You’d never drive a car for 15 years without a service

You’d never drive a car for 15 years without a service

You’d Never Drive a Car for 15 Years Without a Service, So Why Do We Treat School Solar That Way?

School solar systems across Australia are quietly underperforming. Not because the sun stopped shining, but because the people responsible for keeping these assets running at peak performance haven’t been given the tools, or the mandate, to do so.

Ultimately, this comes down to mindset as much as anything. For the longest time, solar in schools has been framed as “set and forget,” and a one-off investment that, once installed, can be left to do its thing. And in fairness, that idea made sense when solar panels were new, small, and largely symbolic.

But the systems have grown and their role in powering schools more central. Now the way we manage school solar assets needs to grow up too.

From 5kW to 100kW and Beyond

Back in 2009, the National Solar Schools Program offered as much as $50,000 grants for schools to install solar. The goal was simple: get panels on rooftops and kick-start a culture of sustainability. A decade later, many of those systems are still in place. Unfortunately, they’re now older, dirtier, and more vulnerable to faults than most people realise.

Since then, system sizes have ballooned. What used to be 5kW installations are now routinely 100kW or larger. Monitoring systems have evolved, inverter technology has matured, and grid connection thresholds have become more sophisticated. Yet the thinking around operations and maintenance has barely shifted.

In fact, if you ask most schools whether their solar is working today, the common response is: “We don’t know.”

To use an analogy that we shared in our recent webinar: managing a solar system without monitoring is like driving a car with no dashboard. You wouldn’t drive a vehicle for 15 years without checking the oil, changing the tyres, or responding to a check engine light. Yet that’s exactly how many solar systems are being treated.

It’s not that schools are ignoring problems on purpose. It’s that until recently, there hasn’t been a practical, scalable way to know when something goes wrong, or even what “going wrong” looks like.

But things were going wrong, and the result was missed savings, lost emissions reductions, and systems slowly degrading without anyone noticing.

Five common issues found in poorly maintained school solar systems

  • Faulty inverters that silently fail, taking entire arrays offline.
  • Burnt-out isolators due to weather exposure and lack of inspection.
  • Panel soiling or shading that drags down generation across the system.
  • Data errors or communication faults that break monitoring visibility.
  • Completely inactive systems—sometimes for months—without anyone realising.

The ROI Trap: Why the Numbers Don’t Always Add Up

Solar often enters a school via a business case: here’s the cost, here’s the expected savings, and here’s how it helps us hit our ESG targets and often coupled with performance guarantees. The problem is that few schools ever verify whether those outcomes are actually delivered.

Unless a system is tied to a specific subsidy or monitored through a structured performance contract, performance tracking is sporadic at best. And once the install is complete, attention usually shifts elsewhere, until something breaks.

To continue the car analogies, this is a bit like buying a hybrid car, seeing the fuel savings on day one, then never checking the dashboard again. Eventually, something fails. But by then, you’ve already lost the benefit you paid for.

In Short: Monitoring Is Not a Luxury

Active monitoring is the single most powerful tool a school can deploy to safeguard its solar investment. It tells you when production drops unexpectedly. It helps verify returns. It supports ESG reporting. And it reduces the time between a fault occurring and someone fixing it.

A well-implemented monitoring system delivers:

  • Early fault detection before performance losses stack up.
  • Automated alerts so downtime doesn’t go unnoticed.
  • Verifiable energy and emissions data for annual sustainability reports.
  • Insights to support electrification or battery planning.
  • A clear audit trail to justify capital planning or future investment.
  • Customised reporting of actual performance vs. performance promises and guarantees from the installer.

There’s a reputational dimension here too. Schools often promote their sustainability efforts as part of their brand. Solar is visible. Students, parents and boards see it as a symbol of leadership. But when those systems underperform, or sit idle without anyone realising, that symbol becomes hollow.

Solar can power more than lights and laptops. It can power lessons in physics, environmental science, and civic responsibility. But only if it’s working. And only if the school can show it’s working.

What Smart Schools Are Doing Differently

Camberwell Grammar is a great example of what happens when a school shifts from one-off projects to systemic thinking. Their facilities team has embedded sustainability into operational planning, asset procurement, and long-term capital works. Their solar system is no longer an isolated line item—it’s part of a broader asset strategy, tracked with performance data and tied to a net zero 2030 target.

That’s the new standard. And it’s achievable.

If there’s one message for school business and facilities teams today, it’s this: you can’t manage what you don’t monitor, and you can’t maintain what you don’t inspect.

Solar is an infrastructure asset. It deserves the same attention, resourcing, and planning as any other part of your built environment. Especially when it’s tied to your ESG goals, your financial projections, and your public reputation.

You’d never fail to maintain your car. Your solar system deserves the same.