Australian energy retailers must offer three hours of free daytime electricity
Australia is introducing “solar sharer” electricity plans that must include three hours of free daytime power (typically 11am–2pm, capped around 24 kWh) in several eastern states, to soak up surplus solar generation that increasingly drives wholesale prices negative. Commenters debate whether this is smart demand-shifting that benefits renters and battery owners, or a marketing gimmick where higher fixed and peak-time tariffs quietly offset the giveaway while weakening incentives for new rooftop solar. The thread also widens to broader questions about storage versus overbuilding solar, equity for renters and apartment dwellers on embedded networks, and how dynamic pricing and home batteries can reshape grid economics.
Policy specifics & scope
- Offer is not universal “free power”: retailers with >1,000 customers must offer at least one plan with 3 free hours (11:00–14:00), capped at 24 kWh/day.
- Applies to NSW, South Australia, SE Queensland; similar but separately regulated schemes in Victoria; WA expected later.
- Many plans already exist voluntarily; some offer higher caps (e.g. up to 50 kWh/day).
Economic trade-offs for consumers
- Free hours are offset by higher usage rates at other times and higher daily supply charges.
- Works best for households that can shift load or have large batteries; 9–5 workers without automation may pay more.
- Some see this as “not really free” or an IQ test; others note wholesale prices are often negative at midday so socializing that surplus is reasonable.
Grid management & solar oversupply
- Main goal is to soak up excess daytime solar that currently causes curtailment and negative prices.
- Policy is expected to flatten evening peaks and reduce stress on infrastructure.
- Some worry about synchronized demand spikes at 11:00 from timers and batteries, already visible as frequency dips.
Batteries, EVs & demand shifting
- Home batteries and EVs can arbitrage free hours; some households report near-zero or even negative bills.
- Government subsidies and interest‑free loans for batteries exist; debate over whether that’s efficient or just middle‑class pork.
- Grid‑scale batteries and pumped hydro (e.g. Snowy 2.0) are heavily debated on cost, lifetime, and system role.
Impacts on rooftop solar and generation mix
- Rooftop solar penetration is very high; midday prices make large utility solar less profitable without co‑located storage.
- Concern that free midday power undermines future rooftop solar ROI and shifts the “best” investment to bigger batteries instead of new panels.
Equity, renters & embedded networks
- Renters, apartment dwellers, and those on embedded networks often cannot access the offer or install batteries/solar.
- Embedded networks in new apartment blocks are described as opaque, sometimes exploitative, and excluded from current schemes until future regulation.
Smart meters, dynamic pricing & data
- Smart meters are required; some states have nearly complete rollout.
- Benefits cited: dynamic pricing, automation, better demand response.
- Concerns: privacy, future use to justify punitive peak prices, and general distrust of data abuse by companies/government.
Broader energy strategy & behavior
- Thread debates batteries vs more solar vs nuclear vs gas peakers; several argue nuclear is uneconomic in Australia.
- Many see coordinated demand shifting (AC, hot water, dishwashers, EVs) as a cheaper complement to massive storage build‑out.
- Others warn “free” energy encourages wasteful uses (resistive hot water, crypto, arc furnaces) and increases total system costs.