Rooftop solar surge eases wholesale electricity prices

More households utilizing rooftop photo voltaic to slash energy payments are taking stress off the nationwide electrical energy grid however wholesale costs stay elevated.

A yr on from a market suspension amid a world power disaster, unprecedented volatility and hovering energy payments, power market information issued on Thursday reveals fewer worth spikes for wholesale electrical energy.

East coast wholesale fuel costs fell from report ranges a yr in the past to common $14.20 per gigajoule for April to June, nonetheless the second-highest June quarter worth on report after final yr’s $28.39/GJ shocker.

The Australian Energy Market Operator stated newly linked or commissioned utility-scale renewable power through the quarter additionally helped scale back wholesale costs and greenhouse fuel emissions.

Queensland recorded a 69 per cent soar in output from photo voltaic farms and Victoria posted a 27 per cent enhance in wind manufacturing.

But new transmission is required to attach future wind and photo voltaic farms to interchange coal-fired energy crops, the market operator warned.

The April to June report discovered wholesale electrical energy costs topped $300 per megawatt hour throughout three per cent of so-called buying and selling intervals, in comparison with 26 per cent within the June quarter final yr.

Wholesale costs within the nationwide electrical energy market averaged $108/MWh, plunging from the report excessive quarterly worth of $264/MWh a yr earlier.

In WA, the place the state authorities has been compelled to import coal to maintain the lights on, a report worth of $113/MWh was set together with report electrical energy demand.

Signalling ongoing price of dwelling stress, that common nationwide market worth was nonetheless 31 per cent increased than the primary three months of 2023 – and the second-highest June quarter on report.

In June 2022, the market operator suspended the spot market as mills eliminated capability in response to cost caps and gas shortages.

With a excessive variety of models already out of service and the early onset of winter pushing up demand for electrical energy and fuel, it was inconceivable to proceed regular operations, it stated on the time.

The newest information captures the function renewable power is enjoying in pushing costs down and displacing the necessity for higher-cost coal and gas-fired era.

Rooftop photo voltaic era surged 30 per cent in comparison with a yr earlier, which lowered demand for electrical energy from the grid.

A elementary shift in home fuel provide can also be underway, pushed by declining manufacturing from fields linked to Longford Gas Plant in Victoria.

But Longford’s decline has principally been changed by a internet enhance in provide out of Queensland.

Source: www.perthnow.com.au