• © Filmfabrik Schwaben

Solar Energy

We develop and implement innovative solar technologies

Solar plants make a significant contribution to sustainable, climate-friendly energy generation.

Who we are

Large scale solar power generation offers an interesting scope of work ranging from early concept development to detailed optimization of a standard product.


This area of work is relatively new. Convincing and future-oriented solutions can only be achieved when experts of different specific fields work together.

We meet this challenge with an experienced interdisciplinary team.


We have been developing a wide range of components and systems for solar thermal power plants for over 30 years.


Today we are a leading international engineering office in the field of CSP (Concentrating Solar Power) and well known as experts for the development and design of parabolic trough collectors, point-focusing dish systems, solar tower power plants and heliostats, as well as concentrating photovoltaics.


Sun - ebook               Solar Flyer

Management Board

Markus Balz

Gerhard Weinrebe


Our Scope of Work

Technology Development

design of parabolic through collectors and fields
solar tower power plant concepts(tower, heliostats, heliostat field layout)
design of point-focusing systems: CPV, Dish/Stirling
integration of PV systems in buildings and sports halls
kinematic drive concepts for solar tracking
concentrating systems for chemical high-temperature concepts
energy-efficient building concepts
energy storage technologies (thermal and mechanical)



Solar field engineering

preparation and adaptation of planning documents (drawings, specifications, material lists, etc.)
preparation of the documents required for the building permit
general support with production, assembly and installation (time management, logistics etc.)
static and dynamic calculation and verification


Our tasks during the tender process
general support with tender preparation
technical evaluation of tenders
answering technical queries


Our tasks during production, assembly and installation
general support with production, assembly and installation (time management, logistics etc.)
planning of and consulting regarding the production line on site
engineering supervision of production, assembly and installation

Consultancy for client and owner

technology consultancy on all solar power systems
feasibility studies
independent assessment of technologies and concepts, technical due diligence
calculation of efficiency and solar energy yield
calculation of levelised cost of energy (LCoE)
site search and evaluation, supervision of soil surveys
recording and evaluation of weather data
specification of weather stations
thermodynamic design

Solar collector development

Development of structure, optical concept and drive
supporting structure calculation, dimensioning and optimization
optical evaluation and optimisation (see optical calculation)
techno-economic optimisation analysis and optimization (structure, optics and drive system)
load analysis (based on standards, or statistical analysis of weather data and wind tunnel tests)
safety concepts
development of production and assembly concepts
construction and testing of solar collector prototypes
tender documents preparation
basic evaluation (solar field requirements, target market)
mass and cost calculation
preparation of the documents required for the building permit
hardware and software development for tracking / data acquisition and evaluation (see control technology)
technical support during on-sun testing
evidence of “bankability” of new innovative concepts

Optical calculations

Optical calculation of all line-focusing and point-focusing systems
Form-finding of reflector geometry to optimise solar flux distribution
Flux density and intercept calculation of all systems taking into consideration deformations and imperfections
Multi-stage concentrator systems (re-concentrators)
Evaluation of survey results from deflectometry and photogrammetry, laser scanning, comparison with simulation

Mechanical engineering / drives

Design, calculation, dimensioning and tender for electro-mechanical and hydraulic drives
The same for bearings (sliding and rolling bearings, special solutions)
The same for wheel/rail systems
The same for hydraulic drives and rope drives for bridges and roofs
Costing of different drive systems and options
Commissioning of drives

Project Management

project environment analysis, project planning and task definition
scheduling and control
budget planning and control
project environment analysis, project planning and task definition
scheduling and control
budget planning and control
monitoring of the project targets
quality assurance in planning, production, assembly and commissioning
obtaining building permits (prototypes)
supervision and organization of procurement processes for structural 
detailed engineering
risk management
development and submission of funding applications

Which technologies do we offer?

Heliostats - Stellio

The key to a cost minimized heliostat lies in the definition of the boundary conditions imposed by the solar power plant.

Optical performance, tracking accuracy, rigidity, the angle of rotation, wind loads and construction and operating costs just present a small part of the technical and economical boundary conditions the heliostat has to fulfil.

The heliostat’s technical restrictions or cost targets influence the solar power plant concept, that’s why constant interaction and feed-back arise.

This holistic consideration is the so called techno-economic optimization. 

In this context we develop heliostats, i.e. all the structures and reflectors including drives and control technology, from first design drawings and prototypes to the workshop planning for large fields.   

  • Turm Schema
  • Stellio Beam
  • Beam
  • Stellio
Parabolic Trough collectors

As of today, sbp sonne has developed three different types of parabolic trough collectors. 

The well known EuroTrough collector is applied most frequently.

Solar fields with this collector type, including the three 50 MW plants Andasol I-III, were implemented in Spain multiple times. 

EuroTrough plants are also operating successfully in Egypt and India.


Further developments are the HelioTrough and, most recently, the UltimateTrough collectors. They were developed to further reduce costs and particularly improve performance of large solar fields.


A glance at our moveables website shows more interesting insights into parabolic trough technology and into our current collector development, the Ultimate Trough.

  • Schema Rinne
  • Rinne Detail
  • Rinne Feld
  • Rinne Baustelle
  • Rinne UT © Flabeg Holding Gmbh

Intellectual Property rights

schlaich bergermann partner is the intellectual property right holder of the EuroTrough collector, the UltimateTrough collector as well as the Stellio and offers licenses for them. Of course we also offer extensive technical engineering support for project developers and general contractors. 


Our licenses enable our clients to use the latest and at the same time proven collector technology.

Dish-Stirling Systems

A parabolically curved concentrator, constantly oriented towards the sun, reflects direct solar radiation to its focal point. 

A Stirling engine mounted there transforms the collected heat into rotational energy and finally into electrical power through a generator attached directly to the crankshaft of the motor.

In recent years we have developed, built and extensively tested several prototypes of between 3 and 50 kW per unit. Then first systems were installed and operated in various countries (Spain, France, Germany, Italy, India).The technology is technically mature.

  • Euro Dish
  • Infinia © Infinia Corp.
  • Wuhai
Your contact person:

Markus Balz

Schwabstraße 43
70197 Stuttgart
+49 711 64871-0

Schwabstraße 43
70197 Stuttgart

+49 711 64871-0