In an industry defined by transitions – technological, environmental, and geopolitical – Specialised Energy Solutions (SES) is gaining a reputation not just for adapting to change, but for leading it by consistently meeting and exceeding the evolving needs of its clients.
Aaron Mulhall, General Manager and Founder of Specialised Energy Solutions (SES), is at the centre of a company driving Australia’s energy transition. His focus on precise execution, transparent accountability, and deep technical expertise has propelled SES from a nimble startup to a leading force in Australia’s utility-scale renewable energy infrastructure sector.
“We’re not here to win every tender, we’re here to deliver exceptional results on the ones we choose to pursue. For us, it’s about building long-term partnerships,” says Mulhall.
“Clients come to us because we fix what others walk away from – and we deliver solutions that last.”
SES launched in 2022, but Mulhall’s own career runs more than 15 years deep into Australia’s electrical and infrastructure sectors. He says that what sets SES apart is its field-proven expertise in understanding how systems perform under real-world operational stress – not just in theory. Coupled with a strong commitment to quality, clear communication, and customised delivery, SES has earned the trust of Tier 1 clients and secured long-term partnerships.
Spend enough time in internal meetings, the company says, and someone will inevitably refer to themselves as a “nomad” – a reflection of the SES culture, where teams move from project to project, often in some of the most remote and challenging locations. At SES, everything happens in the field. Being on site is not just part of the job – it defines the company.
“SES was built around a simple but powerful premise,” Aaron explains.
“What if your EPC partner didn’t just build the system – what if they understood it inside out, could operate it, and were ready to repair or upgrade it the moment something went wrong?”
“That’s the depth of expertise we bring. We’ve commissioned the equipment, repaired it, and redesigned it when necessary. We also maintain strong, ongoing relationships with many of the leading renewable equipment manufacturers.”
With over 6.9 gigawatts (GW) of project experience spanning solar, battery storage, substations, and hybrid solutions – including major developments across NSW, QLD, SA, WA, and the ACT – SES has established itself as a trusted delivery partner.
SES also provides comprehensive Operations & Maintenance (O&M) services, ensuring lasting performance and accountability beyond project completion.
“We’ve operated at scale across every major state, often in challenging conditions,” says Mulhall.
“We don’t just deliver infrastructure – we actively absorb risk on behalf of our clients. This is made possible by our rigorous staff selection process and a team of highly qualified, experienced professionals in the field.”
Redefining EPC from the inside
In a sector often split between glossy front-end consultants and reactive service providers, SES has consciously embedded full-cycle capability into its model, from early works through to long-term maintenance.
“This isn’t just about vertical integration,” says Mulhall, “it’s about accountability.”
By uniting EPC, commissioning, storage and logistics, and long-term O&M under one roof, SES removes the disconnects and handovers that often result in performance losses and diminished asset reliability.
This integrated approach ensures end-to-end ownership and consistently high-quality outcomes.
“Plenty of companies can sell EPC,” Mulhall says.
“But if you’re going to install 100 megawatts [MW] of batteries, someone’s got to make sure they don’t trip in year two. We make those decisions upfront because we’re the same team answering the phone when the inverter’s down.”
SES’s EPC expertise spans small to medium-scale projects, typically ranging from 2 to 50 MW, while its Construction and Commissioning (C&C) division has played a role in delivering over five GW of installations across the nation.
From underground high-voltage cable installations, to specialist busbar mounting and noise suppression retrofits, SES integrates advanced field expertise with electrical services and comprehensive project management.
Its ISO 9001, 14001, and 45001 certifications demonstrate a commitment to procedural discipline and are a testament to the company’s externally verified operational rigor.
A business built on root cause
One of SES’s most valuable yet often under-recognised capabilities is its technical forensics team. The team provides independent root cause analysis (RCA) for major failures across PV, battery energy storage systems (BESS), and electrical balance-of-plant (BoP) infrastructure.
“There’s a significant service gap in this area,” says Alba Ruiz Leon, Non-Executive Director at SES.
“The industry urgently needs unbiased technical reporting on behalf of asset owners. When failure assessments are conducted by manufacturers, there’s an inherent risk of bias.
Independent RCAs are essential – they serve as critical technical evidence for insurance claims, support clients in securing manufacturer replacements at no additional cost and help identify potential equipment serial defects.
“When a solar asset underperforms or a transformer fails, clients need more than technicians who simply replace parts – they need a trusted partner with highly qualified experts capable of precise diagnosis,” Ruiz Leon explains.
