Ecofective is a fast-growing Swedish-German company that delivers a proven and robust IT-based solution for managing and optimizing the energy balance in properties.

1. Energy and cost savings in existing buildings
Ecofective and its energy management system EE2
Short presentation
Mats Pettersson
Ecofective AB
www.ecofective.com
© 2013

2. About Ecofective
•
Founded in 2009 as a consulting firm, in 2012 expanded by Mats Pettersson and Dirk Uhlemann
to a high-tech supplier of IT-based energy management and energy performance contracting.
•
Highly skilled founder and management team, with more than 20 years of experience in the
development and implementation of IT-based systems for energy efficiency in buildings.
•
Scientifically proven energy management system EE2, currently implemented in more than
120 large multi-tenant and office buildings in Sweden and Germany.
•
Comparative measurements by the Fraunhofer Institute for Building Physics (IBP) recently
confirmed a significantly lower energy consumption by using EE2 from Ecofective*.
•
Presently, Ecofective is continuously growing in Sweden and Germany, an innovative energy
performance contracting model will be available soon.
•
Partner network includes Swedish Energy Agency, KTH Stockholm, Business Sweden,
Stockholm Cleantech Association and IVL Stockholm, Gothenburg.
* IBP Report 523, July 2013, http://www.ecofective.com/images/downloads/in-the-media/2013-07-30-IBP-Report.pdf
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3. Today’s context
Energy and cost savings in existing buildings
Global view
Regional view
Existing buildings
• World
• Country
• IT-based energy-efficiency solution
• EU
• Region
• Between 13 and 25% less heating energy
• City
• Low investment between 1 and 3 €/m2
• 1% of cost of a classical refurbishment
• Rapid repayment in less than 24 months
• Easy installation on top of the existing HVAC
• Comprehensive data pool for future investments
• Energy signature, energy performance contracting
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4. Multitude of influences on a building’s energy footprint
Different time-scales
D. Long-term (years – decades)
A. Immediate (minutes – hours)
Influencing factor:
Compensated by:
Influencing factor:
Compensated by:
Aging of thermally
relevant building
parts
• Structural investments
Outdoor climate
• Radiator flow
temperature
• Thermostat on radiator
Other internal heat
sources
• Thermostat on radiator
User/tenant
behavior
• Thermostat on radiator
Building’s
energy
footprint
C. Mid-term (months – years)
B. Short-term (days – months)
Influencing factor:
Compensated by:
Influencing factor:
Compensated by:
User behaviour
and awareness
• Communication
• Maintenance service
Adjustment of
heating curve
• Maintenance service
Aging of system
components
• Maintenance service
Adjustment of
ventilation plan
• Maintenance service
End-of-life
replacement
• Structural investments
Adjustment of
hydraulic balance
• Maintenance service
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5. EE2 generates added value within all time-scales
Thermodynamic optimization (TDO) as an add-on to the existing control systems
•
Energy savings generated by thermodynamic
optimization (TDO) pays back within a few years
•
Notification when irregular operating conditions
occur
•
•
•
Data stored/made available for analytics
• Mid- and long-term influencing factors
• “Before/after” and “on/off” comparisons
Continuously refreshed energy signature
• Current energy footprint
• Benchmarking with similar buildings
• Indicators for planning/setting targets
Improved base for evaluation processes
• Due diligence
• Refinancing
• Asset valuation
EE2 analytics
TDO engine
Investment
recommendation
Direct impact
Energy
signature,
database
EE2 analytics
EE2 analytics
Investment
recommendation,
maintenance service,
social interfaces
Direct impact,
maintenance
service
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6. Our present service offering for you
How you benefit from thermodynamic optimization (TDO) with EE2
• State-of-the art software for thermodynamic optimization of existing buildings, real-time reporting
and analytic tools, detailed body of data for sound investment decisions
• Up to 25 percent heating energy reduction with 1% of the budget needed for a traditional energy
