Energy future with repowering and KOSTAL

The basis for intelligent energy management

Repowering with KOSTAL and Home Energy Management System

The entry into intelligent energy management for your home

Are you already using your own PV system to become more independent of the power grid? Did you know that there is still a lot of untapped potential in many existing systems? Especially if the inverter is older and not suitable for modern energy management systems.

By repowering - i.e. replacing your old inverter with modern KOSTAL technology - you create the basis for intelligent energy management in your own home. And that means: more self-consumption, lower electricity costs, maximum control - and a future-proof energy system that grows with your requirements.

What is a Home Energy Management System (HEMS)?

A Home Energy Management System (HEMS for short) networks all relevant energy consumers and generators in your household. In addition to the PV system, this also includes the battery storage system, the wallbox for the electric car, a heat pump or a heating element as well as digital electricity meters (smart meters).

A HEMS recognises when and how much solar power is available and distributes it specifically to the consumers in the house. This means that every ray of sunlight is utilised in the best possible way instead of being fed into the grid unused.

More self-consumption. Less electricity costs. Completely automatically.

An intelligent energy management system automatically decides when which device is supplied with solar power - depending on priority and availability.

A few examples from everyday life:

Your wallbox charges your electric car during the day when the sun is shining.
Your heat pump is powered by PV electricity as soon as sufficient energy is available.
Your battery storage system is charged from the grid during low tariff periods and discharged in the morning.

All of this works in the background without you having to do anything. The result: more self-consumption, less grid consumption, lower electricity bills.

Why an old inverter prevents all this

Many PV systems installed between 2010 and 2018 still have inverters that cannot be digitally networked. This means

No communication interfaces for external systems
No integration into smart home or grid control
No data analysis or automated consumption optimisation

Such a device may still function technically - but it blocks the full potential of your PV system.

Repowering creates the technical prerequisites for a HEMS

Modern KOSTAL inverters such as the PLENTICORE G3 have all the interfaces that an intelligent energy system needs:

Ethernet, WLAN, RS485, Modbus & Co.
Compatibility with storage solutions and wallboxes
Connection to smart meter gateways and dynamic electricity tariffs

This makes your PV system not only more efficient, but also grid-compliant and future-proof.

System openness & flexibility: Your system grows with you

A major advantage of KOSTAL technology is its openness. You don't have to commit to one brand or one provider. Instead, you have the choice:

Which storage system suits you?
When will the wallbox be added?
How should your HEMS be controlled (e.g. E.ON, Tibber, beegy)?

This modularity allows you to expand your system step by step - exactly as it suits your everyday life and your budget.

Everything at a glance: The KOSTAL Solar Portal and the KOSTAL Solar App

Switching to modern KOSTAL technology also gives you access to digital tools that make your energy world transparent:

View your generation, consumption and feed-in
Analysis: How much electricity do you generate and use yourself?
Simulation of the "virtual battery": This allows you to see how a real storage system would pay off
Error notification in the event of irregularities

You can track how efficiently your system is working at any time - and make targeted optimisations.

Ready for repowering: KOSTAL PLENTICORE inverters

Utilise dynamic electricity tariffs - with intelligent control

The electricity market is becoming more flexible - and you can benefit from this.

More and more energy suppliers are offering dynamic electricity tariffs where the price changes hourly. Intelligent energy management can utilise these tariffs to, for example:

Charge storage systems specifically during low-price periods
avoid feeding electricity into the grid when the electricity price is low
Use electricity when it makes the most ecological sense

With a repowered, smart system, you can actively utilise these opportunities - and thus not only act more sustainably, but also more economically.

HEMS + storage + wallbox = energy future in your own home

Many customers start with the desire for a battery storage system or a wallbox for their electric car - but then realise that the old inverter does not allow this connection.

Repowering creates the basis for everything to work together:

PV system generates electricity
Storage stores it in a targeted manner
Wallbox charges when there is a surplus
Heat pump heats when it is energetically suitable

A HEMS is the conductor of this orchestra - and a modern KOSTAL inverter is the access to it.

Repowering is the start of your networked energy future

An inverter is the centrepiece of your PV system. And with a modern device from KOSTAL, you can turn it into a real energy centre for your home.

Repowering brings more yield and more possibilities, flexibility and control. And by connecting to a HEMS, you can realise the full potential of your PV system: today, tomorrow and for many years to come.

Have your repowering potential checked now and get started with smart energy management - with KOSTAL.