Castlemaine Solar - Tech Solar Battery

Castlemaine Solar

Castlemaine Solar Solutions for Homes & Businesses

Accredited solar installers in Castlemaine with 8+ years experience. We design and install solar panels, batteries, EV chargers & off-grid systems — with honest advice, local support, and no hidden costs.

Our cleaner energy solutions

Installation of solar panels in Castlemaine

We specialise in custom-designed solar panel and battery storage solutions for homes and small businesses across the region.

Proud to be a NETCC Approved Seller, we deliver smart solar systems that help you lower your power bills, gain energy independence, and move toward a more sustainable future.

Solar Power in Castlemaine Made Simple for Homes & Businesses

We create tailored energy solutions that work together seamlessly: solar panels, batteries, inverters, EV chargers, air conditioning, hot water heat pumps, switchboard upgrades, and more.

We install your solar the same way we would on our own home, with the highest attention to detail and quality.

Our Location & Service Areas

We’re proudly based in Gisborne, right at 2/9 Pioneer Way, New Gisborne VIC 3438 — at the heart of the community we serve.

From our local base, we provide expert solar solutions for homes and businesses across Melbourne and the surrounding regions, including:

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Solar Panels

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Solar Rebates

solar power rebate victoria

Discover the most recent solar rebates and incentives available in Victoria and how to access them for solar panels, batteries and hot water systems.

Solar Energy Solutions castlemaine

Our 3-Step Solar Install Process

FAQ

Common Questions About Going Solar

What is solar energy?

Solar energy is power harnessed from the sun’s light and heat. It’s clean, renewable, and produces no harmful emissions. This makes it one of the most sustainable energy sources available, with uses ranging from powering homes and businesses to heating water and generating electricity for large-scale networks.

Is solar energy expensive?

Not anymore. Thanks to falling equipment prices, economies of scale, and government rebates, solar systems are now affordable for most households. With millions of installations already in place across Australia, solar has proven to be a smart investment that reduces energy bills and pays for itself over time.

How do solar panels work with your electric bill?

When your panels produce more power than you use, the excess is sent to the grid and you receive a credit through a feed-in tariff. With a battery, you can store extra energy for use at night or during peak hours, cutting your reliance on the grid even further. More details here.

How many solar panels will I need?

A typical Australian family of four will likely need between 14 to 30 solar panels for a system ranging from 5kW to 10kW. The average greater Melbourne household has a daily electricity usage of 13.65 kWh.

But it depends on your energy needs and system size. For example:

6.6 kW system → ~15 panels (440W each)
10.12 kW system → ~23 panels (440W each)
13.2 kW system → ~30 panels (440W each)

We offer free site assessments to determine exactly how many panels will fit your roof and suit your energy goals.

What size solar battery do I need?

The right battery size depends on your energy use, lifestyle, and whether you want full or partial backup power. Our team can assess your electricity bills, roof space, and usage patterns to recommend the ideal battery storage so you get the best value and savings.

How long before I see savings?

You will start to see savings on your electricity bill as soon as your solar power system is switched on. The savings are immediate as you begin to power your home with the free energy from the sun instead of expensive electricity from the grid. Solar panel systems typically pay for themselves within 5-6 years, and it’s not uncommon for them to do so in as little as four years. If well maintained, a good solar system can continue to deliver savings for 25 years.

How much do PV panels cost?

A fully installed 10.12 kW system (23 panels + 8 kW inverter) starts at approximately $2,990, after discounts and interest-free loans. The final cost varies depending on the roof type, home design, and electrical needs.

How much do batteries cost?

A common 10 kWh battery typically costs around $8,300 installed, but with government rebates, this price can drop significantly—making solar storage more affordable than ever.

Are there government rebates available?

Yes. In Victoria, homeowners may qualify for:

Solar Panel (PV) Rebate – up to $1,400 off the upfront cost.
Interest-Free Loan – up to $1,400 repayable over four years.
Federal STC Incentive – reduces the initial system price.
Cheaper Home Batteries Program – around 30% off eligible battery installations.

For more information on Victoria’s energy rebates, click here.

Our team handles all the paperwork and pre-approval requests, ensuring your system complies with all grid connection requirements.

How long does solar energy last?

Solar power systems are built for long-term use, with different components having various lifespans and warranties:

Panels: We offer a 25-year product warranty and a 30-year performance warranty.
Inverter: The typical warranty for an inverter is 10 years.
Solar Batteries: Most batteries come with a manufacturer’s warranty of 10 years.

Additionally, we provide a 5-year warranty on our installation and workmanship, backed by Tech Solar Battery.

Do you provide maintenance and cleaning services?

Yes, we provide maintenance and cleaning services.

For a standard residential system, a full electrical inspection every two years is a good practice. For larger commercial systems (over 40kW), an annual inspection is highly recommended to prevent issues from affecting your business operations.

The need for cleaning depends on your environment; panels in coastal, industrial, or high bird-traffic areas may need to be cleaned more often.

Testimonial

What Our Customers Say

    
 
 
       Posted on Google  
   
   Khoa Doz 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really happy with the whole experience from start to finish.

Ross was great during the sales process and took the time to explain everything properly without any pressure. Kate was also fantastic with the admin side of things — always helpful, responsive and kept everything organised.

Big shout out to Hasan and the boys for the installation. They did an awesome job, were professional, friendly and clearly knew what they were doing. The panels and battery were installed neatly and everything was explained to me once the job was completed.

It’s not often you come across a company where everyone you deal with is genuinely helpful and easy to deal with. Hassan and the team definitely made the whole process easy.

