Photovoltaics from a single source.
Planning, installation & service.
We realize PV systems for private, commercial and agricultural applications
– from consulting to commissioning & service.
Throughout Germany.
95+ projects
For private, commercial & agricultural use
120+ MW
PV power implemented in own projects
10+ years
Many years of experience, satisfied customers
Well advised. Precisely planned. Cleanly built.
With JT Solarbau, you get everything from a single source:
Personal advice, precise planning and clean execution – fast, transparent and reliable.
Consulting
We will be happy to answer your individual questions about your solar system in a free consultation.
For example, is a solar system worthwhile for you? Is your roof suitable for a PV system? We help transparently!
Planning
Planning a photovoltaic system is a comprehensive matter.
With us, you have a long-standing, experienced partner at your side who will personally guide you through the entire planning process.
Construction
From the results of the solar calculation on site to the commissioning of your system -
JT Solarbau implements your PV system and stands by your side with expertise, experience, reliability & maximum transparency.
References & customer testimonials

Commercial building, Mecklenburg-Western Pomerania
- 750 kWp

Agriculture, Kriftel
- 500 kWp

Eggers Herzogentum Lauenburg photovoltaic system
- 1,185 kWp
"Competent, reliable, friendly and uncomplicated. We feel we received excellent advice and are very impressed with the solar system supplied. It's nice to see that there are still companies out there that know what they're talking about! Thanks to Mr. Pastor and his colleagues, a clear recommendation across the board!"
- H. W. Schmitz
"We have been the satisfied owners of a PV system for 2 months now. We would like to thank Mr. Pastor, JT Solarbau Frechen, once again for his expert advice and excellent installation work."
- G. Roucher-Lembert
"Our system has been running smoothly since 2018 and we are very satisfied with JT!"
- U. Meierhoff
How your project works

Free initial consultation
Clarify objectives, record data, rough assessment.

Technical planning & offer
Design, yield forecast, fixed price offer.

Assembly & commissioning
Safe installation, electrical acceptance, registration.

Handover & monitoring
App/portal, instruction, service packages as required.
JT Solarbau GmbH
- Your experienced partner for PV systems
Complete service
Planning, materials, installation, registration & commissioning - all from a single source.
Own specialist team
Qualified electrics & roof installation - clean, safe, on schedule.
Quality of the components
Proven modules, inverters & storage systems from leading manufacturers.
Transparent offers
Comprehensible calculation, no hidden costs.

PROSOLTEC
Frequently asked questions (FAQ)
How long does it take from request to commissioning?
From signed order confirmation to commissioning usually [X-Y months], depending on network operator & material availability.
Which roof types are suitable?
Almost all – tile, sheet metal, flat roof with elevation. We check the statics, fastening and penetrations in advance.
Is a storage unit worthwhile?
For typical households, a storage system significantly increases the self-consumption rate. We calculate this transparently for your case.
Do you take care of registration & network operators?
Yes, we take care of registration, meter replacement coordination and commissioning protocols.
Are there any subsidies?
Yes, depending on the municipality/state/program. We provide advice and take requirements into account in the planning. (We do not offer legal/tax advice, but are happy to put you in touch with consultants).
We will be happy to answer any questions personally.
Your contact person: Thomas Kubitzek
I will be happy to accompany you from the first check through to operation – with clear documentation and honest answers.