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Australia is the runaway global leader in building new renewable energy


Thursday, 26th September 2019 at 8:31 am
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Despite our federal government’s somewhat timid approach to climate change action, Australia’s renewable energy industry has been growing at a cracking pace – 10 times the global average, write Matthew Stocks, Andrew Blakers and Ken Baldwin from Australian National University, in this article first published in The Conversation.


Thursday, 26th September 2019
at 8:31 am
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Australia is the runaway global leader in building new renewable energy
Thursday, 26th September 2019 at 8:31 am

Despite our federal government’s somewhat timid approach to climate change action, Australia’s renewable energy industry has been growing at a cracking pace – 10 times the global average, write Matthew Stocks, Andrew Blakers and Ken Baldwin from Australian National University, in this article first published in The Conversation.

In Australia, renewable energy is growing at a per capita rate 10 times faster than the world average. Between 2018 and 2020, Australia will install more than 16 gigawatts of wind and solar, an average rate of 220 watts per person per year.

This is nearly three times faster than the next fastest country, Germany. Australia is demonstrating to the world how rapidly an industrialised country with a fossil-fuel-dominated electricity system can transition towards low-carbon, renewable power generation.

Renewable energy capacity installations per capita. International capacity data for 2018 from the International Renewable Energy Agency. Australian data from the Clean Energy Regulator., Author provided

When the Clean Energy Regulator accredited Tasmania’s 148.5 megawatt (MW) Cattle Hill Wind Farm in August, Australia met its Renewable Energy Target well ahead of schedule.

We have analysed data from the regulator which tracks large- and small-scale renewable energy generation (including credible future projects), and found the record-high installation rates of 2018 will continue through 2019 and 2020.


Record renewable energy installation rates

While other analyses have pointed out that investment dollars in renewable energy fell in 2019, actual generation capacity has risen. Reductions in building costs may be contributing, as less investment will buy you more capacity.

Last year was a record year for renewable energy installations, with 5.1 gigawatts (GW) accredited in 2018, far exceeding the previous record of 2.2GW in 2017.

The increase was driven by the dramatic rise of large-scale solar farms, which comprised half of the new-build capacity accredited in 2018. There was a tenfold increase in solar farm construction from 2017.

We have projected the remaining builds for 2019 and those for 2020, based on data from the Clean Energy Regulator for public firm announcements for projects.

A project is considered firm if it has a power purchase agreement (PPA, a contract to sell the energy generated), has reached financial close, or is under construction. We assume six months for financial close and start of construction after a long-term supply contract is signed, and 12 or 18 months for solar farm or wind farm construction, respectively.

This year is on track to be another record year, with 6.5GW projected to be complete by the end of 2019.

The increase is largely attributable to a significant increase in the number of wind farms approaching completion. Rooftop solar has also increased, with current installation rates putting Australia on track for 1.9GW in 2019, also a new record.

This is attributed to the continued cost reductions in rooftop solar, with less than $1,000 per kilowatt now considered routine and payback periods of the order of two to seven years.

Current (solid) and forecast (hashed) installations of renewable electricity capacity in Australia. Author provided

Looking ahead to 2020, almost 6GW of large-scale projects are expected to be completed, comprising 2.5GW of solar farms and 3.5GW of wind. Around the end of 2020, this additional generation would deliver the old Renewable Energy Target of 41,000 gigawatt hours (GWh) per annum. That target was legislated in 2009 by the Rudd Labor government but reduced to 33,000GWh by the Abbott Coalition government in 2015.


Maintaining the pipeline

There are strong prospects for continued high installation rates of renewables. Currently available renewable energy energy contracts are routinely offering less than $50 per MWh. Long-term contracts for future energy supply have an average price of more than $58 per MWh. 

This is a very reasonable profit margin, suggesting a strong economic case for continued installations. Wind and solar prices are likely to decline further throughout the 2020s.

State governments programs are also supporting renewable electricity growth. The ACT has completed contracts for 100 per cent renewable electricity. Victoria and Queensland both have renewable energy targets of 50 per cent renewable electricity by 2030. South Australia is expecting to reach 100 per cent by 2025.

The main impediment to continued renewables growth is transmission. Transmission constraints have resulted in bottlenecks in moving electricity from some wind and solar farms to cities.

Tasmania’s strong wind resource requires a new connection to the mainland to unlock more projects. The limitations of current planning frameworks for this transition were recognised in chief scientist Alan Finkel’s review of the National Electricity Market, with strong recommendations to overcome these problems and, in particular, to strengthen the role of the Australian Energy Market Operator.

Now we need state and federal governments to unlock or directly support transmission expansion. For example, the Queensland government has committed to supporting new transmission to unlock solar and wind projects in the far north, including the Genex/Kidston 250MW pumped hydro storage system. The New South Wales government will expedite planning approval for an interconnector between that state and South Australia, defining it as “critical infrastructure”.

These investments are key to Australia maintaining its renewable energy leadership into the next decade.

The Conversation

About the authors: Matthew Stocks is a research fellow at ANU College of Engineering and Computer Science; Andrew Blakers, is a professor of engineering at Australian National University, and Ken Baldwin is director of the Energy Change Institute at Australian National University

This article is republished from The Conversation under a Creative Commons license. Read the original article.




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