Battery Expansion Notice | iStore / Huawei Battery Systems

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Expand my battery

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iStore Important notice for iStore / Huawei battery customers Battery expansions available until 31 December 2026 We’re getting in touch with an important update for customers with iStore or Huawei battery systems. ⚠️ Expansion modules will only be available until 31 December 2026 (or while stocks last). From 1 January 2027, adding additional battery units to existing systems will no longer be possible. Expand my battery Stock is expected to become more limited closer to the deadline, so we recommend getting in early

Solar Victoria Rebate Programs

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CommBank Green Loan
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Rebates that support Victorians to take control of their energy bills, tackle climate change and build a cleaner, renewable future* *Rebates are for Victoria state only
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$1,400 Solar panel (PV) rebate Solar panel rebates of up to $1,400 plus the option of an additional $1,400 interest-free loan are available for existing homes and homes under construction. Check out out Melbourne Solar Specials here About the rebate The solar homes program provides rebates of up to $1,400 towards the installation of solar panel (PV) systems. These rebates are offered to Victorians with existing homes, homes under construction, and rental properties. Eligible customers who have previously received a rebate and have moved house can also apply. To further reduce installation

300L to 300L Solar saver changeover - South West

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Australia's best solar hot water! 300L to 300L Solar Changeover. Take advantage of this limited time offer while you can! 300 litre solar to solar changeover from $3,190* (single panel) or $3,390 (twin panel). ENQUIRE NOW
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Replace your with a 300L solar to solar change-over. Fully installed and commissioned by experts and backed by a comprehensive warranty. This is system has been designed by Australian plumbers and is fully watermarked for Australian conditions. Value, quality and lots of hot water.

Upgrade Offer - South West

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Solar Hot Water Solargain
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Roof Mount System Sale Replace your inefficient, ageing gas or electric hot water system with an efficient solar hot water systems and reduce your homes energy costs by over 60%* Starting from $3,790 - fully installed
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Designed for superior performance & durability in Australian conditions by Australian hot water experts, Solargain's flat panel collectors are some of the best hot water systems on the market. Gain access to generous government incentives and rebates Able to withstand the harsh Australian climate Black chrome selective coated copper collectors 4m2 collector surface area Quick changeover from existing electric and gas systems Support from Solargain's nationwide sales and service networks Family-sized solar hot water system Warranty Information 5-year tank and collector warranty 1-year

iStore Combo Offer

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Dual iStore Transperant
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Combine an iStore with a solar power system and save $200 Interested? Enquire here!
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As we shift toward the era of energy independence, with battery storage being the choice for clean power, the iStore offers a cost-effective storage solution as an alternative and reliable storage device. When you purchase an iStore with any 5kW solar PV system, Solargain will give you a $200 discount. A 5kW solar power system can save you over 70% on your energy bills whilst your iStore could save you up to $1,000 per year!* Relax knowing you are purchasing from one of Australia’s largest, most experienced and leading names in solar. Get in quick. This amazing deal is available for a limited

Hot Water System Repairs and Replacements

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300L Solar Hot Water
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We'll help you get back in hot water! If your hot water system has failed contact us today! We offer rapid repairs and replacements on hot water systems, with no call-out fee.
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At Solargain we have a long history of working with hot water, we actually started as a plumbing and hot water servicing company! Though we have grown much since our foundation, hot water is still a core part of our business and company skillset. We have a real speciality for hot water system repair, installation, service, and replacement, whether they be solar, electric or gas systems. There's nothing worse than coming home after a long day to find that that hot shower you'd been dreaming of is out of reach and that's why we're here to help. With local plumbers available all around Australia

Get a FREE Solar Assessment!

