Scheme to impact more than 220,000 eligible Australian Residents


Three private industry heavyweights have joined forces to today announce Australia’s largest independent solar battery scheme which will impact more than 220,000 eligible residents within Norwest and the Hills District in New South Wales.

This scheme called ‘Smart Home Battery Scheme’ has been spearheaded by Australia’s largest solar and battery installer, Natural Solar, high-end property developer Mulpha, and Australian peer-to-peer lender RateSetter.

Immediately available for those who live or work in Norwest and for eligible Hills District residents, homeowners will be able to save up to $4,000 on the purchase and installation of home solar systems and battery storage solutions. This will reduce prices from $21,490 to just $16,990 for a 5kW solar and 10kWh battery system inclusive of a $1,000 discount for residents who sign up to sonnenflat. sonnenflat customers who purchase through the scheme will also be eligible to access exclusive monthly energy plans. Residents will also be able to retrofit their battery to an existing solar solution if required.

On top of the purchaser savings, residents who are eligible will also be able to take advantage of RateSetter’s interest offer of 3.99%pa/comparison from 6.58%pa* for a period of up to 60 months through RateSetter.

“The introduction of the Smart Home Battery Scheme is truly a game changer for residents living and working within Sydney’s Norwest and Hills District,” says Chris Williams, CEO & Founder of Natural Solar. “Natural Solar have joined forces with some of the largest and most respected companies in their fields to encourage interest and uptake in renewable energy equating to huge savings for Australian families.”

Tim Spencer, Executive General Manager of Mulpha Developments commented: “Mulpha is fully committed to the growth of Norwest, already one of the premium mixed use and business districts in the Southern Hemisphere and the epicenter of the Hills District. We have seen a huge demand for solar and battery power through our Essentia townhome development, and are excited to be able to offer this to a large number of Australian homes within the area.”

Beyond initial savings on solar and battery systems for residents, as well as a reduction in household energy bills of up to $2,200 per annum, the Smart Home Battery Scheme is expected to reduce carbon emissions by 6,750 kg CO2 per system annually.

“Already within the Norwest and Hills District catchment area there is a higher than average volume of homes that have solar panels installed and a strong interest from these residents in renewable energy. We anticipate a high level of uptake of the Smart Home Battery Scheme and firmly believe this will cement the position of Norwest and the Hills District as one of Australia’s technology hubs powered by solar and battery,” concluded Mr Williams.

Media Information:
Soraya Calavassy / Neon Black / 0434 612 018 / [email protected]


  • Australians can visit to confirm their eligibility for the scheme
  • Customers will need to enter their details and submit an enquiry
  • Natural Solar will determine eligibility and confirm product requirements
  • A full 10% deposit will be required at the time of booking confirmation
  • This will reduce prices from $21,490 to just $16,990 for 5kWp solar and 10kWh battery inclusive of a $1,000 discount
    for residents who sign up to sonnenflat.
  • sonnenflat customers who purchase through the scheme will also be eligible to access exclusive monthly energy plans.
  • $1,000 sonnenflat cashback is only available to customers who are eligible and sign up for sonnenflat within the required timeframe. A voucher will be provided from sonnen which will need to be provided to Natural Solar.
  • On top of the purchaser savings residents who are eligible will also be able to take advantage of RateSetter’s interest offer of 3.99%pa/comparison from 6.58%pa* for a period of up to 60 months.
  • Residents will also be able to retrofit their battery to an existing solar solution.

Please refer to the Natural Solar website for full list of Terms & Conditions and eligibility criteria and requirements.

Frequently asked questions

Yes – if you reside in the Hills District of Sydney or are employed in the Norwest District of Sydney.

Call or email our friendly team at Natural Solar on 1300 060 928 or alternatively jump on our website at to find out more information.

Natural Solar is the leading and largest Australian installer of battery power, and a true authority on Australia’s renewable energy industry. Founded in 2012 by Chris Williams and having installed some of the most high profile solar and battery installations worldwide, Natural Solar has a reputation and expertise in developing bespoke energy storage solutions to suit the residential, commercial and development markets. The growth of Natural Solar as both a company and industry leader has been publicly recognised, with Natural Solar awarded the Bridgepoint Award for Australia’s Fastest Growing company (2018) and achieving #15 on the AFR Fast 100 for two consecutive years (2017 & 2018).

Mulpha is one of Australia’s, most experienced real estate and hospitality investors with highly specialised operational management and development capability. The group also has an extensive portfolio of real estate, property development, hospitality, education, retirement, private equity and debt assets and invests in some of the fastest growing and most vibrant economies, in Australia, New Zealand, the UK and Malaysia.

Natural Solar are proud to be partnering with Mulpha in the new Essentia development which will become Australia’s first Smart City.

sonnen is a German company that produces home energy storage systems for private households and small businesses. sonnen is considered the market leader in Germany and additional international markets.

RateSetter is Australia’s leading marketplace, connecting investors and borrowers via a marketplace platform offering investors access to strong, stable returns and borrowers with simple, competitive loans. Since 2014 RateSetter has originated over $500m consumer loans and growing rapidly, whilst maintaining an unrivalled credit performance

That’s great! We can install a state-of-the art sonnen battery to work with your existing solar system. Adding a solar battery to your existing solar is covered as part of the scheme.

We can assess your current solar installation and add additional solar PV where possible to give you even better energy savings and allow your property to be eligible for sonnenflat

sonnenflat is a unique energy package for sonnen battery owners which allows customers to receive a guaranteed annual allowance of energy for a fixed, low monthly administration fee. Members of the sonnenflat community share surplus power with one another which allows sonnen to basically pay your electricity bills for you.

