A 15 kW off-grid solar system suits families of four to five people, powering fully electric homes with heat pump water heating. Both Deye/Pylontech and Sigenergy options offer expandable battery storage and solar panel arrays, with Sigenergy providing independent unit operation and EV charging integration capabilities.
4-5 Person All-Electric Household, Small Family with Electric Vehicle, Homeowners Seeking Redundant Power Systems, Regional Property Owners for All-Electric Living
15kW off-grid system for 4-5 person all-electric homes. Sigenergy (26kWh battery, 20kW solar expansion) or Deye/Pylontech (18kWh battery, 18kW solar expansion) configurations. 12kW dual inverter. Heat-pump hot water recommended.
15kW off grid solar systems A 15 kW system is a suitable choice for a household with 4-5 people, providing power for an all-electric home. The only recommendation is to use a heat pump for hot water.
Deye/Pylontech 15kW System extensions: Batteries easy to add at a later stage Solar panels array can be extended up to 18kW
Sigenergy 15kW System inverter/battery unit operates independently. In the event of a failure in any unit, the others will continue to provide power without interruption.
Sigenergy Possible Extension: Batteries easy to add at a later stage Solar panels array can be extended up to 20kW DC charger for Electric vehicle can be integrated into the system
Fred installed our solar. Very honest very reliable. He goes above and beyond. Tries his best to help. Does a great job. I recommend.
Dino Papa
Verify reviewQuotation & installation process. They have been unfailingly helpful and never failed to communicate pro-actively & effectively.
Andrew Webb
Verify reviewFred did a great job was extremely patient with the slow build Clean and tidy Explained what he was doing along the process
Darcy Joynson
Verify reviewFred installed our system 2 years ago and it has been fantastic. Fred was great and efficient, great communication. Highly recommended
Hayley Richards
Verify reviewUpdated our off grid solar. Cannot recommend this company enough. Fred is very Knowledgeable, honest and very reliable. Great Job.
Lesley
Verify review
Two inverters. One system. Built-in redundancy from day one — if one fails, the other keeps running. This TwinGuard installation near Ballarat currently runs 12kW of solar on a newly built home and is wired to scale all the way to 24kW when demand grows.
100UP has partnered with Re-Energy to handle all off-grid solar installations within a 100km radius of Ballarat. Local installation and service from a team that knows the region, backed by 100UP supply and design expertise.
A message from South Africa turned into a cross-continent fix. One system, stuck and unsupported, back online within days.