One central connection, smartly controlled

Solar panels + Heat pump + Battery + Charging plaza = One smart system

Rooftop solar panels

Own solar power

Central heat pump with buffer tank

Heats the building and provides domestic hot water

Central battery (outdoor)

Shaves demand peaks

Resident charging plaza

Smart charging within limits

Energy Management System (EMS)

Controls on price, solar and grid limits

Main grid connection (max. 3x80A)

One connection for all shared installations

Delivery station with heat meter

In every apartment

Individual meter per apartment

Own connection and energy supplier

Illustration is indicative; final design follows in the engineering phase.

How the system works

1. Control on price, solar and grid limit

The EMS always selects the most favorable power source, within the connection's limit.

2. Heat and battery as buffer

With sunshine or low prices, the heat pump stores heat in the buffer tank and charges the battery. During the evening peak, the buffer and battery supply energy.

3. Charging within the limit

The EMS distributes power across the charging points; the battery absorbs demand peaks.

Energy flows

Solar energy

Heat

Battery

Charging plaza

Grid connection

The concept explained

What it means, what we formalize, and what the next step is

What does this mean for you as a resident?

Heat: each apartment gets a delivery station with its own heat meter. You pay for your own consumption plus a fixed part for maintenance and replacement.

Electricity: your own grid connection and energy supplier remain unchanged.

Charging: on private premises, billed per kWh with your own charge card.

Comfort: control operates within fixed comfort limits; priority charging remains possible at a higher rate.

Why this works

No private grid needed: all shared installations operate behind one standard building connection.

Heat measured per apartment with an individual heat meter.

Battery located outside near the parking lot, designed according to PGS 37-1 safety standards.

What do we formalize?

–

Deed of division and regulations: ownership and management of the heat pump, battery, charging plaza, and EMS, plus heat metering and cost allocation per apartment.

–

Main connection maximum 3x80A: no large-consumer status, no grid waiting list. We determine the exact connection capacity together with the installer and grid operator.

Preferred concept & alternative

This is our preferred concept, subject to financial calculation. Alternative: one heat pump per apartment — simpler, but without centralized control. We will calculate both variants during the design phase.

Next steps

1. Select heat concept with architect and installer

2. Calculate both variants: investment, annual costs per apartment, and connection capacity

3. Formalize agreements in the deed of division and regulations

This concept advice is prepared free of charge and independently by Trust Energy. Author Yongli Chang is also the founder of BessQ B.V.; you are free to choose any supplier for execution, including BessQ, via an open tender. Provided without obligation; no rights can be derived from this document.