Case Studies

Our Energy Audits have transformed sites of all sizes, delivering significant cost savings and carbon reductions.

These case studies highlight our results, showcasing the financial and environmental benefits achieved through targeted energy efficiency strategies.

Small Site, Big Results: 60% Savings Achieved

Site Size: Small

Energy Spend: $193,061

Savings Identified: $124,000

Percentage Savings: 60%

Payback Period: 2.92 Years

Carbon Reduction: 500 tons


Our focused energy audit revealed substantial opportunities, slashing costs by 60% with a rapid return on investment!

Large Scale Efficiency: A 21% Cut in Costs

Site Size: Large

Energy Spend: $432,589

Savings Identified: $91,450

Percentage Savings: 21%

Payback Period: 3.4 Years

Carbon Reduction: 269 tons


This large facility capitalized on energy savings, achieving significant reductions in both costs and carbon footprint.

Steady Savings: 37% Cut for a Small Facility

Site Size: Small

Energy Spend: $55,627

Savings Identified: $20,619

Percentage Savings: 37%

Payback Period: 8.19 Years

Carbon Reduction: 75 tons


An energy audit unlocked savings, proving even smaller sites can make a big environmental impact.

27% Energy Savings for a Medium-Sized Site

Site Size: Medium

Energy Spend: $282,869

Savings Identified: $75,860

Percentage Savings: 27%

Payback Period: 3.71 Years

Carbon Reduction: 160 tons


A straightforward energy audit uncovered opportunities to reduce costs by over a quarter while lowering the carbon footprint.

Small Site, Big Carbon Reduction: 42% Savings

Site Size: Small

Energy Spend: $189,471

Savings Identified: $79,578

Percentage Savings: 42%

Payback Period: 6.54 Years

Carbon Reduction: 527 tons


This small site achieved an impressive carbon reduction and slashed energy expenses by nearly half.

Client Testimonials

  • SolSombra brought strong strategic expertise to the EV fleet transition work we collaborated on and were easy to work with throughout. They understood the realities of council fleets and focused on what would actually work, not just theory. Their input strengthened our overall assessment and gave us confidence that the recommendations were practical and defensible. They helped to enhance the breadth and depth of the feasibility while simplifying complex information so it could be clearly communicated to the Council and stakeholders.

    — Graham Jarvis, Portfolio Lead – Strategic Finance of AEC Group

  • Energy costs are one of the biggest line items for a property like ours. SolSombra conducted a thorough energy audit and delivered a clear action plan with specific savings targets, payback periods, and priority investments. The recommendations were practical and grounded in our actual operations. Their team was straightforward, responsive, and understood the commercial realities of running a hospitality business. We would recommend SolSombra to any property owner serious about reducing energy spend."

    — Tim Canny, Director, Sovereign Park Motor Inn

  • As a multi site childcare operator, we needed a structured approach to assessing solar across our portfolio. SolSombra delivered a clear framework to evaluate each site and identify where solar would deliver the strongest returns. Their work went beyond high level advice. They provided detailed insights on performance, costs and implementation considerations. They also supported us in sourcing a reliable provider, reducing risk and ensuring quality outcomes. The result is a well considered solar strategy that balances financial return, operational fit and long term value. They also helped us secured cheaper electricity across the portfolio, amplifying the energy savings. We'd highly recommend SolSombra for any business for strategic and real-world guidance on renewables and energy

    — Nicholas Weininger, Company Director of learn and laugh

  • SolSombra brought a very pragmatic approach to the Shire’s low-emissions fleet transition. They took the time to properly understand our operational realities and constraints, then translated that into a clear, staged transition pathway that Council and the executive team could engage with confidently. The work was thorough and technically sound, but presented in a way that was easy to follow and focused on decisions rather than theory. Importantly, they worked in a way to minimise our internal effort while still giving us confidence in the outcomes. The result is a credible and practical roadmap that we can actually implement. We'd be happy to recommend them to other entities looking at EV Fleet Transitions

    — Clinton Kleynhans, Manager Built Environment & Operations of Shire of Mundaring

  • Landon is an insightful, diligent and trustworthy advisor. Working with him has been a pleasure and he's helped us along in our renewables journey.

    — Vernon Rooyan, Energy Manager of St Vincent's Health

  • SolSombra, has been an invaluable partner in our sustainability journey at Smarter Communities. Leveraging their extensive experience, they conducted a comprehensive market analysis and developed a strategic go-to-market plan for sustainability solutions within our portfolio. SolSombra's expertise in business strategy and energy advisory has been instrumental, and we highly recommend their services.

    — Marc Nauer, Director of Smarter Communities

  • SolSombra has been a brilliant partner for RE Greenlink, helping us navigate complex EV fleet transition strategies for our clients. Their expertise in strategic and financial planning turned a complicated process into a clear, manageable roadmap. It’s rare to find a team that combines such deep technical insight with a genuinely collaborative approach, they’ve been a fantastic asset to our projects and a pleasure to work with.

    — Will Hall, Director of Greenlink RE

  • SolSombra completed an energy audit across our retail centre that provided clear visibility into where our energy costs were coming from and where the biggest opportunities sat. Their analysis broke down usage across key systems and highlighted practical upgrades for us. The process was structured, efficient and easy for our team to work through. We now have a clear roadmap to improve energy performance across the centre and reduce long-term operating costs. We would happily recommend SolSombra to other commercial property owners looking to better understand and optimise their energy use.

    — Brett Lovett, Development Director of Parafield Outlet Centre

Energy auditor with tablet inside an industrial facility assessing machinery for efficiency improvements

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