This phenomenal growth in output has significantly displaced fossil generation – especially gas. In the evenings (5 PM – 11.30 PM) – outside solar hours – gas contributed 5% to the state’s generation mix in 2020, whilst wind made up 14%. For the same time-of-day period in 2017, wind was 6% against gas at 9%.
Lumi Adisa, Head of Energy Market Analytics at Cornwall Insight Australia, said: “Whilst the displacement of gas by wind at night time is not particularly surprising, the shape of wind output in Victoria displays a unique characteristic; an afternoon bump. Victoria is the only state to show this remarkable shape and have wind contribute more to the generation mix in the afternoons (14%) than in the morning (13%).
“In addition, the overnight average wind contribution to the generation mix in the state (15%) was only 1% higher than the afternoon contribution (14%). Overall, wind in Victoria – specifically from western Victoria – has the most complementary market impact to solar in the NEM, making renewables in Victoria particularly impactful.
“This outstanding shape has also made wind in Victoria play a vital role in replacing the afternoon contribution (23%) from the retired Hazelwood power station and further impacting thermal generation.
“In 2017, gas and wind equally contributed an average of 8% to the generation mix in the afternoon. Fast forward to 2020, gas has dropped to 3% whilst wind has increased its afternoon share to 14%.
“These unique trends have fundamental impacts across the broader market through time-of-day pricing, constraints, and arbitrage value throughout the day.”
By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.
Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.
You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.
Further information on data privacy can be found in our Data Protection Policy.