
Buying strategically
Procurement &
offer comparison
From your consumption profile to the right supply offer. We consider the procurement model, contract term and volume provisions together.
Understand the models
GKM Energy Engineering · Industry & business
We review your company's energy costs – from the technology at your premises to the right electricity and gas procurement strategy.

Geologist (Diplom) · Energy consultant
Understand consumption. Identify opportunities. Support decisions.
Electricity & gasLooking at the full picture of energy costs
Prices change. Contracts continue. And your business needs energy. We bring consumption, market conditions and contract terms together, giving you a clear basis for your next decisions.

Buying strategically
From your consumption profile to the right supply offer. We consider the procurement model, contract term and volume provisions together.
Understand the models
Looking closely
What makes up your bill? We review prices and grid charges, assess contract terms and monitor market developments.
See what we review
Connecting your supply points
Multiple sites need a coordinated approach. Buying as part of a group can also be an option, depending on consumption and participation requirements.
Explore pooled buyingEngineering consultancy · Our shared path
Seven steps in three phases – from understanding your business to ongoing support.
We focus on the areas where savings can make the quickest difference.
Understand · Steps 1 & 2
In the initial consultation, we clarify how your company operates and uses energy: its activities, operating structure, total electricity and gas consumption, load profiles, current procurement model and recent supplier bills.
We assess the potential for on-site generation and energy storage, as well as reducing peak loads. This includes options such as photovoltaics and battery storage, considered in the context of your operations.
Plan · Steps 3 to 5
Exclusively for our existing clients. We assess potential savings through funding. For this step, we work exclusively on a success-fee basis: a percentage of the funding actually received.
We carry out a plausibility check and a detailed review of your grid charges, covering this significant component of your energy costs.
Based on your consumption patterns, we develop an optimised strategic procurement concept. Your energy needs, operating structure and suitable procurement model form the basis.
Support · Steps 6 & 7
We select the supplier best suited to the procurement concept we have developed. Your company's requirements and the corresponding supply and contract terms guide the choice.
We support the supplier switch and transfer of your supply points. Afterwards, we continuously monitor the energy market and help you renew or change your procurement model at a favourable time.
Procurement models, clearly explained
A model starts with your consumption. How much predictability do you need? How flexible are your volumes? And how can on-site generation be taken into account?
We consider these questions together in the strategy consultation. The following models help explain your options.
Explore strategic procurement
A fixed energy price for the agreed supply period. Volume provisions, the contract term and other billing components are considered separately.
The price follows the short-term wholesale market and can rise or fall. Your consumption profile and how you manage these fluctuations are key.
Portions of your energy volume are purchased at different times. Secured and variable volumes, together with on-site generation, can be combined in one strategy.
A longer-term agreement to buy electricity from a generation facility, such as wind or solar. The contract term, generation profile and remaining electricity needs must fit together.
Several companies pool their demand. Unlike combining your own supply points, this requires reviewing shared participation terms, individual volumes and flexibility.
Which solution is available and suitable depends on the supplier, your consumption profile and the specific contract terms. We consider the energy price alongside the other cost components.
The person behind the strategy
Geologist (Diplom) · Entrepreneur · Energy consultant
Technical expertise and entrepreneurial experience: Ulrich Roos combines energy consultancy, project development and the perspective of a long-standing technical expert.
Since 2011, energy consultancy and renewable energy have been a focus of his independent business activities.
Current activities and earlier roles from his published biography. Several responsibilities overlapped.
Specialist consultancy and project development for large projects and businesses.
Accreditation and approval as an inspection body and technical expert for the Bavarian Ministry of the Environment during the stated period.
Teaching and lecturing in geosciences at Julius Maximilians University of Würzburg.
Organising and running technical expert symposia, as well as delivering lectures.
Founding, managing and developing an engineering consultancy specialising in geoscientific expert services.
Managing projects and a department working on contaminated-site and landfill projects.
Diplom degree in geology from Julius Maximilians University of Würzburg.
A business is more than its energy consumption. Ulrich Roos brings experience in geosciences, technical expert work, business management and major project development. His project experience reaches back to the 1980s.
Since 2011, energy consultancy and renewable energy have been a focus of his independent activities. His career spans founding an engineering consultancy, teaching, expert assessments and strategic energy procurement.
Areas of expertise from Ulrich Roos's professional career.
Renewable energy project development and concepts for sustainable generation and use. This includes solar, wind and hydropower, as well as solutions for implementing on-site generation without an equity investment.
Geology, geotechnics, contaminated sites, landfill engineering, hydrogeology, demolition, contaminant investigations and waste disposal. Over more than three decades, several thousand projects were undertaken across Germany and neighbouring countries, including complex and demanding assignments.
Planning, delivering and monitoring large projects. The focus is on clear project objectives, collaboration between multidisciplinary teams, established standards and early consideration of risk, quality and schedules.
Technical expert services, court reports and further training for experts. This also includes examination committee work for expert approvals, contributions to relevant federal laws and subordinate technical regulations commissioned by the Bavarian state authority (LfUG).
The respective periods of activity and approval are listed in the career section.
Building on energy efficiency and on-site energy potential: analysing energy purchasing for businesses. Consumption, operating conditions and market analysis provide the basis for individual, strategically planned procurement models and energy tariffs.
Lectures and keynotes at training courses and specialist events. Topics include landfill construction and site selection, contaminated-site assessment and expert reporting, energy projects, energy-use plans, energy concepts and hydrogeological issues.
Experience gained from managing the engineering consultancy he founded, other businesses, technical expert assignments and major project development.
Professional information and references based on Ulrich Roos's published profile. View the original biography ↗
References from Ulrich Roos's professional career
Public-sector clients, business clients and partners. An insight into Ulrich Roos's reference list.
Siemens AG
City of Hamburg34 organisations from Ulrich Roos's professional career
Siemens AG
City of Würzburg
City of Hamburg
City of Gemünden
City of Hanau
Main-Spessart District Administration
Miltenberg District Administration
Würzburg Water Management Office
Aschaffenburg Water Management Office
Deggendorf Water Management Office
Munich Water Management Office
Government of Lower Franconia
Government of Middle Franconia
Würzburg Public Building Authority
Bamberg Public Building Authority
Schweinfurt Public Building Authority
Aschaffenburg Public Building AuthorityReference information: Ulrich Roos · Professional profile ↗
The people behind GKM Energy Engineering
Ulrich Roos leads your energy consultancy. He is supported by specialists in consumption analysis, energy technology and funding, with clear responsibilities and a shared view of your business.

