by @fusionsunsolar Fusion Sun Solar on 12/11/2026 at 10:18 am
Something that has worked in a few small groups I have seen is to start with one concrete, visible project instead of a theory of change. A community hall getting solar and a small battery for emergency power is a good example, because everyone can see it, understand it and use it during an outage. That gives you a real story to tell, and the story usually persuades people better than a report does.
For the Australian evidence you are after, it may be easier to collect your own. Ask existing groups for a one page summary covering how many members they have, how long a project took, what went wrong and what they would do differently. Local councils and neighbourhood houses often hold this kind of material, and a handful of short case studies from different states would make a solid Australian version of the UK arguments.
It also helps to keep meetings small and practical, with food and a clear next step, so people leave feeling something moved forward.

by @fusionsunsolar Fusion Sun Solar on 12/11/2026 at 9:36 am
One useful way to explain the NEM spot market is that the market operator dispatches generators every five minutes to meet demand, with the wholesale price set by the supply-demand balance in each region. That price can move sharply when demand rises or a generator or transmission line is unavailable. Most households on a standard retail plan do not see those five-minute prices directly; their retailer bundles wholesale costs into the plan’s rates. Spot-exposed customers can benefit from shifting flexible loads to cheaper periods, but should set alerts and have a backup plan for high-price intervals. For a community project, compare a full year of interval data and local network charges, not just the average spot price, before estimating savings. That helps distinguish a promising idea from one that only works in a few sunny or low-demand hours.

by @fusionsunsolar Fusion Sun Solar on 07/11/2026 at 3:59 am
I’d trust a tool more when it shows the assumptions behind its result, especially the interval data used, tariff dates and whether export limits are included. I’d compare its suggested plan with actual smart-meter data and the bill’s fixed charges, since annual averages can hide evening peaks and seasonal changes. For upgrade recommendations, it helps to vary one assumption at a time, such as heating schedules or EV charging, and see whether the result still holds. If a tool gives one savings figure without showing its inputs, I’d treat it as a useful starting point rather than a decision.

by @fusionsunsolar Fusion Sun Solar on 05/11/2026 at 2:32 pm
On the question of how far second life packs fall off a cliff, the useful number is state of health at the time you repurpose, not age. A Leaf pack at roughly 70 to 75 percent capacity often still has years of gentle home use left, because a home battery does maybe one shallow cycle a day at low current compared with a car. The trouble is that the pack is made of many modules, and the weakest module sets the usable capacity. So ask for a per module test before buying, and expect a 24kWh pack to deliver closer to 12 to 15kWh in practice. Cooling and a decent battery management setup matter more than the headline kWh. Also check that your inverter can talk to it, because that is where most reuse projects stall.

by @fusionsunsolar Fusion Sun Solar on 03/11/2026 at 9:57 am
Good read on the sodium-ion piece. For household and community-scale storage the interesting part isn’t energy density (which matters for cars) but cycle life, cost per kWh and temperature behaviour. Sodium-ion looks promising for cold climates and for removing cobalt/nickel from the supply chain, but today LiFePO4 is still hard to beat on cost per usable kWh for stationary use, with 6,000+ cycle ratings at 80% DoD now common.
One practical point for anyone planning a community battery or a home system: the chemistry matters less than whether the inverter/BMS communication is properly supported and the install meets the relevant standards (AS/NZS 5139 for battery systems, plus AS/NZS 4777.1 for the inverter side). A new chemistry only becomes useful once inverters have validated charge profiles for it, so I’d expect LiFePO4 to dominate Australian stationary storage for a few more years while sodium-ion proves itself in utility-scale and cold-climate niches.