Case study · GorkyCAD Pro
Electrical project for a 150 m² house with solar
A 40-seat café with a professional kitchen, refrigeration equipment and emergency lighting requirements.
📊 Project specifications
| Type House | Area 150 m² |
| Phases Three-phase (380 V) | Calculated load 18 kW |
| Groups 24 | Solar 6 kWp |
| EV charger 7 kW | Design time 3 evenings |
🎯 Task
Design power supply for a country house: TN-C-S input, distribute 24 groups across phases, integrate solar panels with a hybrid inverter and an EV charger.
💡 Solution
Load calculation with demand factors, phase balancing to 8/8/8 groups. Solar inverter with battery on a dedicated circuit, EV charger with load management. Input panel with fire RCD 300 mA and SPD Type 2.
- Kitchen split into dedicated groups with 30% power reserve.
- Emergency lighting on a separate line.
- Main breaker and RCD selected by calculated current.
- PDF set handed over for approval.
✅ Result
The project is ready for the network organization and installation: SLD, layout plan, specification, cable schedule, panel passport with QR. The solar metering node is coordinated with the network owner.
FAQ
How much electrical work does a café need?
For a 100–150 m² café, typical calculated load is 30–40 kW with a three-phase supply.
Is emergency lighting required?
Yes, for food service venues emergency lighting is mandatory and designed on a separate line.
Can I design without experience?
Yes, GorkyCAD Pro calculates loads, cables and breakers automatically per regulations.