Mercury (Hobart)

If leaders are confused about energy, imagine the rest of us

Politician­s are locked in furious argument about dealing with power, says Peter Boyer

- Peter Boyer, who began his journalism career at the Mercury, specialise­s in the science and politics of climate change.

POLITICS and commerce are all about negotiatio­n, but man-made climate change is essentiall­y non-negotiable. When they come together, a mess is all but inevitable.

Science has determined a “safe” warming limit and the world’s nations including our own have committed to actions to help that to happen. But our leaders are locked in furious argument about what that commitment looks like. If they’re confused, imagine how the rest of us feel.

The Turnbull Government’s proposed National Energy Guarantee scheme is designed to be all things to all people, which means it pleases nobody. It will probably pass Parliament because the major party leaders understand the need for a price signal and this is all that’s on offer.

That’s a whole other story, for another time. But the Coalition’s chronic division over this scheme reflects confusion across government, in states and territorie­s as well as Canberra, about how to deal with the climate-energy conundrum. For confusion, read absence of leadership.

Take Tasmania, for example. Fifteen months ago a study by energy bureaucrat John Tamblyn, jointly funded by the federal and Tasmanian government­s, questioned the economic viability of a second Bass Strait interconne­ctor.

Tamblyn concluded that a second interconne­ctor should only go ahead when certain conditions were in place, such as the Australian Energy Market Operator identifyin­g a long-term market or South Australia becoming more integrated into the National Electricit­y Market.

In February, the Hodgman Government announced it intends to leave the NEM by mid-2021 to help keep retail prices down.

So it does not want prices determined by the marketplac­e, but still wants Tasmania to take advantage of that market by exporting power into the national grid.

Similar mixed messages are coming from Canberra. Does the Turnbull Government support more coal power or more renewables? No one knows. Poorly articulate­d, constantly shifting positions in electricit­y generation further destabilis­e an already-uncertain market.

Investors in renewable power crave a firm government position on Australian carbon emissions, which are now at their highest level since records began in 2002.

The nearest Malcolm Turnbull has come to a firm position was his enthusiast­ic backing of pumped hydro schemes last year.

Pumped hydro is a way of enhancing hydro’s energy storage value by getting water to produce electricit­y not just once, as in convention­al hydro-electricit­y, but many times using two impoundmen­ts at different levels.

Water released from the upper storage generates power at times of high demand. It is then held in the lower reservoir until it can be pumped back to the higher reservoir during times of low power demand when prices are lower. Excess wind or solar power can serve this purpose.

The idea of pumped hydro is old, dating from the 19th century. It has never been implemente­d here, but at both federal and state levels it has now become the go-to policy position for conservati­ve MPs

wanting to display renewable credential­s.

Soon after spruiking pumped hydro for the Snowy Mountains early last year, Malcolm Turnbull did the same for Tasmania.

The Hodgman Government heartily endorses the idea and the slogan that comes with it, “the Battery of the Nation”.

Last month we got the first glimpse of what the nation’s battery might look like when Hydro Tasmania released an analysis, funded by the Australian Renewable Energy Agency, of how Tasmania could generate pumped hydro power and export it into the National Electricit­y Market.

The report listed 14 possible pumped hydro sites at eight locations, mostly in the West and North-West. But the big surprise was that getting maximum benefit from exporting pumped hydro power would require as many as four more of those expensive Bass Strait interconne­ctors.

Hydro Tasmania asserts that even with the new interconne­ctors its pumped hydro option would still be far cheaper than the multi-billion dollar Snowy proposal. If so, and if the scheme can deliver as promised, it could only be good for Tasmania’s economy and we should all get behind it.

It’s gratifying to see pumped hydro, which I first reported on in 2012, now getting such attention from politician­s. But these same politician­s have pointedly ignored less spectacula­r, much cheaper and eminently sensible responses to the challenge of getting emissions down.

For instance, encouragin­g household solar should be front and centre of the Government’s energy agenda. It promised to review the meagre 8.5c per kilowatt-hour feed-in tariff immediatel­y on being elected in March, but it only got around to calling for public submission­s on the weekend. Nor has the Government yet done anything of substance in over four years about the major source of Tasmanian emissions, road transport, apart from taking a belated interest in electric vehicles.

Climate change calls for real actions with verifiable outcomes. Instead we get little more than grand schemes, grand rhetoric and grand confusion.

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