From Gas to All-Electric: How One Household Cut Winter Heating Costs by 66%

At Specialized Solar & Electrical, we often talk about electrification as more than just installing solar panels. When designed properly, a modern all-electric home can improve comfort, reduce long-term running costs, and create a more resilient future.

This recent household upgrade is a strong example of what’s possible when solar, efficient heating and cooling, smart appliances, and EV charging are designed to work together.

The Goal: Reduce Running Costs and Eliminate Gas

Like many Australian households, this homeowner was dealing with rising energy costs, particularly during winter when ducted gas heating was heavily relied upon.

The objective was clear:

  • Eliminate gas usage entirely
  • Reduce heating and cooling costs
  • Improve year-round comfort
  • Support EV charging at home
  • Future-proof the property with efficient electric appliances

Rather than making one isolated upgrade, the home underwent a complete electrification transformation.

The System Upgrade

The household installed:

  • 6.56kW solar system
  • Two high-efficiency split systems for whole-home heating and cooling
  • Heat-pump hot water system
  • Induction cooktop
  • EV charger

The result was a fully electric home designed to run more efficiently throughout every season.

The Results

The numbers delivered impressive outcomes across both summer and winter.

66% Lower Winter Heating Costs

Before the upgrade, the home relied on ducted gas heating, with a typical winter gas bill reaching $209.59 per month.

After switching to high-efficiency split systems powered by solar, winter heating costs dropped dramatically.

Even after adjusting for EV charging usage, heating-related electricity costs reduced to approximately $70.21 per month.

That represents a:

66% reduction in winter heating costs

54% Lower Summer Electricity Costs

The household also saw significant savings during summer.

Before solar installation, the home’s electricity bill sat at $96.44 per month.

Following the upgrade, summer electricity costs dropped to just $44.54 per month — even while charging an EV at home.

That’s a:

54% reduction in summer electricity costs

52% Lower Overall Winter Energy Spend

When comparing the full winter month energy spend, including all-electric living, EV charging, and supply charges, the household still achieved substantial savings.

Winter energy costs reduced from:

  • $209.59 per month (gas heating setup)
    to
  • $100.30 per month (fully electric home with EV charging included)

This represents a:

52% reduction in total winter energy costs

Gas Usage Eliminated Entirely

One of the biggest milestones was the complete removal of gas from the home.

By transitioning heating, hot water, and cooking to efficient electric alternatives, the household achieved:

100% gas usage elimination

This not only removed ongoing gas bills and fixed charges but also simplified the home’s energy system into one efficient, solar-powered setup.

Why Electrification Works

This project highlights an important shift happening across Australian homes.

Electrification is no longer just about sustainability. It’s about:

  • Lower running costs
  • Improved comfort
  • Greater energy independence
  • Smarter appliance efficiency
  • Better integration with solar and batteries
  • Future readiness for EVs and changing energy markets

When systems are designed holistically, households can dramatically reduce reliance on expensive fossil fuels while improving day-to-day living.

Transparency Matters

One important detail in this case study is that post-install electricity bills included EV charging, which accounted for approximately 30% of electricity imported from the grid.

Even with EV charging included, the household still achieved significant reductions across both summer and winter energy costs.

This demonstrates the real-world value of pairing solar with efficient electrification upgrades.

Comfort Up. Costs Down. Future-Proofed.

By replacing ducted gas heating with efficient split systems and integrating solar, heat-pump hot water, induction cooking, and EV charging, this home has successfully transitioned into a lower-cost, fully electric future.

The outcome is simple:

  • Lower bills
  • Better comfort
  • Reduced reliance on gas
  • Cleaner energy usage
  • A future-ready home built for long-term savings

Thinking About Electrifying Your Home?

At Specialized Solar & Electrical, we help households design tailored energy systems that align with the way they live today — and where energy is heading tomorrow.

Whether you are considering solar, split-system heating and cooling, batteries, EV charging, or full home electrification, our team can help you build a smarter energy roadmap.

📞 03 9117 6185
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✉️ info@specsolar.com.au