100up Off Grid Systems

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Off Grid solar, Design, Installations and Ownership.

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

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Off-Grid Solar System Problems: Faults, Diagnostics & Maintenance

Off-grid solar installation with metal shed, Hyundai backup generator, and solar panel arrays in rural setting

General

Generator-Less Off-Grid Solar: What It Actually Means

Generator-less doesn’t mean there’s no generator. It means the off-grid solar and battery system is designed so normal life doesn’t depend on one.

Large metal shed with complete rooftop solar panel array and construction equipment on rural property surrounded by trees

General

Off-Grid Solar System Sizing Calculator

100up makes Off-Grid Solar Sizing Simple Use Instant and Simple Off-Grid Solar Sizing Calculator – its based on Aussie averages and over 10 years of Off Grid Solar Installation Experience. It’s the perfect starting point to help point you in the right direction. How to Use Our Off-Grid Solar C...

Two white SIGenergy battery units installed in unfinished building with electrical connections and safety warning labels

General, Sizes and Prices

Off-Grid Solar: Our System Design Principles

We design off-grid solar systems around real household demand, Ballarat winter conditions, redundancy, and long-term property value, not just best-case weather.

Bar chart showing solar battery installation counts by Australian state and territory to end of August 2025

General

Solar batteries are taking off in Australia

If you’ve been thinking about a home battery, you’re not alone. The Clean Energy Regulator (CER) just reported another big jump in installs — and there’s a clear shift to larger, more capable systems that move the needle on bills and backup. The quick take Context: Batteries became SRES-eligible on ...

Sigenergy Gateway switchboard mounted on timber frame wall with two battery units below during off-grid solar installation

Off-Grid Components, Technology

Sigenergy Sigen Gateway = Switchboard (Certified)

The Sigenergy Sigen Gateway is certified to EN IEC 61439-2 (with -1) as a power switchgear & controlgear assembly (switchboard). AU variants (e.g. Home TP AU, C60-2 AU) are listed with Form 1 and IP54, with models suitable up to ~100 A. For Australia (off-grid solar energy & hybrids): Ideal ...

Aerial view of extensive ground-mounted solar panel array with multiple rows of panels on cleared rural land

General, Sizes and Prices, Solar and Weather

Big Mistakes in Off-Grid Solar Design: Don’t Turn a Dream Property Into a Power Nightmare

People from the cities move onto big properties with off-grid solar and often prioritise the house, fittings, shed, and garden—leaving the off-grid solar system to last. They don’t realise how quickly a dream home turns into a nightmare when the power runs out. Generators in winter? Painful in pract...

LONGi Hi-MO X10 Light Design solar panels displayed against space background with flowing energy streams

Technology

New High-Efficiency Panels: A Boost for Off-Grid Systems

24.5% to 25% solar module efficiency

Aerial view of metal shed with solar panels covering most of the roof, located on cleared rural land with construction equipment

Sizes and Prices

Australia’s 10kW Off-Grid Solar: Pricing Insights

The price for 10kW off-grid solar systems typically falls between $25,000 and $35,000.

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

Sizes and Prices

10kW off grid solar system cost

10kW off-grid solar system or stand-alone solar system can cost from $25,000 to $35,000 depending on the type of off-grid solar equipment and the complexity of the installation site. Most domestic installations always fit into this price range. In some cases, the cost of a 10kW solar power system ca...

Infographic showing CEC accreditation requirements, approved products list, and solar retailer standards

General

CEC Accreditation, Approved Products, and Solar Retailer Approval: What They Actually Mean

Let’s be clear from the start:When you see terms like CEC Accredited Installer, CEC Approved Product, or NET Approved Seller (previously “CEC Approved Retailer”), they may sound impressive — but none of them are indicators of quality. These labels are about basic legal compliance, not performance, n...

Large ground-mounted solar panel array with 100up service vehicle on rural Victorian property with trees in background

General, Location, Solar and Weather

Off-Grid Solar Systems Ballarat

Ballarat presents a challenge for off-grid solar power supply, especially in winter when avoiding generator use is desired. While it’s tough, it’s achievable with the right approach.

Black lithium battery modules with red DC cables and warning signs including restricted access and toxic fumes notices

General

Do I Need to Upgrade Wiring When Adding a Battery to My Off-Grid Solar System?

With battery rebates and storage options improving, many off-grid homeowners in Australia are looking to add batteries to their solar systems. But one big question comes up often: If I retrofit a battery into my existing off-grid solar system, do I need to upgrade all the solar wiring to today’s sta...

Comparison chart of Solar Victoria rebate efficiency versus other Australian solar incentive programs

General

Solar Program Efficiency: How Solar Victoria Compares Globally

Looking at these numbers, it’s no wonder the U.S. had to set up a whole agency just to chase government waste. If this trend continues, Australia might need one too. This chart compares how funds are allocated between public rebates and operating costs across different solar and energy programs: Und...

World map infographic highlighting global residential solar and battery storage incentive programs

General

Global Residential Solar and Battery Incentives Including Off-Grid Systems

Across the world, governments are encouraging households to install solar panels, battery storage, and in some cases, go fully off-grid. Here’s a detailed look at current rebates, incentives, and programs you’ll find around the world in 2025. Australia Australia leads with strong national and ...

Solar panels mounted on house roof extension providing increased energy generation for off grid system

"Fred was very knowledgeable. The new technology is amazing, glad I invested and upgraded my old system."

Sandi Waterhouse

5kW Off Grid System Performance Upgrade

Large off-grid solar battery bank with inverters installed for a farm or business 16 to 32kW system kit

"Off Grid installation. He and his team did an amazing job. Very knowledgeable man with a wealth of experience. I would definitely recommend him."

Scott Chivers

Family Home & EV Powered By 20kW Off Grid Solar Installation Ballarat Victoria

Off grid solar panels mounted on carport roof powering electric vehicle charger with battery system installed beside parked car

"Modern system that could be easily upgraded. Within a week had the system installed and running flawlessly. Two system upgrades done quickly integrating seamlessly."

Simon Jolly

Off Grid EV Charging System That Scales With Demand

10+ Years - 100% Off Grid In Victoria