End-to-end engineering for photovoltaic and energy-storage systems.

Capacity is determined after reviewing consumption, the load profile, allocated grid capacity, available area, operating requirements and connection conditions. Maximising installed capacity is not always the technically or economically optimal solution.

We need the site address and use, electricity bills, allocated grid capacity, any available load profile, the supply diagram, main loads, available area and the required operating mode. Missing data can be established through a technical site survey or additional metering.

Allocated capacity defines the contracted consumption limit and is important when assessing the connection point, cables, protection, metering and allowable PV and ESS operating modes. It is not the same as the actual maximum demand, so it is evaluated together with the load profile.

Interval load data enables more accurate PV and ESS sizing. It can be uploaded as an Excel or PDF file through the technical questionnaire. Where it is unavailable, the initial assessment can start from bills and main-load data, with temporary metering added as a separate stage.

ESS is considered when higher self-consumption, peak-demand reduction, backup supply, island operation, Zero Export or energy shifting between time periods is required. Power and capacity are sized against the site's actual operating profile.

Yes, following a technical review of the existing inverters, AC and DC architecture, switchboards, protection, metering, communications and control capability. The solution may be AC-coupled, DC-coupled or hybrid depending on the equipment and project objectives.

A grid-tied PV system operates in parallel with the distribution network and normally stops during an outage. A hybrid system combines PV and ESS and can support selected backup loads when correctly engineered. An off-grid system operates without the public grid and requires a dedicated energy balance, reserve capacity and coordinated control of generation and loads.

The sequence typically includes an application, input data, connection opinion or conditions, project documentation, coordination, construction, testing and commissioning documents. The exact steps depend on system capacity, operating mode and the requirements of the relevant DSO.

The scope may include site assessment, energy studies, detailed design, equipment selection and supply, installation, electrical connections, protection, metering, automation, configuration, testing, protocols, training and system handover. The exact scope is defined in the technical proposal and contract.

The contract defines the covered equipment, inspection intervals, remote monitoring, preventive checks, measurements, thermographic inspection, alarm analysis, response times and conditions for emergency visits. Service protocols are issued after inspections, recording findings and recommended actions.

We provide site surveys, design, construction and maintenance in Kardzhali and the surrounding region, as well as for projects elsewhere in Bulgaria. Organisation and lead times are defined according to location, scope and the required coordination activities.

Lead time and price depend on system power and complexity, site conditions, design disciplines, grid-connection requirements, selected equipment, mounting structure, cable routes, switchboards, protection and testing. A final proposal is prepared after sufficient technical data has been reviewed.