Your personal contact
Geologist (Diplom) · Energy consultant
Energy consultancy & strategy
Experience that considers your business as a whole. Ulrich Roos leads the consultancy from the initial conversation to the right procurement strategy, bringing the team's findings together.
Specialist expertise. Clear points of contact.

Energy analysis
Head of Energy Analysis & Energy Efficiency
Understanding consumption, assessing load profiles and identifying savings potential.
Profile & responsibilities
Energy technology
Project Manager, Energy Technology & Funding
Bringing photovoltaics, storage and technical projects together on a sound economic basis.
Profile & responsibilities
Funding & sustainability
Head of Funding Management & Sustainability
Reviewing funding opportunities for existing clients and supporting sustainable energy concepts.
Profile & responsibilities
Management
Managing Director · GKM Strom und Gas GmbH
Personal responsibility for GKM and its collaboration with your business.
Profile & responsibilitiesFrom consumption profiles and technical potential to procurement: our areas of expertise work together. Ulrich Roos remains your personal contact.
Before our first conversation
Your annual electricity and gas consumption, available load profiles, current supply contracts and supplier bills are helpful. We also discuss your activities and operating structure. We clarify the documents needed together.
Industrial and commercial businesses, including companies with multiple sites. In the initial consultation, we assess how our approach fits your business based on its consumption structure and requirements.
Yes. We record total electricity and gas consumption and consider it in the context of your operations, technical potential and procurement.
We support the transfer of supply points, monitor the energy market and help with renewals or a change of procurement model at a favourable time.
The first step is a conversation
Tell us what is on your mind.
We will review your energy situation together.
Find us atEdisonstraße 4
85716 Unterschleißheim