Our Successes

Telecommunications

A major German telecommunications provider was already supplying 100% of the electricity needs for its
administration facilities with renewable energy. Our task was to help them further reduce their energy
consumption while at the same time drastically lowering their CO2 emissions. Our success is clearly visible
in the yearly savings that we managed to generate for them.

geff Modules applied in this project

visualization+	Complete analysis of the system including actual versus target performance comparisons for the equipment
ventilation+	Conversion to performance-optimized ventilators. Reduced the volume of air flow
cooling+	Conversion to performance-optimized cooling. Adjustment of the room temperature set-points
control+	Demand-response controls for the ventilation and cooling equipment

Results

Power demand before geff (per year)	59.130.000	kWh
Power demand after geff (per year)	19.710.000	kWh
Savings	39.420.000	kWh per year
calculated at 0,1134 Euro/kWh	4.470.228	Euro per year

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Automotive OEM – Ventilation

A large German automobile producer with multiple production facilities throughout Germany operates a many older ventilation systems, which were in desperate need of being optimized for energy efficiency. The challenge in this case, was that the retrofit work had to for the most part take place during ongoing production in the factories, as demand for new cars simply did not allow for production downtime.

geff Modules applied in this project

visualization+	Complete analysis of the system including actual versus target performance comparisons for the equipment
ventilation+	Replacement of obsolete ventilators with 330 new high-efficiency centrifugal fans
	Adjustment of air flow volumes
	Deinstallation of obsolete motors and installation of new high-efficiency motors
control+	Installation of frequency inverters and demand-response controls for the ventilation equipment

Results

Power demand before geff (per year)	106.149.320	kWh
Power demand after geff (per year)	60.985.004	kWh
Savings	45.164.316	kWh per year
calculated at 0,1134 Euro per kWh	5.121.633	Euro per year

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University Hospital

This university hospital treats approximately 700.000 patients each year. Its primary focus is oncology.
Energy efficient ventilation equipment is helping them save an average of 4.012.080 kWh of energy per year.

geff Modules applied in this project

visualization+	Complete analysis of their facility systems
ventilation+	Replacement of 12 obsolete fans with new centrifugal fans equiped with flat-belt drives and high-efficiency motors
	Removal and disposal of unnecessary noise-control baffles
	Exchanged defective air-volume flow controller and exhaust flaps
control+	Installation of- and electric connection work for new frequency inverters
	Demand-optimized control of the ventilation and heat recovery equipment

Results

Power demand before geff (per year)	10.441.920	kWh
Power demand after geff (per year)	6.429.840	kWh
Savings	4.012.080	kWh per year
calculated at 0,1134 Euro/kWh	454.969	Euro per year

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Medical Center

This medical center includes a medical clinic, ambulatory practice, ambulatory rehabilitation unit, and senior living facilities. The multifunctional nature and high patient traffic that this facility deals with on a regular basis present many challenges. Nonetheless, geff was able to help significantly reduce their energy costs.

geff Modules applied in this project

visualization+	Complete analysis of their facility systems
ventilation+	Removal of 8 axial fans and replacement with 8 centrifugal fans equiped with flat-belt drives and high-efficiency motors
	Removal and disposal of unnecessary noise-control baffles (576 units)
	Removal of external air dampers and replacement with 4 section-rolling doors
recovery+	Installation of a highly-efficient combined circulation heat recovery system (including the necessary plumbing work)
control+	Installation of- and electric connection work for new frequency inverters
	Demand-optimized control of the ventilation and heat recovery equipment

Results

Power demand before geff (per year)	8.015.400	kWh
Power demand after geff (per year)	3.784.320	kWh
Savings	4.231.080	kWh per year
calculated at 0,1134 Euro/kWh	479.804	Euro per year

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Production Hall – Equipment Manufacturer

A manufacturer of industrial equipment and robots requested an energy savings analysis for the lighting in one of its production halls as part of the company‘s internal corporate energy savings program. The results of the analysis showed that the existing high-bay lighting in the hall was giving off much less light than the latest new lighting technologies, even though they use the same amount of energy.
geff‘s solution was an intelligent LED high-bay luminaire system with built-in occupancy and daylight sensors and dimmers, which could be mounted on the existing fixtures (at a height of 8 meters) and offered an anti-glare technology with guaranteed maximum energy efficiency at extremely high light output. Additionally, the client is able to monitor and custom-adjust each individual luminaire via a very simple software solution, leading to further savings through the automatic reduction of lighting hours based on occupancy and daylight.

geff Modules applied in this project

visualization+	Audit of the existing lighting system, including analysis of actual versus target performance levels
	Comparison of different technical solutions and brands, followed by a demonstration installation and evaluation.
lighting+	Deinstallation and removal of the existing lighting
	Installation of 77 intelligent LED high bay luminaires (240W)
control+	Evaluation of the new software and follow-up commissioning to set up the various lighting scenarios for availability of daylight and the presence of employees

Results

Power demand before geff (per year)	374.374	kWh
Power demand after geff (per year)	40.841	kWh
Savings	333.533	kWh per year
calculated at 0,18 Euro/kWh	60.036	Euro per year

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Achieving longterm energy cost reductions

In these Sectors

Automotive Industry
Banks and Finance
Construction
Chemical Industry
Data Center
Electronics Industry
Utilities
Research Institutes
Airports
Real Estate
Retail
Clinics
Power Plants
Municipalities
Cosmetics Industry
Food Processing Industry
Logistics
Aerospace
Petroleum Industry
Trade Shows
Optics Manufacturing
Paper Industry
Pharmaceuticals
Broadcast Industry
Swimming Pools
Telecommunications
Universities

Covering these Solution-Areas

Waste-Heat Recovery
Demand Optimization
Lighting Systems
Bioenergy
Compressed Air Systems
Electrical Drives
Energy Management
Electrical Energy
Energy Recovery
Geothermal
Heating Systems
Refrigeration Systems
Ventilation Systems
Mechanical Systems
Monitoring
User Behavior
Process Technology
Control Systems
Solar Energy
Hydroelectricity
Heat
Wind Energy
Efficiency Optimization

Our Successes

Telecommunications

Savings

39.420.000

4.470.228

Download Best Practice Telecommunications

Automotive OEM – Ventilation

Savings

45.164.316

5.121.633

Download Best Practice Automotive

University Hospital

Savings

4.012.080

454.969

Download Best Practice University Hospital

Medical Center

Savings

4.231.080

479.804

Download Best Practice Medical Center

Production Hall – Equipment Manufacturer

Savings

333.533

60.036

Download Best Practice Production Hall

Achieving longterm energy cost reductions

In these Sectors

Covering these Solution-Areas

Together with our Partners for these clients