The Local PV Integration uses power data measured on‑site to react in real time to the actual PV generation available.
This allows solar power to be directly used for charging electric vehicles (EVs) and offers two operational modes to choose from: Standard PV Integration and PV Surplus Charging.
Prerequisites for Local PV Integration
To activate Local PV Integration, the following conditions must be met:
The reev EMS with dynamic load management is active at the site.
A power meter and a Teltonika Router (reev EMS Gateway) are installed.
The meter measures either at the grid connection point or records:
Building load
PV production
Direct integration with PV inverters is not required.
A direct PV production measurement is not necessary.
Operating modes within Local PV Integration
Standard PV Integration
The site’s grid connection limit dynamically adapts. When PV generation increases, more charging power becomes available for EVs – represented as a reduced building consumption load.PV Surplus Charging
Charging takes place exclusively when there is a surplus of generated solar energy. If the PV output is too low, charging sessions automatically pause.
Visualization and control
Once activated, Local PV Integration is displayed in the Live Monitoring view on the reev Platform. From there, you can easily switch between operating modes:
PV + Grid Power: combined use of PV and grid electricity.
PV only: charging exclusively with PV surplus.
When PV + Grid is selected, reev EMS uses both solar and grid power to supply the building and charging points. Switching to PV only displays the PV surplus in the charging curve and reflects it in the live KPIs. The reev EMS allocates exactly the available PV surplus to the charging points, ensuring that this value is never exceeded.
In the EMS overview, two new key performance indicators (KPIs) are also available to monitor the efficiency of your PV integration:
PV Generation & Utilization
Self‑consumption rate during charging