular fish in the UK, but haddock may soon be off the menu in some fish and chip shops because of dwindling stocks.

Haddock from three North Sea and west of Scotland fisheries have been removed from the Marine Conservation Society recommended “green” list of fish to eat, after stocks fell below the acceptable levels in 2016.

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S.A. government has its eyes on installing five world-first gas plus battery units - each with 50MW of gas power and 10MW of battery storage - across the state.

Researchers trace the parental history of Canadian rocks to a time just after Earth's formation.

First Nations lobby group will support remote communities looking to make transition – and tackle climate change

Like so many of the Indigenous communities dotted across the Australian continent, the remote communities in north-west New South Wales are struggling. “These are not happy places,” says the Euahlayi elder Ghillar Michael Anderson.

Many of the 300 or so residents of Anderson’s hometown of Goodooga rely on welfare, he says. Exorbitant electricity bills – up to $3,000 a quarter for some households – further exacerbate the poverty. “We’re always at the end of the power line, so the service that is there is quite extraordinary in terms of cost.”

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A tunnel under construction beneath a Norwegian mountain is just one link in a new grid that will cross national borders

More than 2km down a dark tunnel deep inside a Norwegian mountain, a drilling machine is boring out holes in the rock. It’s part of a major project that will connect Britain to Norway’s huge hydroelectric power supplies, passing power lines through the mountain near Kvilldal, southwest Norway, before laying the world’s longest undersea power cable, 450km long, to Blyth in Northumberland.

It will take years to build, but when it is completed, the UK could import 1,400 megawatts of electricity, enough to power more than 750,000 homes. It will also allow Britain to export any surplus wind energy back to Norway.

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Former energy advisor Ross Garnaut says Australia is 'a bit late' coming to the energy transition happening in the rest of the world.