CO2-free factory Sustainability that pays off

CO2-free cities and municipalities We are working on the future

Your consulting engineers Over 30 years of experience

Design and planning Progress through innovation

Technical equipment For your demanding construction projects

IPH Selzer Ingenieure GmbH Experience know-how and passion

IPH Selzer is an internationally operating company, independent of the market, which offers individual, innovative, technical solutions in the field of resource and energy efficiency and sustainability, combined with the goal of maximum energy and CO2 savings.

Due to our orientation as an engineering office for technical building equipment, solutions developed by us can be accompanied, planned and implemented from the very beginning, which makes us a leading provider in the field of energy optimization and strategy development in the industry.  
Our strengths lie in the planning of CO2-free factories and CO2-free cities.

Achieving energy with high (cost-) efficiency, comfort and quality at the same time requires new complex thinking, new ways of working and new fields of activity. We are equipped for this.  
Let us convince you of our range of services! 

CO2-free factory

We analyze (Scope 1,2,3), reduce, avoid, recover your energy and show you the way to a crisis-proof CO2-neutral energy supply.

BSE

Our engineers implement the potential from the overall energy optimization for you. 
We plan, tender and monitor your construction projects.

Strategy development

We leverage energy potential that can make a city, a factory, a clinic or an entire company climate-neutral.

Industrial process technology

We analyze your processes from an overall energy perspective and plan individual, sustainable solutions tailored to your production.

CO2-free cities, neighborhoods & municipalities

Which interplay of regenerative technologies enables CO2-free cities and districts? Heat planning and transformation planning. You've come to the right place!

Subsidies

to achieve your goals and for the good of society for sustainable climate protection.

Latest projects

Neighborhood concepts

Neighborhood development and planning Kirschberg neighborhood Weimar Errichtung von 288 Mietwohnungen und 115 Eigentumswohnungen mit Tiefgarage und Heizzentrale

Planning/ execution period 12/2018 – 02/2022
ClientBPD…
Innovative Projects

Energy concept for the Oberhof sports facilities

Planning/execution period 2017-2020
ClientZweckverband Thüringer…
Hotels

Construction supervision Hotel Schillerhof

Planning/ execution period 01/2021 to 04/2022
Property addressSchillers…

Trade fairs & events Meet us here

bis 12.02.2026

E-world energy & water 2026

The year 2026 will kick off with another highlight in February – E-world 2026 – from February 10 to…
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News IPH News

Successful second network meeting of the 1st network for municipal heat planning and heating technologies

On December 1, the second network meeting of the first Municipal Heat Planning & Heat Technologies Network Thuringia was once again successfully held…

Successful passing of the exam to become an innovation manager for energy systems

We congratulate our colleague Fritz Spukti on passing his exam to become an innovation manager for energy systems.With this qualification, we can now…

International impetus for the heating transition – visit to the District Heating Summit in Denmark

From October 27 to 28, our colleague Eric Störlein took part in the International District Heating Summit 2025 in Denmark.Our neighboring country…
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