Phone +49 173 326 04 03 [email protected] Morlautererstr. 23 · 67731 Otterbach
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Services · Solar & energy

Solar, battery, heat pump and EV charger – designed as one system, built and registered by one company.

Solar PV with battery storage, heat pumps with KfW grant paperwork, EV charging – design, electrical work, grid registration and grant handling from one source.

A PV system, a heat pump and an EV charger are quickly sold individually. Together they only work if meter cabinet, load management, battery and controls are matched. As a registered electrical contractor we design the complete system – and build it ourselves instead of calling in a separate electrician.

For heat pumps we are listed as a specialist contractor with the German energy agency dena and handle the KfW grant (programme 458) with the confirmation before application and after completion. Grid operator registration, market master data register, commissioning notice: all included.

Scope

What we do in energy technology

Solar PV

  • Roof, garage and carport systems, flat and pitched roofs
  • Single and three-phase inverters, backup and emergency power functions
  • Off-grid systems without a grid connection

Battery storage

  • Battery systems matched to consumption and PV output
  • Retrofit to existing systems
  • High-voltage qualification for work on battery systems

Heat pumps

  • Air-to-water heat pumps in existing and new buildings
  • KfW 458 grant: confirmation before and after, dena contractor certificate
  • Electrical connection, meter cabinet, grid operator registration

EV charging

  • 11/22 kW wall boxes, load management, solar surplus charging
  • Apartment buildings and company car parks
  • Registration or approval by the grid operator

Self-consumption

  • Solar surplus control for heating elements, heat pumps and EV chargers
  • Energy management and smart home integration
  • Monitoring and reporting

Registration and grants

  • Grid connection application, commissioning, market master data register
  • Grant applications and proofs
  • Hand-over with complete system documentation

Why the meter cabinet decides

Many quotes for PV or heat pumps stop at the house connection. Whether the system is allowed on the grid is decided by the meter cabinet: space for additional meters, controllability under section 14a of the German Energy Act, protection, surge protection. We survey that before the quote, not after.

How it works

How an energy project runs with us

Consumption and building

Electricity use, heating load, roof areas, meter cabinet – we record everything in one visit.

System design

PV output, battery size, heat pump, EV charger as one matched system with a payback calculation.

Applications

Grid operator, KfW, market master data register – we file the applications before building starts.

Installation and commissioning

Mounting, electrical work, commissioning, training, proofs for the grant.

References

Projects in this field

A selection. Private customers are listed without names; contact persons for project references on request.

HomeownersFamily homes in the Kaiserslautern district

PV on garage and carport with battery, EV charger and video intercom as one package.

HomeownersHouse in the Donnersberg district

Air-to-water heat pump with KfW 458 grant handling, EV charger and three-phase inverter.

HomeownersHouse in the Western Palatinate

Solar surplus control for heating element and battery.

AgricultureHorse stable in Mehlbach

Off-grid PV system with hybrid inverter and lithium battery.

FAQ

What customers ask us about solar & energy

Is a battery worth it?

For typical households with 4–10 kWp a battery raises self-consumption from about 30 to 60–70 percent. Whether it pays off depends on the electricity price and consumption profile – we calculate it with your figures.

How does the KfW heat pump grant work?

We issue the confirmation before application (BzA), you apply in the KfW portal, after installation we deliver the confirmation after completion (BnD). Important: apply before placing the order, or order with a condition precedent.

Who registers the system?

We do – as a registered contractor with the grid operator, plus the market master data register. You receive the confirmations in your system folder.

Can I charge my car with solar power?

Yes, with surplus charging via an energy management system. We match wall box, inverter and battery for that.

Tell us what you need.

Reply within one business day – with an honest assessment. English-speaking contact.