Hot Water Trial

Location: Rhyll, Phillip Island
Start date: 1 March 2026
Trial duration: 12 months
Project partner: Totally Renewable Philip Island

Overview

Around 60 households in Rhyll with controlled load electric hot water systems will have their hot water heating schedules changed from night-time (11 pm to 7 am) to daytime. This change means hot water systems will operate during peak solar generation hours (9 am to 3 pm), making use of the region’s abundant renewable energy. Households will keep the existing supplementary boost period from 4 am to 6 am.

The trial

  • supports power quality and network reliability
  • helps stabilise voltages and reduces the need for network upgrades
  • supports the local community’s energy goal of transitioning to 100% renewable energy
  • provides data so we can model the impacts of scaling this trial across our network

What are the benefits?

  • Maximises local solar, using excess local neighbourhood solar energy during the day
  • Supports local solar systems, allowing more homes to install solar and export more electricity to the grid
  • Reduces reliance on coal-fired electricity at night when the grid typically relies more on fossil fuel generation
  • Potential savings for residents who may be able to negotiate better rates with their electricity retailer by demonstrating their daytime energy usage

Where can I get more information?

Public Information Sessions

Friday 2 January, 4pm to 8pm
Information stalls  Rhyll Twilight Markets 
Friday 16 January, 4pm to 8pm 
Information stalls
Rhyll Twilight Markets 
Saturday 24 January, 11 am to 12.30 pm 
Public meeting 
Rhyll Community Hall 
Saturday 21 February, 11 am to 12.30 pm 
Community drop-in session 
Rhyll Community Hall 

Or email Totally Renewable Phillip Island at totallyrenewablephillipisland@gmail.com.

FAQs