Would highly recommend these guys to anyone looking at getting solar and a battery. Great work from an awesome team! ⭐⭐⭐⭐⭐
  
 
      Posted on Google  
   
   Jay Town 
 
 
 
 Trustindex verifies that the original source of the review is Google. I thoroughly recommend Hasan and the team (I cannot praise them highly enough).  After getting about 4 different quotes from other providers, I decided to go with Tech Solar Battery who not only beat every other quote by a huge margin, they also allowed me to place panels on my house and my shed which other providers said was too hard. The whole process, from my initial call seeking a quote, to everything installed and ready to be switched on took less than 10 days. I even had an EV charger installed at the last minute.
Follow up note: I just had my inspection from the Government Safety guy, and he said he was really impressed with the quality of work the installers did.
  
 
      Posted on Google  
   
   Ian Hansford 
 
 
 
 Trustindex verifies that the original source of the review is Google. Hasan commissioned my Sigenergy Ev charger. He was on time, polite and informative. He obviously regards customer satisfaction very highly and was a pleasure to deal with.
  
 
      Posted on Google  
   
   Welman Tan 
 
 
 
 Trustindex verifies that the original source of the review is Google. === Update: 2026/08/14 ====
4-Star

They called me and explained that Hasan had been unwell during the week when I didn’t receive any communication or follow-up. I’m updating my rating up to 4 stars and giving the benefit of the doubt. Hoping customer care gets better.

=== Update: 2026/07/31: Customer Care Experience ===

2-Star

I’m updating my review because the post-installation customer care has been disappointing, and it has brought my rating down to 2 stars.

I raised an installation-related issue several times directly with Hasan, but my messages were ignored. I was told we would chat the following Monday, yet a week passed without any contact. That was enough to make me feel that once the installation was complete, customer support was no longer a priority, and customer is not valued. Customer care, installation warranty, virtually non-existent.

The issue involved the LED side strip lights on a newly installed Sigenergy battery stack, which were not functioning correctly. Because I’m quite familiar with this technology, I did my own research and eventually worked directly with Sigenergy to have the system re-initialized. That resolved the problem. Even Sigenergy initially did not know the cause or the solution. In the end, the problem was traced back to the installation not being initialized correctly, confirming that it was an installation-related issue.

I entrusted this company with a significant investment, partly because I believed they would provide better after-sales support than many of their competitors. Unfortunately, my first experience seeking help for an installation-related problem did not justify the premium price I paid.

If this was the experience I had with a relatively minor issue, I can only imagine how much worse it could be if a major problem ever arose.

===== Original Review ========
5-star

These are an exceptionally competent and efficient team led by Hasan. I couldn’t be happier with the entire process and the quality of the installation.

As someone who is technically minded and has very high standards, I can confidently say Hasan and his team are top-notch.

From the very beginning — system design through to quoting — Ross did an excellent job. He patiently accommodated my specific technical requirements and was genuinely focused on achieving the best outcome for customer satisfaction. For example, he persistently worked to source me premium-tier panels beyond what was originally quoted, which I was extremely happy with.

Hasan has deep technical expertise, which was obvious from the way he handled every technical questions I threw at him. His workmanship is excellent across the board — from the 3-phase switchboard upgrades to the cabling and integration between the switchboards, gateway, inverter, and battery stack. He went far and beyond upgrading my switchboard than what was originally quoted — to impress me. He was also very thoughtful in concealing cables wherever possible, resulting in a much cleaner installation. It’s rare to find someone who takes such pride in their work.

The same goes for the rest of the team who installed the solar panels. They were professional, careful, and respectful throughout the installation process.

Kudos to the A-team. Great communications and on-time. I wouldn’t hesitate to work with them again or recommend them to others.
  
 
      Posted on Google  
   
   robert lott 
 
 
 
 Trustindex verifies that the original source of the review is Google. Quick and clean installation.
Highly recommended.
  
 
      Posted on Google  
   
   Lynne 
 
 
 
 Trustindex verifies that the original source of the review is Google. Hazan did a great job in supplying and installing solar panels and battery, the inspector commented on the excellence of the installation we couldn't be happier.
  
 
      Posted on Google  
   
   Helen Evans 
 
 
 
 Trustindex verifies that the original source of the review is Google. I’m very happy with my new battery and solar installed by Hasan and the team. It was all completed quickly and efficiently and Hasan was incredibly helpful and accommodating throughout the process. Would definitely recommend Tech Solar Battery.
  
 
      Posted on Google  
   
   Darren & Donna 
 
 
 
 Trustindex verifies that the original source of the review is Google. We just had a 48kWh Sigenergy battery system installed by Tech Solar Battery Gisborne.
We can’t speak highly enough about Hasan and his crew, from the initial contact everything just ran beautifully, communication was excellent, the whole process was very quick & efficient.
The install was faultless, the crew were very professional, leaving everything spotless.
The after install customer-care has been brilliant, Hasan has guided us through the whole process, answering all of our questions (and there has been a lot) even after hours.
A huge thank you Hasan and the whole team at Tech Solar Battery Gisborne!
  
 
      Posted on Google  
   
   Chris 
 
 
 
 Trustindex verifies that the original source of the review is Google. Hasan was very professional and great at communicating, he came out same day for a quote and answered many questions along the way.
Our roof shape is very steep but wanst a problem for his crew who where all friendly and worked late on a Friday to complete the job.
Would recommend to anyone.
  
 
      Posted on Google  
   
   Ben Petrucci 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent company, cannot recommend enough! Hasan and his team were punctual, reliable and delivered high quality work in an extremely short timeframe.  Awesome work.

Your Solar Quotation Included

At Tech Solar Battery, we believe in getting it right from the start. That’s why we follow a clear, step-by-step process to ensure your solar panels installation is efficient, tailored, and hassle-free.