Hall roof
150 kWp
556 panels
in operation since 2016
Annual loss
28 700 kWh
≈ €4,880
Calculation details
We monitor output and handle faults, claims and service. For you.
A photovoltaic plant should deliver a stable return for years. In practice, that return is reduced by faults in panels, cabling and inverters, that ordinary monitoring misses.
Sunalytiq tracks down and resolves these losses. Our software Parhelion evaluates the operation of the whole plant, pinpoints the exact location of the fault and calculates how much it costs you.
But software is only half of it. We verify the finding ourselves, arrange a technician, handle the warranty claim or the insurer, and after the repair check that the plant is producing as it should again. You only approve the repair, and you know the price in advance.
150 kWp
556 panels
in operation since 2016
Annual loss
28 700 kWh
≈ €4,880
Calculation details750 kWp
3,060 panels
in operation since 2012
Annual loss
164 000 kWh
≈ €28,000
Calculation details1.5 MWp
6,520 panels
in operation since 2010
Annual loss
349 000 kWh
≈ €59,300
Calculation detailsParhelion monitors your plant around the clock, including weekends and holidays, from inverters down to individual strings. When something is off, you know before the loss grows, and we help with the repair.
I want a plant checkWe connect to the data your plant already sends: inverter, datalogger or existing monitoring. We install nothing, and you keep your portal.
Parhelion calibrates on the historical data of each plant individually. That is why it detects even a small drop and pinpoints the exact string.
For 98.6% of findings, Parhelion identifies the correct string. It finds most losses on day one and quantifies each in kWh and in money.
We find a technician, order the work and oversee it. You know the price in advance, and nothing happens without your approval.
We prepare the documentation from the data and handle claims with the manufacturer and talks with the insurer. When a warranty covers the defect, we work to pass the costs to the manufacturer or supplier.
After every intervention we compare output with the model. It is done only when output has actually returned.
Our software for managing solar plants. It builds a digital twin of every plant that knows what it should have produced. It breaks every gap down into causes and calculates what it costs.
We find the problem, you approve the repair, and we take care of the rest.
The location, the loss in money and the probable cause.
With one click. You know the price in advance.
The service, the claim and confirmation that output has returned.

Large roofs and no technician on site. We watch output and arrange repairs, you only approve them.

The plant runs, but nobody is responsible for its output. We take over monitoring and service.

Dust and pollen on the panels, service far away. You know when cleaning pays off and when it does not.

One overview for all plants and one partner for service, warranty claims and insurance.

Data and documents for your clients’ plants. Let’s work together.
For commercial, business and ground-mounted plants. Typically rooftops of manufacturing and logistics halls, commercial buildings, agricultural sites and owners with several plants.
Neither the size nor the age of the plant matters. Parhelion works with older and newer installations, and with a portfolio you see all plants in one portal. If you are not sure it pays off for you, we will tell you straight after the first analysis.
We do not charge for coordination separately; it is part of the service. You pay only for what you approve.
Usually not. Parhelion works with the data your plant already sends to the portal of the inverter manufacturer, datalogger or existing monitoring. Nobody has to go on the roof for it, and plant operation is not interrupted.
If some data is missing, such as output per string, we tell you in advance. We propose what to add, what it will cost and what benefit it brings. The decision is yours.
Common inverter brands, for example Huawei, SMA, Sungrow, Fronius, SolarEdge, GoodWe, Solis or Growatt, monitoring systems such as meteocontrol and Solar-Log, and also SCADA systems of larger plants.
We confirm the exact way of connecting at the first consultation. Your existing portal and contracts with suppliers stay as they are; Parhelion only reads and evaluates the data.
Access to a portal with an overview of output, expected output and all findings. For each finding you see exactly where it is, what probably causes it, what it costs you in kWh and in money, and what we recommend next.
For a serious problem we alert you by email. For every verified finding you get a report with the location of the defect, measurement results and a repair proposal. It also serves as documentation for a bank, insurer, audit or a claim with the manufacturer.
No. You still need a technician on site. We solve what is usually missing between monitoring and service: we find the problem, determine its location and cause, prepare a precise brief and check the result after the repair.
If you have your own service supplier, we work with them and hand over the brief. If you do not, we arrange a technician and coordinate the whole intervention.
For Parhelion software and coordination you pay one fixed monthly amount, agreed in advance. We charge nothing else on top, and we take no commission from repairs, service or supplies.
You pay for the service itself, parts, transport or drone measurement, because it is work on your property. With your consent we prepare non-binding quotes for you and compare them, and the decision is yours alone. You always know the price and all details in advance. When a warranty covers the defect, we handle the claim with the manufacturer or supplier.
Only authorised Sunalytiq people who look after your plant, and those you grant access to yourself, such as your service company or building manager. Portal access is protected by a password and two-factor authentication.
We do not sell data and use it only to manage your plants. You will find the details in Privacy.