Solar power straight into the EV
Solar surplus charging increases self-consumption and directs locally generated electricity into mobility.
EV charging & wallbox
Charge your EV with solar power, intelligently controlled.
PHT connects the wallbox, electric car, solar PV, battery storage and building loads in a safe, clear charging solution.
WallboxSolar surplus chargingLoad managementExpandable charging infrastructure
Quick answer
A wallbox must suit more than the electric car: the building connection, required charging power, solar PV and other large loads must be considered together. PHT plans and installs EV chargers in Pfäffikon SZ, Schwyz, Höfe and March, around Lake Zurich and in Glarus.
EV charging & wallbox
What this solution delivers
Connection capacity checked
The building connection, distribution board, protection, cable route and required charging power are assessed before installation.
Avoid load peaks
Dynamic load management coordinates the EV, heat pump, battery and other loads with the available capacity.
Ready to expand
Communication, physical space and electrical capacity can be prepared for additional chargers or a second EV.
Process
From the first photograph to a working installation.
Define charging needs
Record the vehicle, daily distance, parking duration, charging location and preferred operation.
Assess the building
Check the grid connection, main distribution board, cable route, solar system and other large loads.
Select the wallbox
Set the charging power, interfaces, access, billing and solar or load management requirements.
Install & configure
Install, test and notify the charging point, then hand over understandable charging priorities.
EV charging & wallbox
Which EV charging solution fits the building?
11 kW is often enough
The key is not the largest number but whether the vehicle receives the energy it needs during its normal parking time.
Solar charging needs communication
For solar-optimised charging, the wallbox, energy metering and control system must be compatible and respect minimum charging power.
Multiple chargers require a concept
Apartment buildings and companies need coordinated base infrastructure, load management, access rights, metering and billing.
E-mobility · Regional
Wallbox installation in Schwyz, Pfäffikon SZ, Lake Zurich & Glarus
PHT plans EV charging for detached homes, apartment buildings and smaller company car parks. The focus is safe electrical installation, solar surplus charging, intelligent load management and a clear expansion path for more electric vehicles.
- Wallbox Pfäffikon SZ & Freienbach
- EV charger Wollerau & Lachen
- Electric car charging Schwyz & Einsiedeln
- Solar EV charging around Lake Zurich
- Charging infrastructure Glarus
Frequently asked questions
Frequently asked questions
What charging power does my wallbox need?
It depends on the vehicle, daily distance, parking time and building connection. For many homes, a properly controlled 11 kW wallbox is more useful than the maximum possible power.
Can the EV charge only from solar PV?
With a compatible wallbox and energy management system, charging can follow the available solar surplus. For reliable mobility, a selectable mix of solar and grid power is usually more practical.
Must an EV charger be notified to the grid operator?
EV charging infrastructure is subject to notification in Switzerland. PHT checks the local grid operator requirements and coordinates the required documents.
Can a second wallbox be added later?
Yes, if capacity reserve, cable routing, communication and load management are considered from the start. Prepared base infrastructure reduces later conversion work.
Does PHT install wallboxes in Pfäffikon SZ and Schwyz?
PHT serves projects in Pfäffikon SZ, Freienbach, Wollerau, Lachen, Schwyz, around Lake Zurich and in Glarus, beginning with the building connection, cable route and required charging functions.
Sources and data date
- Energy Switzerland – Home charging and intelligent charging infrastructure
- ESTI Directive No. 221 – Notification duties for electrical installations
Updated: 26.08.2026. Requirements and technical conditions are checked for each project before implementation.
Related content
Related content
Have your wallbox and solar charging checked
Send the location, vehicle model, required charging power and photos of the parking space, meter cabinet and possible cable route. PHT will assess the suitable solution.