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Free Site Assessment
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Get a Free Assessment for your Solar PV system to see if it's time to upgrade! Keen for the best in solar, and not sure your current system's keeping up with your present energy needs? Get in touch today for a FREE system assessment.
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FREE Solar Assessment Upgrading your Solar PV System So you've had your solar PV system for a few years now. It's been doing great right? After all, it's hard to top the savings solar gives you as it slashes through your power bills. But it could be doing better. After all, everyone's energy needs change and grow over time; new appliances, new usage patterns, even new family members! So, the 4 kW system you installed back when that was the bee's knees in solar might not be keeping up as well as it used to. That's where a solar system assessment comes in. Our team are more than happy to take a

Banyule Clean Energy

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Banule Energy Group logo and solar panels
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The Banyule Solargain Partnership Program Solargain and Banyule Clean Energy Group are excited to work together to make renewable energy more accessible.
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The Banyule Clean Energy Group is a non-profit community group which helps members of their community access financially effective renewable energy and energy efficient solutions. By providing project management and ongoing support, they assist Banyule city residents, businesses and organisations in making the right decisions for them in regards to renewable energy, decisions that help both the client and the environment. Since 2019, the Banyule Clean Energy Group has used Solargain as their preferred rooftop solar provider, and we here at Solargain have been proud to work alongside them

300L to 300L System changeover

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Upgrade your solar hot water system and start saving! 300L Solar to Solar twin panel changeover from $3,790*! or 200L Solar to Solar twin panel changeover from $3,690*! Hurry, this is a limited time offer. ENQUIRE NOW
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Make the most of Australia's most abundant resource by upgrading to a Solargain solar hot water system. Full system changeover, with 200L or 300L options available.

iStore - Air to Energy Heat Pump

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iStore Hot Water Heat Pump Solar Bundle
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Bundle & SAVE! Get a big discount when you combine your solar power with an iStore hot water heat pump Interested? Inquire here!
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Bundle your solar with the iStore heat pump and receive a BIG discount! The iStore heat pump is an award-winning hot water unit that can work with your solar to cut down your energy bills even more. A 5kW solar power system can save you over 70% on your energy bills whilst your iStore heat pumpcould save you up to $1,000 per year!* Relax knowing you are purchasing from one of Australia’s largest, most experienced and leading names in solar. Get in quick. This amazing deal is available for a limited time only. Receive an obligation-free site assessment with NO deposit required. Offer available

Customer Referral Program

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Prezzee Reward Referral Program
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Refer a friend and receive a $100 eGift Card! If your friend installs a system through Solargain, for a limited time, we'll reward you with a $100 eGift Card to say Thank You. Enquire NOW
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What can I get with a Prezzee eGift Card? Your Prezzee electronic gift card can be used on all the big brands with 200+ top retailers listed on prezzee.com.au How to refer a friend Send your friend a link to this page. Ask them to fill out the form at the bottom of the page including your name in the enquiry When their installation is complete, rebates and invoice have been paid, you'll receive your Prezzee eGift Card!* Please note we are experiencing longer processing times due to the Federal Government rebates Why solar? Save money on your energy bills. Increase the value of your property

Replace your Existing Hot Water System and Save

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The very best in solar hot water! 300L to 300L Solar Changeover. Hurry! this is a limited time offer. 300 litre solar to solar changeover from $3,990* (single panel) or from $4,290* (twin panel). ENQUIRE NOW
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Replace your old system with a 300L solar to solar change-over. Fully installed and commissioned by experts and backed by a comprehensive warranty. This is system has been designed by Australian plumbers and is fully watermarked for Australian conditions. Value, quality and lots of hot water.

Upgrade Offer

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Solar Hot Water - Solargain
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Upgrade your hot water Replace your old expensive to run gas or electric hot water system with an efficient solar hot water systems and slash energy costs by over 60%* Starting from $4,190 - fully installed
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Designed for longevity & superior performance, Solargain's flat panel collectors have been designed by Australians, for Australian conditions. Attracts generous government incentives Designed to withstand harsh Australian conditions High performance all copper collectors with black chrome selective coating 4m2 collector surface area Easy changeover from existing gas and electric systems Nationwide sales and service networks Family-sized solar hot water system Warranty Information 5-year tank and collector warranty 1-year electrical warranty Enter your details and we'll get right back to you