PORTFOLIO
Compare sites consistently
Bring systems across brands and providers into one shared hierarchy, from portfolio level to each available device.
For multi-site owners and asset teams
Bring your solar and battery systems into one view, turn multiple cloud accounts into centralised portfolio reporting and keep the journey from observation to investigation and resolution visible.
Diagno analyses your data and tells you when systems need attention. It never takes control of equipment, and your qualified technicians handle physical inspection and rectification.
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View the whole portfolio in one place
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Plain-language issue notifications
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All the tools to prioritise action
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Use data to prove the fix
Protect your investment
Managing a commercial portfolio gets much simpler when you can see generation, performance issues, service work and reporting in one place.
PORTFOLIO
Bring systems across brands and providers into one shared hierarchy, from portfolio level to each available device.
PERFORMANCE
Go beyond “online” and “generating”. Diagno shows you when a site’s performance needs a closer look.
PRIORITY
We prioritise issues for you and give your team the tools to organise follow-up around operational and financial impact.
REPORTING
Keep observations, investigations, site findings and performance outcomes together so every stakeholder can see what changed and what remains open.
Portfolio workflow
Start with a representative group or your business-critical sites, then expand across the portfolio as the workflow proves itself.
STEP 01
Agree which sites, performance expectations, reports and service responsibilities matter most to your team.
STEP 02
Provide secure, read-only access through our supported pathways. We’ll tell you exactly what data each connection can bring into the platform.
STEP 03
Diagno builds a performance picture across your portfolio, sites and devices using available current and historical data.
STEP 04
Send qualified technicians when necessary, record the physical finding and show what happened to performance after rectification.
Anonymous commercial case
At a 99.5 kWp commercial system in northern New South Wales, analysis of available history indicated string-fault evidence extending back to 2021. The maintenance conversation was no longer “There might be something wrong here.” There was now a documented trail leading to a specific problem.
The client arranged an inspection. The technician found blown string fuses associated with panel damage, replaced them and documented the work. Subsequent performance returned to the expected range. Diagno consolidated the data, found an issue going back years, pointed the team to the right place and then provided real, reportable metrics showing the resolution.
99.5 kWp
system size
60–75%
reported performance before rectification
As far back as 2021
fault evidence in available history
Research and industry
Diagno’s research participation and industry backing have given us both analysis techniques that are just for us, as well as experience in exactly how large solar and battery fleets need to be managed.
UNSW has been at the forefront of photovoltaic research for decades. Working with SPREE (School of Photovoltaics and Renewable Energy Engineering) gives Diagno the opportunity to apply world-leading research to continually improve our diagnostic algorithms and analysis techniques.
Working with the UTS Institute for Sustainable Futures gives Diagno the opportunity to help translate cutting-edge research into practical diagnostic tools for commercial solar systems, improving fault detection, maintenance decisions and operational performance.
Diagno announced Formbay’s investment in May 2026, citing portfolio intelligence, diagnostics, reporting and operational workflows.
Explore the operating model
Your best results come when everyone can see the same evidence and knows who owns the next action.
RESOURCE
See how Diagno turns remote observations into a focused technician brief and documented rectification process.
RESOURCE
Read the official RACE for 2030 scope, partners, status and work packages.
RESOURCE
Explore why a communications gap can hide both performance status and the evidence needed to investigate it.
Commercial portfolio questions
Can Diagno monitor every solar system in our portfolio?
It’s likely. We currently support upwards of 18 distinct data sources, including metering providers and direct inverter/battery monitoring. The common exceptions are decades-old systems and defunct brands. Regardless, we’re happy to work with you to get all your systems online.
Does Diagno guarantee savings or returns?
No. What we do is show you where performance is being lost and give you the data to make better operational and financial decisions. Your actual result will depend on the site, tariff, contracts and rectification work.
Can Diagno remotely control the portfolio?
No. Diagno exerts no control over any devices we monitor, without exception. We ask for the minimum possible permissions necessary to offer system oversight.
How quickly will we be notified of issues?
For issues that we’re concerned are a safety risk we contact you as soon as we’re aware. If a system isn’t generating or we’ve verified a partial loss we aim to notify the next day. Some issues frequently resolve themselves, or require a longer time period to establish a pattern beyond the initial anomaly.
Does remote analysis replace our O&M provider?
No, and we don’t pretend to. Diagno gives owners and service teams a shared evidence trail, makes the next site visit easier to scope and keeps the rectification outcome visible. Qualified technicians remain essential for physical inspection, safety, compliance and repairs.
Start with a portfolio review
Share details about your portfolio with us and we’ll show you how Diagno can strengthen reporting, focus site work and improve system outcomes.