With sonnenFlat, you get free electricity regardless of the source (solar, battery or grid), as long as you don’t use more than the prescribed amount of electricity per year.

For example, if there’s lots of power being exported into the grid from solar systems around the area, grid operators (not retailers) can at the click of a button, push some of that excess power into customers partaking in sonnenFlat whose batteries have spare capacity. In a nutshell, sonnen is able to provide free electricity by leveraging the sonnenFlat network.

Joining sonnenFlat is like having a mobile phone plan and allows you to control your energy bills against rising energy prices.

Please refer to the sonnenFlat terms and conditions for eligibility and to confirm if your system complies with the sonnenFlat minimum requirements.

Our good friends at sonnen have been very kind to custom make a sonnenflat package specifically for the Hills Smart Home Battery Scheme of 5kW of Solar PV and 7.5kWh of sonnen Battery with a $42+gst per month admin fee, including 6000kWh per year of electricity. Our packages are also at the below monthly rates, which are lower than the standard sonnenflat rates. Please refer to sonnenflat t&c’s for more information and eligibility. A snapshot of these packages is outlined below:

sonnenflat PACKAGES
Minimum solar (kW)
Minimum sonnen Batterie size7.51012.515
Monthly membership fee$42 +GST$42+GST$52+GST$62+GST
Yearly energy allowance incl. solar, battery and grid usage (kWh)6,0007,50010,00012,500

sonnenflat will replace your existing electricity retailer. Your new electricity bill under sonnenflat will be from sonnen !

No you do not have to join sonnenflat to be eligible for the Hills Smart Home Battery Scheme.

This offer of 3.99%pa/comparison from 6.58%pa* is exclusive to Natural Solar. Our friendly sales team will put you in touch with our finance partner Ratsetter who will determine your eligibility and process your finance application. Please refer to terms and conditions of finance offering.

60 Months is the maximum term offered at 3.99%pa/comparison from 6.58%pa* interest rate. A 10% deposit is required on acceptance of a quotation. The remaining 90% of the balance can be financed under the 3.99% rate for a period of up to 60 months.

To welcome you to the sonnenflat community, sonnen are offering participating members $1000 “cashback” for a limited time. Ask our team about how to access the sonnenflat $1,000 cashback by joining sonnenflat. It is important to note that no discount can be applied to your sales contract until a verified sonnenflat registration voucher is provided to Natural Solar. Terms and conditions apply to this offer which can be found on the sonnenflat website.

Yes. Please note additional travel costs may apply for out of metro locations which will be quoted at the time of enquiry.

The STC (small-scale technology certificates) program is part of Australia’s Renewable Energy Target. Under this initiative, every megawatt hour of qualifying energy generation is eligible for renewable energy certificates (RECs).

These certificates come in two types: large and small. Small-scale technology certificates (STCs) are the ones that apply to residential solar installations.

You might think of an STC as a discount voucher on the cost of installing your solar system. Depending on how big your system is, and where you live, the number of STCs you are eligible for varies and therefore the amount of your rebate varies.

Yes, but it will require a custom-built cabinet to protect it from the elements. This will be discussed with you and our first-rate design team. The outdoor cabinet is an additional cost and will be quoted if required.

Our energy specialists will assist you in discussing any upgrades to your existing system (including removal and installation of a new system) to ensure you have the most state-of-the-art system available. In some cases, it is difficult to add panels to your existing system due to changes in regulatory requirements which have occurred since the time of your original installation, this will be advised by our team at the point of sale.

To be eligible for the scheme, applicants will need to be owner-occupiers of a house with an annual household income of up to $180,000. Loans of up to $9000 per battery system and up to $14,000 per solar-battery system will be available. The NSW Scheme offers 0% interest for solar only up to $9000 and 0% interest for solar & battery up to $14,000.  The scheme is not currently open and is expected to launch later in 2019 with first installations to occur over summer.

No. The Natural Solar Smart Home Battery Scheme is an independent scheme combing several heavyweights in the industry to provide an unprecedented offering, it is not part of the NSW empowering homes scheme at this stage.

The scheme is now officially open. Updates will be provided on our website advising of any changes to scheme timeframes.

Our sales team will advise of additional costs at the point of sale. These may include things such as difficult roof access (i.e. double storey), multiple splits of your solar, outdoor cabinets and other items. While we always try to include all costs upfront, some meter board work may be required in order to meet current electrical regulations. In the event of meter board upgrades, this will be quoted as a separate item and may occur after the sales contract.

CEC approved Solar retailers are companies who have shown their commitment to responsible sales and marketing activities, and industry best practice for the sale of solar systems.

It is a voluntary program which is authorised by the ACCC and gives consumers confidence that these retailers will supply quality products, comply with consumer protection laws and back the operation of their systems well into the future.

Natural Solar is proud to be an approved CEC Solar Retailer.

Comparison rate based on an unsecured green loan of $30,000 over 5 years for a borrower with an excellent credit history. WARNING : This comparison rate is true only for the examples given and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate. Credit subject to lender approval, fees and charges may apply. Finance offer limited to first 10,000 customers.

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These costs are based on the SA Power network in Adelaide but prices may vary depending on your circumstances. This comparison assumes a general energy usage of 4000kWh/year for a residential customer on Energy Locals Time of Use Tariff – (TOU – Peak, Off-Peak & Solar Sponge).

The reference price is set by the Australian Energy Regulator (AER) for a financial year in relation to electricity supply to residential customers in the distribution region and is based on an assumed annual usage amount. Any difference between the reference price and the unconditional price of a plan is expressed as a percentage more or less than the reference price. The terms of any conditional discounts are shown, along with any further difference between the reference price and the discount applied if a condition is met, expressed as a percentage more or less than the reference price.