Off-Grid Solar Systems

15kW off grid solar system

15kW system with 26kWh storage and dual-inverter backup, supporting high-demand all-electric households.

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15kW Fully-Electric Family Off Grid Kit

15kW Fully-Electric Family Off Grid Kit

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.

BEST FOR

4-5 Person All-Electric Household, Small Family with Electric Vehicle, Homeowners Seeking Redundant Power Systems, Regional Property Owners for All-Electric Living

Summary

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 Arrary

15kW

Battery

18-26kWh

Inverter

12kW

Home

4 Bedroom

Occupancy

4-5

- People

Ask about the 15kW Off-Grid kit

15kW off grid solar systems

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

System Information

Recommended generator size: 12kVa or bigger

Sigenergy 26kWH or Pylontech battery 18kWH usable capacity—Both Lithium battery options come with 10 years warranty

2x 6kW Sigenergy or Deye inverters. 12kW capacity —Both with 10 years warranty and Remote monitoring

Jinko solar panels 15kW—25/25 years warranty

If you need a second opinion or your setup is more complex, Talk to Fred About your System first.

That's exactly what we're here for. Tell us about your home, your site, and how you live - we'll recommend the system that fits.

100Up Designed for Off the Grid Living.Solar, Inverter and Battery Sized Right

Based in Ballarat, Fred and the team design and install off-grid solar systems across regional Victoria.

REgional Victoria OFF-GRID INSTALLATION

Designed for Full Occupancy

We size for the home and its realistic future occupancy, and how you plan to use power today & in the future.

Built to Work through Worse Case Winters

We oversize arrays for dark Ballarat winter weeks, capturing enough energy in short sun windows to recover batteries fast.

Battery to Get Through Low Solar Days

48-Hour Battery Autonomy. Battery storage is designed to carry the household through consecutive low-production days.

Redundancy Where Reliability Demands It

Where practical, dual inverters and distributed battery storage reduce single points of failure.

See More about Off Grid Design & Sizing with 100up

REgional Victoria OFF-GRID INSTALLATION

Off-Grid Solar, Installed Across Regional Victoria

Based in Ballarat, Fred and the team design and install off-grid solar systems across regional Victoria.

Ballarat

Bendigo

Geelong

Grampians

Castlemaine

Talk to Fred About My System

Illustrative map of Ballarat and surrounding regional road network showing general service coverage area rather than precise geographic boundaries

Ferdi Nuredinovski

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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

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Quotation & installation process. They have been unfailingly helpful and never failed to communicate pro-actively & effectively.

Andrew Webb

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Fred did a great job was extremely patient with the slow build Clean and tidy Explained what he was doing along the process

Darcy Joynson

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Fred installed our system 2 years ago and it has been fantastic. Fred was great and efficient, great communication. Highly recommended

Hayley Richards

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Updated our off grid solar. Cannot recommend this company enough. Fred is very Knowledgeable, honest and very reliable. Great Job.

Lesley

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Fred was so helpful. I'll know who to call. THANK YOU

Paul Purcell

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Very responsive and professional

Hugh Wareham

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100up Off Grid Solar Projects - Designed & Installed

Regional Victorian Home Owners 100% Off Grid with properties just like yours

Technicians standing beside off grid solar battery system and inverter setup inside utility container

Iraak, Victoria

Modern Off-Grid Upgrade with Simpler, More Reliable Performance

This 8kW off-grid system delivers reliable, full-time power for a regional property near Mildura, with balanced solar and battery capacity designed for consistent daily living.

See the Installation

Solar panels covering the metal roof of a farm shed at Scotsburn winery, with vineyard rows visible in the background

Scotsburn, Victoria

Scotsburn Vineyard Powers Winery Operations with a 17kW Sigenergy Off-Grid System

Quietly powering a Scotsburn winery, this off grid system turns sunlight into certainty. Built for the rhythms of a working vineyard, it supports every season from first light to last pour.

See the Installation

Large ground-mounted solar panel array installed on open grassland with trees in background

Ballarat, Victoria

Ballarat Home Installs 20kW Off-Grid System for Full Household Power and EV Charging

A 20kW system doubles the winter energy headroom of a Ballarat home — enough to run all appliances, charge an EV, and build a buffer for the dull days that regional Victoria is famous for. Here is what that upgrade looks like in practice, and why the numbers work.

See the Installation

We Desgin, Supply & Install

Energy Independence & Protection

100up will help you plan and pick the best system to match your needs - give us a call

Expand and Upgrade Ready

Remote Monitoring & Support

Complete System Documentation

Proven Components & Accredited Installers

100% OFF GRID

Built to handle real-world energy demand with confidence. The 15kW off grid solar system is designed for reliable, long-term off-grid performance

15kW Off-Grid

Occupancy

4-5 Person

Home

4 Bedroom

Inverter

12kW

Battery

18-26kWh

SOLAR Arrary

15kW

Pricing Subject to Site Inspection, Roof & Ground SURVEY

Ask about the 15kW Off-Grid kit

Off‑grid systems designed by 100UP and installed by SAA‑accredited electricians using CEC‑approved products.

10+ Years Precision Installation

Ready to Plan your15kW Off-Grid System?

Talk to us about your property, your usage, and your timeline.

Call us direct on 1300 489 152 or send a text to 0400 092 621 — real advice from real off-grid solar installers.

Ask about the 15kW Off-Grid kit

Find Your Off Grid System

Local Ballarat Team ● 10 years in OFF GRID SOLAR

15kW off grid solar system

15kW Fully-Electric Family Off Grid Kit

Summary

15kW Off-Grid

15kW off grid solar systems

If you need a second opinion or your setup is more complex, Talk to Fred About your System first.

100Up Designed for Off the Grid Living.Solar, Inverter and Battery Sized Right

Designed for Full Occupancy

Built to Work through Worse Case Winters

Battery to Get Through Low Solar Days

Redundancy Where Reliability Demands It

Off-Grid Solar, Installed Across Regional Victoria

100up Off Grid Solar Projects - Designed & Installed

Modern Off-Grid Upgrade with Simpler, More Reliable Performance

Scotsburn Vineyard Powers Winery Operations with a 17kW Sigenergy Off-Grid System

Ballarat Home Installs 20kW Off-Grid System for Full Household Power and EV Charging

Energy Independence & Protection

15kW Off-Grid

Ready to Plan your15kW Off-Grid System?

Enquire about - 15kW Fully-Electric Family Off Grid Kit