About us


We're a little company making a big difference.

We're creating higher quality, higher value rental properties that benefit everyone, with increase rental returns for owners and reduced power bills for tenants.

By unlocking solar for rentals we can all play a part in our transition to an affordable, clean energy future!


Why we're different

We're not solar installers nor energy retailers. We're communicators and facilitators.

Our role is to make the value of sun powered rentals explicit, communicating it in a simple and transparent way that allows everyone in the rental market to place a fair value on solar.

We're lean (on costs and paperwork).

We've created the simplest solution - free of additional contracts or financial transactions - that minimises service fees and maximises the value for owners and tenants.

Our services provide an elegant way for both owners and tenants to enjoy the benefits of sun powered rentals.

Dr Bjorn Sturmberg and Stucco President Sarah King amongst Stucco's solar panels.   Photo: Katherine Griffiths, City of Sydney

Dr Bjorn Sturmberg and Stucco President Sarah King amongst Stucco's solar panels.

Photo: Katherine Griffiths, City of Sydney

Our story

SunTenants was founded by Dr Bjorn Sturmberg with the support of the Sidney Myer Fund. Dr Sturmberg has a PhD in physics from the University of Sydney, where his research into improving solar cell efficiency was awarded funding from the Australian Renewable Energy Agency. 

While completing his PhD, Dr Sturmberg spearheaded the first installation of a solar and storage system in an Australian apartment. This multi-award winning system now supplies the 40 low-income residents of Stucco Co-operative with the majority of their energy and has slashed their bills by half.

The Stucco project highlighted the inequity of rentals being locked out of the solar revolution that is sweeping across Australia’s owner-occupier properties, over 1.8 million of which have solar. This exclusion is holding back Australia's transition to a sustainable future and leaves tenants exposed to skyrocketing electricity prices.

Motivated and informed by the success of the Stucco project, Dr Sturmberg founded SunTenants as a for-purpose enterprise that's unlocking the vast solar potential of Australia’s rentals.

SunTenants delivers great outcomes and experiences for everyone: property owners, tenants, and property managers. Sign up for our newsletter and be part of our story.


Our principles


Life's too short for complicated bills

Solar is a beautifully simple technology, and we believe installing solar on a rental property should be equally simple.

We work hard behind the scenes to present the value of your solar system in $ terms: a $/week rental increase, and the measured $/week saved on power bills.

Our solution avoids the hassle of additional contracts or bills, and our lightweight business model maximises the value for owners and tenants by minimising service fees to $95 p.a.

The energy industry has hidden behind complicated pricing and fine print for too long, we're here to empower you with simple solar.


Value must be explicit to be shared

Sun powered rentals are a win-win, where the value of solar is shared between owners and tenants.

To ensure the value is shared fairly we monitor the solar system's output and the property's energy use.

We keep everyone informed with real time solar output and bill savings on our website, and solar savings statements sent to Owners and Tenants quarterly.


Transparency builds trust

Our sole commitment is to our customers.

Our transparent business model has seen us win multiple partnerships with the leading councils, and electricity network companies.

We work with only the very best solar installers who share our commitment to all round quality as a cornerstone of building a brighter tomorrow.

We're totally independent of energy companies and funded by the philanthropic Myer Foundation.


Our partners

We're proud to have been funded by the philanthropic Sidney Myer Fund through the Myer Innovation Fellowship program.

 If you're working on an idea to change the world for the better, you may wish to look at this outstanding program.


We’re proud to use award winning hardware manufactured by Sydney company Wattwatchers, who have been in operation since 2007 and were recently invested in my the Australian Government's Clean Energy Finance Corporation. Wattwatchers’ smart monitoring devices record the power generated by the solar system and used by the property, which allows us to calculate the full amount tenants have saved on their power bills as well as monitoring the health of the solar system.


Weldonco are the managers of the CSIRO's Centre for Liveability Real Estate Program.

 We've benefited enormously from their decades worth of insights into the rental market.


We are delighted to have been selected to work in partnership with the Moreland Energy Foundation (MEFL), who are an independent not-for-profit organisation based in Melbourne's inner north.

 MEFL is dedicated to tackling climate change by working with communities, partners and governments to implement sustainable energy projects. Together SunTenants and MEFL are promoting the installation of solar on rental properties in their local area.

Our preferred installers

You may choose whichever solar installer works best for you.

If you're looking for a place to start, we're happy to recommend the following companies that have been in operation for more than 10 years and - in our experience - offer high quality products and services.


Solaray Energy is one of Sydney's leading solar installers and the largest installer of Enphase micro inverter systems in NSW.They have been working with SunTenants from the very beginning, when they won the tender to install the Stucco Solar + Storage system for which they won the Clean Energy Councils Installer of the Year in 2017.


Solgen was the Number One Commercial Solar Company in Australia in 2017 and are annually installing 17 megawatts of solar.

Their clients are diverse and include shopping centres, wineries, airports, commercial warehouses, office buildings, schools, universities and industrial complexes.

Contact us


We're based in Sydney, Australia

EnergyLab, Building 25

4-12 Buckland Street
Chippendale, NSW 2008




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