One shared solar and battery system for a group of homes or businesses. Reliable power where the regional line lets you down.
What it is
One shared power system that supplies a group of homes or businesses.
A microgrid links several buildings to shared solar, batteries and inverters. Everyone draws from the same system. It can run fully off-grid, or sit alongside a weak grid connection and keep running when it drops out.
It suits a cluster of 3 or 4 homes, a small estate, or a group of regional businesses tired of outages. It's a bigger project than one off-grid home, so we plan it with you from the start.
Who it suits
Share one larger system instead of each building your own.
Plan power once for the whole site, before the houses go up.
Keep trading when the line goes down. Shops, workshops and cool rooms stay on.
Places the grid doesn't reach, or reaches unreliably.
Battery racks, inverters and switchgear in a purpose-built room or shed beside the array.
Add homes, panels or batteries as the group grows.
How we plan it
We size the shared system on what it makes in a Ballarat July, across every home or business on it.
Load list. We add up what every home or business runs, and when.
Winter check. We model the shared system against a Ballarat July.
Storage and backup. At least 2 days of battery from full, plus a plan for long grey spells.
Then we design the plant room, the cabling between buildings, and how power is shared between sites.
Modelled for Ballarat using PVGIS solar data.
Bigger builds
Microgrids start with the same parts: big arrays, plant rooms and three-phase power.
Allendale Vic
Installing an off-grid solar system before construction is complete can be worth it, but only if the system is designed around the finished home's loads. This Allendale property used that window to run conduit, size the electrical room, and...
Scotsburn, Victoria
Scotsburn winery off-grid install (20km from Ballarat): 17kW solar, 12kW Sigenergy inverter, 16kWh battery. Sized for pumps, refrigeration, and processing equipment with battery for overnight loads. Strong daytime production offsets cloudy ...
Victoria · New South Wales · South Australia
PANO engaged 100up to power their remote fire-watching tower network across VIC, NSW, and SA. Each tower uses six 475W panels, Victron charge controllers and inverter, and two Pylontech US5000 batteries inside sealed IP-rated enclosures rat...
Questions
That’s up to the group. Some groups share ownership. Others have one owner who supplies the rest.
We design and build the system. Get legal and financial advice on the ownership setup.
Yes. A microgrid can run fully off-grid, or sit alongside a grid connection and keep running when the grid drops out.
Grid-connected setups need approval from your network. We’ll talk through what suits your group.
It depends on what each home or business uses.
We start with a load list for every site, then size the shared system for a Ballarat July.
Yes, or at least some backup power source. Our design goal is to avoid routine generator use. Extended grey weather, unusually high consumption or repairs make backup power useful.
We discuss those limits when designing your power supply. Learn what generator-less off-grid design means.
Yes, if your system has capacity for expansion. Extra panels depend on inverter limits. Extra batteries must be compatible.
Learn more about balancing solar and battery expansion. Tell us your plans before installation so we can leave room to grow.
A stand-alone power system runs one site on its own. A microgrid links several homes or buildings so they share one power system.
A microgrid can run fully off-grid, or alongside a grid connection.
Get started
Tell us how many homes or businesses, where they are, and what's driving it. We'll tell you what a shared system could look like.
Fred reads every enquiry himself. He's the one who designs, installs and looks after 100UP systems.
