Huglo team
January 11, 2024

Maximise Your Solar Investment: Retrofit Battery Installation with Huglo Solar

Maximise Your Solar Investment: Retrofit Battery Installation with Huglo Solar

In the era of ever-increasing electricity prices, homeowners with solar systems are increasingly looking to enhance their energy efficiency and savings. The Sustainable Household Scheme in the ACT offers an excellent opportunity for eligible households to upgrade their systems with retrofit solar batteries. This guide will walk you through the process and explain why Huglo Solar is your ideal partner for this upgrade.

Who is Eligible?

The ACT Government’s Sustainable Household Scheme (SHS) provides 10-year interest free loans of up to $15,000 for eligible participants. You are eligible if you own the property where the installation will occur and it is located within Australian Capital Territory (ACT). The Unimproved Value (UV) of your property as of 2022 (or later) must be $750,000 or less for most products, including retrofit batteries, and $450,000 or less for rooftop solar systems. You can look up your Unimproved Value of your property here.

This means, a $10,000 loan will result in repayments of $1,000 each year for 10 years. You can also borrow for a shorter period if that is your preference. The loan can be used to cover the battery installation and any switchboard works required to install the battery.

Why this is great value?

The Sustainable Household Scheme provides a limited opportunity to add a retrofit battery to your existing solar system with no upfront cost and interest free finance. This means the economic payback is improved rather than paying upfront or using commercial finance – making the purchase decision more logical from an economic perspective.

What Products suit a Retrofit battery.

Not every battery is capable of being installed to an existing solar system. You will likely need an AC coupled battery, such as a Tesla Powerwall 2, sonnenBattarie Evo or Sungrow SBR series battery. These batteries will charge from the excess AC power genrated from your solar system rather than sending it back to the grid. This can then be used to power your home when there is not enough solar generation to power your home. The econmic value to you is rather than receiving the solar feed-in-tarrif (6-10 cents per kWh), you can store the energy and use this instead of grid power (25-35 cents per kWh).

Huglo Solar think the Sungrow Hybrid inverter and battery combination is the best value alternative for consumers for the following reasons:

  • The Hybrid Inverter can be AC coupled to charge your Sungrow battery
  • If you have three phase power, a three phase Hybrid inverter can provide three phase back up in the event of a blackout
  • The Sungrow battery is modular so you can expand the battery in the future very easily and relatively cheaply
  • The minimum size battery is 6.4kWh (2 modules) for a single-phase property and 9.6kWh (3 modules) for three phase battery
  • The potential battery capacity is huge, with single phase system able to connect 19.2kWh of modules per stack and up to fours stacks. For three phase connections., its 25.6kWh per stack and again, up to four stacks.
  • Standard warranty 10 years or 13.4 Mwh per module (equivalent to one cycle per day for 11.5 years)

The Retrofit Battery Installation Process:

Installing a Retrofit battery, like the Sungrow SBR series along with the SH5.0RS Hybrid inverter, involves several steps. Firstly, assess if this system is right for your needs. Huglo Solar can help you confirm your eligibility, understand the financial benefits and technical details of the battery. You should see that you are exporting a decent amount of energy from your existing solar system to make sure you can fill the battery consistently - especially in winter.

Contact Huglo to enquire if this product suits your needs here.

Huglo Solar will then provide comprehensive quotes that provide alternatives for your consideration. Together we can help you determine the optimal solution, Huglo Solar will take care of the finance referral with Brighte (the counterparty who administers the loan on behalf of the ACT Government), grid approval and then complete the installation.

Why Choose Huglo for Your Retrofit Battery Installation?

Choosing Huglo Solar for your retrofit battery installation comes with numerous advantages. Our expertise in solar technology and battery systems guarantees that you receive the best advice and products tailored to your needs. We are local, based in Mitchell, and we commit to high-quality service and offer the latest in solar technology. Our team provides personalised support, ensuring that your transition to a more efficient solar system is smooth and beneficial.


Retrofitting a battery to your existing solar system is a smart investment that increases energy efficiency and savings. Through the Sustainable Household Scheme, this upgrade is made more accessible and affordable. Huglo Solar is dedicated to helping you through this process, ensuring that you get the most out of your solar investment.

Ready to enhance your solar system with a retrofit battery? Contact Huglo Solar today for a consultation or visit the Sustainable Household Scheme website for more information and to assess your eligibility.

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