Solar PV & Energy

Solar O&M and Monitoring

Cleaning, inspection, thermal scans, string tests and performance tracking, for systems we installed and systems others installed.

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What we usually find on site

Many solar systems have nobody looking after them after handover. The monitoring login is lost, dust and bird droppings cover the panels, one string has been dead for months unnoticed, MC4 connectors have burned, and the tree next to the building has grown into the sun. Output falls a little at a time until the owner decides that is just how solar is.

O&M is more than washing panels

Cleaning matters, but the biggest losses usually cannot be seen by eye: a dead string, a hot connector, a failed bypass diode in a junction box, insulation resistance that drops after the rainy season, or a wrong inverter setting. We check with instruments, not just by looking at the status light.

What a routine visit covers

Task	Tool	Looking for
Visual inspection	Camera, checklist	Broken panels, cracked glass, rusting frames, sagging cables, rodent damage
Thermal scan	Thermal camera in strong sun	Hot spots, cracked cells, failed diodes, hot connectors and breakers
String tests	Multimeter, clamp meter, I-V tracer when needed	Dead strings or strings below their neighbours
Insulation resistance	Insulation tester	Wet cables or connectors before the inverter trips
Inverter	App and alarm log	Fans, dust, firmware, grid and zero-export settings
Boards and earthing	Torque wrench, earth tester	Loose terminals, spent SPDs, broken earth conductors

Tracked with numbers

We compare each month's specific yield (kWh per kWp) with the same month last year and with the design estimate, and compare strings on the same inverter against each other. A string that consistently lags its neighbours is a reason to go and look. Your report says what we found, what we fixed and what is still open, with photos.

Systems installed by others

We take on systems installed by other companies, including ones whose original installer no longer answers. The first visit is a full health check: we redraw the single-line diagram if there is none, recover access to the monitoring app and list the problems in order of risk. If the inverter itself is the problem, see inverter repair.

Send us the inverter brand, system size and a screenshot of the monitoring app on WhatsApp. We will tell you what the data already shows before we book a site visit.

What it does

Panel cleaning done right

Clean water, soft brushes, early or late in the day. No pressure washers, no walking on panels.

Thermal imaging

Finds hot spots, failed diodes and hot connectors in strong sun with the system at full output.

Electrical testing

Voc, string current and insulation resistance, compared with handover values.

Remote monitoring

We watch alarms and production in the maker's app, with access you grant.

Reports with photos

After every visit: findings, fixes, measured values and open items.

Systems from any installer

First health check, redrawn diagrams and recovered app access.

Design and rollout

1
Collect system data: brands, models, panel and string counts, app access.
2
First health check: visual inspection, thermal scan, every string and insulation tested.
3
Fix safety risks first: burned connectors, earthing, SPDs.
4
Agree the plan: cleaning frequency, annual inspection and alerting.
5
Monthly tracking and reports, with site visits when the numbers drift.

Where it fits

Factory rooftops whose output has dropped for no obvious reason.
Systems whose original installer has closed or stopped answering.
Hotels and offices that want someone else watching the alarms.
Off-grid systems at schools and health posts needing regular battery checks and cleaning.
Sites near dusty roads, crushing plants or mines where panels soil quickly.

Typical system sizes

Health Check

Fits: One-off check for any size, or before we take a system on

Visual inspection and thermal scan
Every string and insulation resistance tested
Report of issues ranked by risk

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Routine Care

Fits: Homes, shops, offices and schools wanting year-round care

Cleaning 2–4 times a year depending on the site
Annual inspection with thermal scan
Remote alarm watch with WhatsApp alerts

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Commercial O&M

Fits: Factories and systems of several hundred kWp and above

Monthly performance report
Board inspection and torque checks
Spare-parts plan and fault escalation procedure

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Brands we supply & install

Huawei

Growatt Solis

All brand names and trademarks belong to their respective owners. Mention does not imply official partnership unless explicitly stated. Products are sourced through legitimate distribution channels.

FAQ

Another company installed our system. Will you look after it?

Yes. We start with a full health check so we know the state of the system and anything unsafe, then propose a care plan.

Is our drop in output just panel degradation?

Usually not. Good panels lose only about 0.4–0.55% a year depending on type. If output falls faster, the usual causes are dust, new shading, a dead string, a failed connector, or an inverter that keeps tripping on high grid voltage.

How often should we do a thermal scan?

Once a year for commercial systems, and whenever a string underperforms. Scan in strong sun with the system at full output, or hot spots will not show clearly.

Can we clean the panels ourselves?

Yes, if the roof can be reached safely. Use clean water and a soft brush early or late when the panels are cool, no harsh detergents or pressure washers, and never walk or sit on panels: it causes cell cracks you cannot see.

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