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Blue Tongue Berries Off-Grid Organic Blueberries

Their off-grid system was half the cost of connecting to the mains grid, and they have incorporated a multitude of sustainable passive house concepts.

Blue Tongue Berries Off-Grid Organic Blueberries
Blue Tongue Berries Off-Grid Organic Blueberries

Objectives & Site Considerations:

Cynthia and Nick moved from inner city Melbourne to the countryside in 2001 after stumbling upon a beautiful 20-acre property high on a hill, just outside of Seymour in central Victoria. The property had absolutely no power, and their first 2.5kW off-grid system ended up costing half that of trying to connect to mains power. In 2017 they upgraded to their current Off-Grid Energy designed off-grid system, with additional panels added in 2022. The current 16kW system, which includes a 1kW wind generator, provides power to several buildings including an on-farm cafe and accommodation for farmstay guests. Over the years they have incorporated many sustainable design concepts on the property including the construction of a passive solar strawbale farmhouse.

To have a look at what Blue Tongue Berries are doing next, reserve a table at the Cantina, or book into their Farmstay; check out their website here: https://www.bluetongueberries.au/

Load Analysis:

Average summer demand: 26kWh
Average winter demand: 26kWh
Demand surge: 4.3kW

System Design:

  • Selectronic SP Pro 5kW inverter/charger
  • BAE VRLA sealed gel batteries (46.5kWh)
  • REC solar modules (6.67kW)
  • Fronius Primo 6kW solar inverter
  • 1kW Soma wind turbine
  • 5kVA back diesel generator

System expansion in 2022 added an extra 8.88kW of solar with another 6kW solar inverter.

Photos courtesy of Blue Tongue Berries

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