Existing photovoltaic systems · Companies
Put the value of your system back at the center.
Lower than expected production, recurring failures, difficult-to-find components, or changing business needs: an existing plant requires data-driven decisions. With photovoltaic revamping and repowering, we analyze the critical issues and design interventions to recover functionality, update the system, or increase power output. Each choice also considers coverage, connectivity, and work organization.
Choose wisely
The revamping intervenes on the existing system to restore or improve functionality and reliability. It can involve inverters, modules, connections, protections, and control instruments. Repowering aims to increase the installed power through a project that verifies technical feasibility and compliance.
The two activities can coexist, but they must be compared with a third option: maintaining the plant and resolving limited critical issues. Scheduled maintenance supports operation over time; a redevelopment project, on the other hand, modifies specific parts or the overall configuration.
Data before the decisions
We start with production data, alarms, inverter availability, and a history of interventions. To interpret a deviation, we consider glare, temperature when available, shadows, stops, and limitations. A comparison between two annual totals alone does not identify the cause of a drop.
We complement this reading with the consumption curves of the activity: shifts, weekends, seasonality and new workloads. In this way, we distinguish the energy to be recovered for anomalies from that which could potentially be produced through an expansion, and assess how much of it can be used on-site.
Requirements and solutions
01
We assess the restoration and replacement of critical components, considering compatibility, accessibility, and availability of spare parts. The intervention may involve a portion of the system or require a broader revision of the electrical architecture.
02
An increase in consumption makes it useful to verify the potential of the available surfaces. The repowering project compares additional power, self-consumption profile, connection limitations, and necessary works. The energy produced in excess does not automatically correspond to an equal reduction in consumption.
03
When the roof requires work, we coordinate the evaluation of photovoltaic systems with that of the roofing. Components removal and repositioning, fixing, electrical wiring, access routes, and construction phases must all be considered. Any stops must be factored into the planning from the very beginning.
The project as a whole
The insertion of new modules or inverters requires checks on voltages, currents, string configuration and available inputs. The verification extends to cables, panels, protections, measurement and connection system, according to the scope of the intervention.
A BESS storage system can be evaluated alongside photovoltaic systems when there is a specific objective, such as shifting energy between time slots or managing certain peaks. Capacity, power, and control must be sized based on the activity data. The backup function requires a dedicated architecture and the identification of the loads to be powered.
Configuration and compliance
Before starting the works, we reconstruct the configuration of the system, the available practices, and any incentive scheme. The rules of the Energy Account distinguish different types of intervention; replacements, accumulation, and upgrades do not automatically require the same requirements.
The proposal must clarify the necessary updates with GSE, the distributor, and other relevant parties, as the case may be. Any increase in power must be coordinated with the connection and the proper management of the plant sections and measures.
A comprehensible path
We organize the process in four steps: data collection, critical issues assessment, comparison of alternatives, and planning of the intervention. We define what to keep, what to replace, which verifications to perform, and what documentation activities are planned.
The economic comparison distinguishes investment, operating costs, and expected benefits, specifying the assumptions. The final verification considers the functioning of the stakeholders; the subsequent monitoring allows reading the results in relation to comparable conditions. Timelines and possible interferences are evaluated together with the site’s operationality.
No. It can involve an expansion or a part of the system. The choice depends on the condition of the components, compatibility, space, connection, and company objectives.
The phases are planned taking into account production and logistics. Some operations require stops or limitations: duration and methods must be defined in the project, without assuming absolute continuity.
The assessment depends on the scheme and the planned modification. It is necessary to verify the applicable conditions before taking action, also distinguishing the possible new portion that is not incentivized.
Schemes, models and installed capacities, historical production, load curves, alarms, performed maintenance and connection and incentive documents. Future production changes also help to define the project.
Let's start from here
Let’s start with the company’s critical issues and objectives to build a motivated, verifiable, and compatible intervention with the site.
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