How quickly does a plant review produce value?

The baseline and the prioritised intervention list are usually the point at which owners stop guessing and start spending on the right thing.

Asset Performance / O&M

Operations & Maintenance

Plant reviews, monitoring and intervention across the operating life of an asset.

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DisciplineAssessment to maintenance

Documented projects26

Documented capacity8.72 MWp

Registered forPunjab, Sindh, KPK, Islamabad

The problem

A solar plant is a twenty-five year asset with a two-year warranty period and a five-year attention span. Underperformance is usually a combination of the ordinary and the ignored: soiling, new shading, a string down, an inverter derating, monitoring that stopped reporting.

When this solution applies

/Existing plants whose generation no longer matches expectation.
/Assets installed by another party, with incomplete documentation.
/Portfolios that need one monitoring and review standard across sites.

System architectureO&M

How it works

Four steps, no handover gaps.

01Establish the baselineModelled expectation against actual generation over the review period, with the gap attributed.

02Physical inspectionSoiling, shading, hotspots, string configuration, connectors and water ingress.

03Prioritised interventionsEach with the expected recovery, so spending can be sequenced against return.

04Monitoring and reviewPerformance reporting, exceptions flagged, and scheduled reviews across the year.

Scope of works

Operations & Maintenance: what the engagement covers.

The full published scope, transcribed from RESOLV's own service document so that a procurement team can see exactly what is included.

PV array and support frames10 checks

/Solar PV array cleaning
/Checking PV array civil foundations
/Checking anchor bolts for rust and corrosion
/Checking the PV array for physical damage
/Checking and tightening PV array fixing clamps
/Checking PV support frames for corrosion
/Checking and fixing PV cables and MC4 integrity with support structures
/Checking exposed cable condition for damage or fungus
/Checking DC cable manhole conditions
/Checking vegetation growth under or in front of the array

Water supply system3 checks

/Checking water leakages in supply lines
/Checking physical condition of stub-up lines
/Checking supply pumps for physical damage or corrosion

Water drain system3 checks

/Checking drain channels
/Ensuring drain sump tanks are empty
/Checking pump operation

Earth pits8 checks

/Checking earth pit manholes for damage or corrosion
/Checking the condition of copper bus bars in each pit
/Checking resistance of DC earth pits, individual and combined
/Checking resistance of LV earth pits, below 5 ohms
/Checking resistance of MV earth pits, below 5 ohms
/Checking resistance of LP earth pits, below 5 ohms
/Checking resistance of instrument earth pits, below 5 ohms
/Checking continuity of PV modules with the earth loop

Inverter room16 checks

/Inverter room cleaning
/Checking cables in manholes outside the inverter room
/Checking that all air inlets and outlets are in good condition
/Checking inverters for abnormality, damage, corrosion or loose fixing
/Checking the physical condition of DC panels
/Checking the physical condition of LV panels
/Checking the physical condition of MV panels
/Checking the physical condition of data loggers
/Checking the physical condition of EMS panels
/Checking earth continuity of each panel inside the inverter room
/Checking connection integrity in DC panels
/Checking connection integrity in each inverter
/Checking connection integrity in LV panels
/Checking the condition of MC4 connectors
/Recording inverter room temperature
/Recording DC breaker panel temperature at peak production time

Transformer room2 checks

/Transformer room cleaning
/Checking for oil spills from the transformer

Weather station3 checks

/Checking the weather station and cleaning the irradiance sensors
/Checking the module temperature sensor fixing
/Checking weather data on the portal

Lightning protection system1 checks

/Checking LPS rods, controller and cables

Site lighting3 checks

/Ensuring all lights are operational
/Checking cable entries to pole terminal boxes for ingress protection
/Checking earthing of light poles

Reporting and online monitoring5 checks

/Checking for alarms and warnings
/Checking the performance ratio of the system
/Checking inverter air temperature
/Comparing monthly output with estimated values
/Comparing annual output from the EMS with estimated figures

RESOLV methodology

How the work is run.

/Measurement before quotation. No intervention is proposed without a baseline.
/Documented findings an owner can use in a warranty discussion.
/Monitoring configured before handover of any RESOLV project.

Equipment and technology

Specified against the design.

/Monitoring and reporting platforms.
/Cleaning, inspection and component replacement programmes where justified.
/Spares strategy defined against the installed equipment.

Documented projects

Where this has been delivered.

Only engagements that exist in RESOLV's documented project record appear here.

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This architecture is delivered through consultancy and advisory engagements.

The documented record covers 26 installations totalling 8.72 MWp across 2019 to 2026: on-grid, off-grid and a consultancy engagement. This particular architecture is delivered through consultancy and advisory work, which is released on request rather than listed project by project.

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Engineering notes behind this solution.

Engineering12 July 20266 min read

Before selecting a solar EPC: seven questions procurement teams should ask

The cheapest compliant tender is rarely the cheapest project. These are the questions that separate a contractor from an engineering partner.

Read the article

O&M14 May 20266 min read

Solar plant underperformance: what a first plant review should establish

Before anyone quotes a repair, the plant has to be measured against what it should have produced.

Read the article

Solar18 August 20268 min read

What should an industrial solar feasibility study actually tell you?

A feasibility study is not a quotation with a chart on top. It is the document that decides whether capital should move at all, and on what terms.

Read the article

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FAQs

Operations & Maintenance: what clients ask.

Yes. Reviews start from measurement of what the asset should produce against what it produces, which works on any plant regardless of who installed it.

Next step

Request a plant review

Five questions, reviewed by an engineer before anyone contacts you.

01 Need02 Facility03 Location04 Scale05 Contact

Step 1 / What do you need?

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