The Bullroarer - Friday 7 March 2008

ABC - Qld solar energy plan 'band wagon move'

The Queensland Opposition says the State Government is following its lead on renewable energy policy.

The Premier today unveiled a strategy to make solar energy systems cheaper for Queenslanders to install.

Anna Bligh says the Government will use its purchasing power to bulk buy 1,000 solar panels, which should cut the price by a third.

News.com.au - National green energy approach closer

THE Commonwealth and states have taken another step towards unifying renewable energy targets, Federal Climate Change Minister Penny Wong says.

After a meeting of climate change ministers today, Senator Wong said the governments would next consider a plan to implement the Renewable Energy Target by next year.

The national scheme is aimed at reducing greenhouse gases by ensuring 20 per cent of electricity is generated by renewable energy sources by 2020.

Scoop - 90% renewable energy target is achievable
I can't help but compare the Australian goals (above) with New Zealand's (below). Does anybody know if this is really feasible in the timeframe proposed?

The Labour-led government’s target of generating 90 percent of electricity from renewable sources by 2025 is readily achievable, Energy Minister David Parker says.

Mighty River Power’s announcement today for a proposed 132 megawatt geothermal power plant to be built at Rotokawa, north of Taupo, is further evidence that the goal makes economic as well as environmental sense, the Minister said.

The Age - Widespread energy granted NZ permit

Widespread Energy has been granted a petroleum exploration permit for an area of 3269 square kilometres off the West Coast of New Zealand's South Island between Hokitika and Punakaiki.

Work on the permit in the next 12 months would include reprocessing of 200km of seismic data into a digital form that could be integrated with an existing digital data set, Widespread said on Thursday.

SMH - Premium fuel bowsers closed on cheapest day

THE State Government has accused petrol stations of refusing to sell premium unleaded fuel on Tuesdays - the cheapest day of the week - after a Government survey found that a quarter of Sydney's stations shut their premium unleaded bowsers that day.

The Australian - Labor urged to rethink transport

AUSTRALIA should consider charging car owners for road use based on trip distance, load and road type as part of a wider embrace of user-pays across the transport sector, National Transport Commission chief Nick Dimopoulos has suggested.

The NTC, which put a national transport policy framework to Australia's transport ministers last Friday, also recommended the hike in trucking fees the ministers adopted at that meeting.

But even pricing decisions like that one could be taken out of ministers' hands and transferred to a non-political statutory body akin to the ACCC if federal Transport Minister Anthony Albanese adopts advice he commissioned the NTC to produce.

ABC - Oil and gas production in Australia

A slight rise in Australian oil production in 2008-09 will be offset by decreasing production in the coming year and then into the future, according to ABARE forecasts. Technical difficulties in a number of oilfields including Mutineer-Exeter and Corallina in the north will significantly reduce production, as will falls in production from other mature fields.

Oil production is expected to decline to 28.9 gigalitres in 2012-13. As world consumption of oil continues, the value of Australian oil as a proportion of production will rise in the short term, with ABARE forecasting an increase in value to $11.4 billion in 2009-10.

Liquefied natural gas (LNG) production will continue to expand substantially in Australia, despite rising capital costs due to material construction needs.

Stuff.co.nz - Exxon sees '08 capital spending up 20 per cent

Exxon Mobil plans to increase its capital spending by about 20 per cent to $US25 billion ($NZ31.75 billion) in 2008 as it works to start up major projects in the face of industry-wide cost increases, the largest US company said.

Stuff.co.nz - Widespread Energy granted offshore West Coast permit

Widespread Energy has been granted a petroleum exploration permit for an area of 3269 square kilometres off the West Coast between Hokitika and Punakaiki.

Stuff.co.nzGovt to plug tax loophole used by oil industry

The Government is closing another tax loophole to protect its revenue base.

Ministers said today that without a change to the Income Tax Act, New Zealand could miss out on significant revenue from the burgeoning petroleum mining industry.

Scoop - 90% renewable energy target is achievable
I can't help but compare the Australian goals (above) with New Zealand's (below). Does anybody know if this is really feasible in the timeframe proposed?

I think it's feasible.

Remember that NZ is a country with a small population and a long coastline running roughly north-south in the "roaring forties" of latitude, so they've a lot of potential for wind, and if wave can be made commercially-viable, that too.

Their current power stations are,
- Coal-fired, 1,000MW, plus Gas-fired, 385MW, both at Huntly
- Geothermal, 400MW at Wairakei (though declining, since it's been going since 1958), and 90MW under construction at Kawerau
- Hydroelectric, 4,450MW (I think) across the country. This is pretty much maxed out.
- Wind, 322MW total at 8 different locations, 165MW under construction

In terms of delivered energy, NZ is about 68% renewable already. To hit 90% all they need to do is build a few thousand MW of wind, which as I said is quite doable. And really, with a well-managed national grid, they could be 100% renewable.

Of course, a "well-managed national grid" apparently is a big ask. There was a fortnight of power out in Auckland a few years back... four big lines went into the city, they were old and poorly-maintained, one went down so the idiots just put the same amount of total power through the other three, those heated up so a second one went down, and so on.

Of course they could also do some electricity conservation. They generate 42 billion kWhr, and have 4.1 million people, so that's basically 10,000kWh annually. Looking at the list of countries and their production (usually about the same as consumption) here, we see that NZ is 14th highest in the world. Considering that countries like Denmark use about 8,000kWh, Germany 7,000kWh and so on - well, I reckon they could cut back a bit without descending into dark impoverished misery.

Wow. NZ is so far ahead of us :-(

Well, they got a head start in many ways because of their unique geology and geography.

Their geology gave them a lot of hot steam rising to the surface already, so it seemed only logical to tap it, then go looking for more.

Their geology and geography combined means they have a lot of hills and mountains. Their geography means they get a lot of rainfall. Thus, many rivers they can dam up.

And their geography of being a landmass running north-south along the Roaring Forties gives them enormous wind power potential.

Whereas Australia doesn't have the obvious geothermal potential - it's there, but not bursting out of the ground saying "use me!" the way it did for the Kiwis, nor as many rivers, so not as much hydro potential. We've obvious solar potential, but solar got developed later than hydro and geothermal did. So even if each country had jumped on technologies the instant they appeared, we'd still be behind the kiwis.

Which is why we need to make a bigger effort in the rugby.

NZ also has a lot of ocean power potential (returning to my current monomania).

We have more solar resource than anyone (per capita) though - we should be generating half our power from CSP one day (with plenty of thermal energy storage built in to the plants).

With Queensland's move it is not clear whether the householder or the electricity retailer initially buys the discount panels from the gummint or who gets the federal rebate. I note it is 1000 panels which at 6-12 panels per house may be fewer than 100 houses.

Is this on track for big carbon savings? Suppose the 1000 panels each generate 1kwh per day that's 365 Mwh per year saving about 153000 tonnes of black coal. Queensland digs up 160 million tonnes of coal a year for domestic use and export. The panels will save almost 0.1% of that.

At this rate to achieve 90% carbon cuts by 2050 a lot of people will have to die.