“That’s what sets SES apart. We’re the partner clients turn to when they require faults to be fully resolved – not just identified or temporarily patched. We take the time to clearly communicate the risks and benefits of the available options, empowering clients to choose the most appropriate long-term solution for their business.”
SES performs thorough investigations to uncover root causes and functional failures, delivering repairs that ensure sustained asset reliability and peak performance.
This hands-on expertise directly informs SES’s comprehensive O&M model, which integrates predictive, preventive, and corrective maintenance with flexible, boots-on-the-ground support for PV, BESS, and hybrid sites – delivered by mobile or fixed, HV-qualified teams.
The outcome is fewer unplanned outages, extended asset lifespan, and significant cost savings over the mid to long term. These benefits are especially critical in markets facing tight margins and increased regulatory scrutiny.
“As we hear consistently from our clients, the market is urgently demanding high-quality O&M service providers,” Mulhall adds.
#theSESstandard
Mulhall is no fan of hollow slogans, but he does believe SES’s culture is its differentiator. The company operates under what it calls ‘#theSESstandard’ – a guiding principle baked into hiring, training, decision-making, and delivery.
“It’s not a brochure tagline,” he says.
“It’s a performance filter. If we can’t back it in the field, we won’t promise it in the meeting.”
That standard of excellence is reflected across every aspect of SES’s operations – from low-voltage (LV) testing and high-voltage (HV) substation hot commissioning to its safety-first field protocols and proprietary maintenance routines for noise suppression systems.
In remote locations, where logistical delays and resource constraints can severely impact performance, SES distinguishes itself through rigorous pre-emptive planning and resilient, field-ready crews.
“We maintain a lean but highly capable operation – agile enough to move quickly, yet equipped to handle the complexity and scale our clients demand,” says Mulhall.
“Our teams are cross-trained across solar, wind, BESS, and grid-side infrastructure – including substations and balance-of-plant systems – because in remote environments, you don’t get second chances.”
“Versatility and precision in the field are critical to delivering reliable results under pressure.”
Twists in Australia’s energy curve
Asked about the future of the sector, Mulhall does not point to technology alone. Instead, he highlights changing client expectations and regulatory environments as the biggest pressure points, but also opportunities.
“Clients today aren’t just asking how many kilowatts you can install – they’re asking how long you’ll stand behind the asset and how you’ll keep it running long after the warranty has expired,” he explains.
“Most clients need comprehensive support from design through to end-of-life. At SES, our goal is to be a trusted partner throughout the entire asset lifecycle.”
Amid Australia’s ageing grid infrastructure, a constrained skilled workforce, and an asset base increasingly exposed to climate risks, SES’s emphasis on durability and lifecycle optimisation is recognised not merely as best practice, but as a strategic business imperative.
“We’re already seeing increased scrutiny around performance guarantees, system uptime, equipment selection and compatibility, as well as the integration of SCADA[supervisory control and data acquisition] systems and CMMS [computerised maintenance management system] for data acquisition and asset management,” says Mulhall.
“If you can’t address these requirements with confidence from the outset, you simply won’t win the work.”
Community, compliance and carbon
SES is also quietly advancing in areas like environmental noise compliance, underground cable minimisation, and lifecycle cost modelling. These are factors that, while often overlooked, are essential to community trust and long-term grid viability.
Mulhall says SES’s real advantage lies in thinking holistically, not just technically.
“Our goal is to support decarbonisation without dumping new problems into the system or the communities” he says.
“This translates to quieter assets near residential areas, reduced vehicle movements during operations and maintenance, optimised spare parts and logistics management, and an uncompromising commitment to quality from day one.”
This mindset is winning them repeat work, not just with asset owners, but also international original equipment manufacturers (OEMs) and grid operators seeking partners that understand both the technology and the terrain.
Looking ahead
SES’s national footprint continues to grow rapidly, with the company doubling in size every six months.
Now with a team of over 60 skilled professionals and the capacity to scale into large, complex projects, SES remains intentionally selective about the work it undertakes.
“We’re not chasing every job – we’re focused on the right ones,” says Mulhall.
“For us, it’s about building partnerships.
“If it doesn’t align with our standards, we walk away. And that’s exactly why we’re trusted.”
For Mulhall, the ambition is to build a company that remains technically excellent, ethically consistent, and operationally nimble.
“There’s always going to be a new inverter, a bigger battery, or a harsher site,” he says.
“But the fundamentals never change: know your equipment, know your team, and stand behind your work.”