The energy debate that's powering more than the election campaign | 7.30

Key Concepts

• Renewable energy transition
• Base load power vs. peak demand
• Gas-fired power generation
• Green hydrogen
• Nuclear power
• Gas price caps and domestic gas supply
• Energy security and affordability
• Investment in gas projects

Curry Curry Gas Plant: A Case Study

• Original Purpose: Initially intended to fill the gap left by the closure of the Liddell coal-fired power station.
• Evolution: Now seen as providing intermittent power during peak periods due to the surge in renewable energy.
• Cost Overruns: The project's cost has ballooned from an initial forecast of $600 million to at least $1.3 billion.
• Gas Supply Issues: The pipeline is too small, leading to the plant potentially starting operations on diesel.
• Green Hydrogen Ambitions: Labor pledged $700 million to make it run on green hydrogen, but this remains a long-term goal.
• Current Fuel Source: Gas will be the primary fuel, with diesel as a backup. On-site gas storage allows for 10 hours of operation.
• Operating Time: The plant is expected to operate for less than 10% of the time.

Renewable Energy and Base Load Power

• Renewable Growth: Renewable energy contributed 46% of power in the last quarter of the previous year, reaching up to 75% at times.
• Coal Decline: Coal-fired power contributed less than 50% to the system for the first time.
• Base Load Argument: Saul Griffith argues that the concept of base load power is outdated, originating from the inflexibility of coal-fired power stations.
• Peak Demand: Australia's energy challenge is managing evening and morning peak demand, not base load.

Gas Market Dynamics

• AEMO's Assessment: The Australian Energy Market Operator (AEMO) forecasts peak day and seasonal supply gaps in southern states from 2028, with annual gaps from 2029, requiring new supply investments.
• Gas Usage Decline: Domestic gas usage has declined by 26% in the last 10 years.
• Industrial Gas Demand: Heavy industry uses a significant amount of gas, but this is expected to decrease as renewable energy becomes more cost-effective for industrial processes.

Nuclear Power Debate

• Cost Comparison: CSIRO and AEMO reports indicate that solar and wind are cheaper than nuclear, even with the cost of storage (batteries and pumped hydro).
• Home Batteries: Saul Griffith suggests that a widespread rollout of home batteries could provide more power than the proposed nuclear power stations.
• Timeframe: Nuclear power plants would take at least 15-20 years to build, by which time wind and solar will be more widespread and cheaper.

Coalition's Gas Policy

• Domestic Gas Reservation: The policy would force exporters to sell more gas to the domestic market at a fixed price.
• Opposition's Argument: Shadow Resources Minister Susan McDonald argues that this policy is different from the government's price cap, which she claims has increased prices.
• Supply and Price: The coalition aims to drive down prices by increasing supply, decoupling domestic prices from the export market.
• Investment Concerns: There are concerns that a price cap could discourage investment in new gas projects.
• Industry Feedback: Some companies have expressed concerns about future investment decisions due to the difficulty of obtaining approvals in Australia.
• Gas Allocation: The policy seeks to ensure that an adequate amount of gas remains in the domestic market so that Australians benefit from the resource.
• Impact on Power Bills: Approximately 17% of Australian gas goes into energy production, so the policy is expected to have a smaller impact (around 3%) on electricity prices but a larger impact on gas supply for homes and businesses.

Conclusion

The transcript highlights the complex and evolving debate surrounding Australia's energy future. The discussion encompasses the transition to renewable energy, the role of gas as a transition fuel, the potential of green hydrogen, and the controversial proposal for nuclear power. The Curry Curry gas plant serves as a case study of the challenges and complexities involved in energy projects. The Coalition's gas policy aims to ensure domestic gas supply and affordability, but faces concerns about its potential impact on investment in new gas projects. The overall theme is the need to balance energy security, affordability, and environmental sustainability in Australia's energy policy.