Solar power plant operations and maintenance
Solar PV operations and maintenance (O&M) companies face increasing competition and rising service costs. This article covers the key strategies for optimising maintenance processes, reducing unnecessary field trips, and building a more profitable O&M business as the global solar capacity continues to grow.
According to the International Energy Agency, global solar capacity is expected to triple by 2030. Efficient O&M practices are essential to ensure the optimal performance of the growing installed base.
Analyse and improve your error resolution process
Every customer-reported issue triggers a sequence of actions that directly affects profitability. From the first call to dispatching a technician and issuing an invoice, each step incurs cost. Without a structured process, multiple service trips accumulate and margins erode.
Establishing a clear process from error reporting to invoicing, and reviewing it regularly, ensures your business adapts as your customer portfolio grows and changes.
Collect data before sending a technician
Before initiating a service trip, gather as much information as possible through customer interviews, monitoring data and visual documentation. Being well-prepared before arriving on site reduces time spent troubleshooting and increases the likelihood of resolving the issue in a single visit.
Meticulous data collection before field trips is one of the most cost-effective changes an O&M company can make.
Plan service trips around priority and cost
Not all faults are equal. Some faults become irreversible without prompt intervention. Calculating the cost of lost energy for each open issue allows you to prioritise service trips correctly and allocate resources where they have the greatest financial impact.
A growing catalogue of documented fault experiences also enables proactive planning, reducing the frequency of unexpected failures over time.
Invest in solar PV skills and the right test equipment
A skilled workforce equipped with the right tools is the most reliable way to reduce the number and duration of service trips. Technicians who understand PV fault behaviour can identify and resolve issues that would otherwise require multiple visits or escalation to senior staff.
Investing in dedicated solar PV test equipment significantly improves diagnostic capability in the field. The ability to measure Voc, Isc, Riso and Rs in a single visit, and to locate faults precisely, is the difference between one truck roll and three.
Define clear criteria for field visits
Not every fault report warrants an immediate field trip. Differentiating between customers and establishing clear criteria for when to dispatch a technician optimises resource use and protects margins.
For O&M companies serving customers across a wide geographic area, transport planning becomes especially important. Batching visits by location and scheduling preventive work alongside reactive work reduces cost per visit significantly.
Reduce waiting time and track patterns
The rapid pace of solar PV installation over the past decade has left many systems with latent faults caused by time pressure during installation. O&M companies that can identify and rectify these deficiencies are well positioned to attract new customers.
Tracking wait times and maintaining a maintenance overview allows you to identify patterns that are affecting overall business efficiency, and to take systematic action to reduce them.
Resolve missing documentation before starting work
The absence of wiring diagrams and site maps is one of the most common causes of extended troubleshooting time. A technician who cannot locate the right string, combiner or module wastes billable time on navigation rather than diagnostics.
Clear documentation responsibility agreements must be established with customers before problem-solving begins. Settling who owns documentation responsibility in advance avoids disputes and prevents the cost of reconstructing missing plans from falling on the O&M company.
Train your team systematically
Experienced staff represent an underutilised knowledge resource in most O&M companies. Systematic internal training, where senior technicians share documented knowledge with newer staff, reduces the dependency on expert involvement for routine faults.
External training programs supplement this by exposing staff to current best practices and emerging fault types. Properly trained technicians avoid second service trips and resolve issues faster, directly improving profitability per job.
Recommended reading for solar PV O&M professionals
