Documentation & approvals

The exact list is set by the distribution system operator in your area and varies with the type of supply point. As a rule, you need the connection application, proof of identity or the company's documents, the document proving your right to the property and a site plan. We tell you from the start what is required in your situation.

Yes, an existing connection can be moved or altered, but only with the approval of the distribution system operator and on the basis of the documentation it asks for. We look at your situation, explain the options, prepare the application and follow the approval until the work goes ahead, so you do not lose time on repeat visits.

A power increase is requested from the distribution system operator in your area, through an application accompanied by the documents for the supply point and the details of the new appliances or equipment. The full list depends on the operator and your situation. We calculate the power you need, prepare the application and tell you which documents to send us.

You need a power increase when the power you want to install or use is higher than the capacity approved for your supply point. This often happens when you expand your solar PV system or add large appliances. We check your currently approved capacity and tell you whether an increase is needed and how your prosumer application file is updated.

The design covers sizing the system to your consumption and your space, the list of equipment chosen, the single-line diagram of the installation and the technical documentation required by the distribution system operator. For three-phase and commercial systems, the protection settings are added. The installation is carried out and the grid connection file is submitted on that basis.

A single-line diagram shows, on one line, how the panels, inverter, batteries, protection devices and grid connection point are linked together. The distribution system operator asks for it in the technical documentation, to check that the installation can be connected safely. It also helps the electricians during installation and any later work on the system.

A grid-tied (on-grid) system covers your daytime consumption and exports the surplus to the grid, while a hybrid system can store energy in batteries for the evening or for power cuts. The choice depends on your consumption pattern, how much you are at home during the day and your budget. We analyse your bills and recommend the right option.

Batteries are worth it when you use a lot of electricity in the evening or overnight, when you want to use as much of your own energy as possible, or when you need power during outages. If most of your consumption is in the daytime, a system without storage may be enough. We show you both, based on your consumption.

Maintenance means a full check of the installation: a visual inspection of the panels, mounting structure and cables, thermal imaging to detect hot spots, electrical measurements and insulation resistance testing. We also look at the output recorded in the monitoring app. At the end you receive a report with findings and recommendations, so you know exactly what needs doing.

The most common causes are dirt or shading on the panels, loose connections, a faulty panel or string, and incorrect inverter settings. Part of the drop is normal wear over time. With an inspection that includes thermal imaging and electrical measurements, we find out where the loss comes from and what is worth putting right.