efficiency refurbishment, which means 1-3 €/m² instead of 200-740 €/m²
• IT-based solution, compatible with existing central building control and HVAC systems (gas, oil,
district heating etc.), irrespective of manufacturer, age or type
Diagram: http://www.ecofective.com/index.php/en/services
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7. Main characteristics of EE2
Low-cost IT-based energy-efficiency solution for existing buildings
• Software for data collection and thermodynamic
optimization
• Off-the-shelf solution for wide use, installation in
less than a day
• Compatible with all kinds of HVAC systems
(gas, oil, district heating)
• Installed on top of the existing central heating
(HVAC) and building control system
• Real-time reporting and analytic tools
(temperature, thermodynamics, forecasting)
• Low-cost IT-based solution making existing
buildings “intelligent“ by using IT
Diagram: http://www.ecofective.com/index.php/en/solutions/technologys
Key Elements of EE2: 1. Wireless Indoor Temperature Sensors, Central Unit; 2. Mini Weather
Station; 3. Climate Chamber including HVAC Sensor Controller; 4. BSU, Building Service Unit;
5. Tunneled VPN; 6. BOC, Building Operations Center; 7. HVAC (Heating, Ventilation and Air
Conditioning); 8. Wired Temperature Sensors
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8. Thermodynamic optimization (TDO) with EE2
Free heating power is used to reduce the amount of purchased energy
1. Building
thermal behavior
2. Continuous
calculation of P free
3. Setting the
flow temperature
4. Continuous
monitoring
• Flow temperature as a
function of P radiator
• Continuous adjustment
of the temperature in the
climate chamber
U
• Building’s heat-loss
coefficient
• Heating system
• Radiator
• Ventilation
• Occupants’ energy
consumption
• Façade characteristics
• Climate factors
• Heating curve of HVAC is
mirrored in EE2
• Setting the outdoor
temperature to match the
desired flow temperature
• Continuous monitoring
of results
• Adaptation to the
thermodynamic model
if necessary
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9. Scientific proof*
Fraunhofer Institute for Building Physics IBP
• Location: Holzkirchen near Munich – outdoor testing
site with two identical buildings
• Project design: Comparative measurements in
two identical single-family buildings, one of them
equipped with the Ecofective system EE2, one
without
• Test time: Mid-January until the end of April 2013
• Test result: 13 percent less gas consumption using
the energy efficiency management system EE2.
Extrapolated for a whole year, the results show a
potential of around 20 percent energy savings due to
thermodynamic optimization with EE2
Energy savings: 13%
*
IBP Mitteilung 523, Juli 2013, http://www.ecofective.com/images/downloads/in-the-media/2013-07-30-IBP-Report-de .
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10. Success stories
Student residence hall
• Location: Frankfurt, Germany
• Type of building: Multi-tenant residential
building for students
• Dwelling space: 4,500 m2
• Investment: 9,000 €, 2 €/m2
• Installation: Less than one day
• Measurements: Since Q4 2012
• Energy consumption: 110 kWh/m2/a without
Ecofective system EE2, 90 kWh/m2/a with
• Results: Savings of 6,000 € per year,
repayment in 18 months
Energy savings: 18.2%
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11. Success stories
Multi-tenant building
• Location: Frankfurt, Germany
• Type of building: Multi-tenant building
• Dwelling space: 9,270 m2
• Investment: 9,000 €, <1 €/m2
• Installation: Less than one day
• Measurements: Since Q4 2012
• Energy consumption: 125 kWh/m2/a without
Ecofective system EE2, 108 kWh/m2/a with
• Results: Savings of 7,000 € per year, repayment
in 16 months
Energy savings: 13.6%
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12. Success stories
Multi-tenant building
• Location: Berlin/Marzahn
• Type of building: Multi-tenant building
• Dwelling space: 8,728 m2
• Investment: 12,600 €, <1.45 €/m2
• Installation: Less than one day
• Measurements: Since Q1 2013
• Energy consumption: 96 kWh/m2/a without
Ecofective system EE2, 74 kWh/m2/a with
• Results: Savings of 9,600 € per year,
repayment in 16 months
Energy savings: 22.9%
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13. Success stories
Multi-tenant building
• Location: South of Stockholm, Sweden
• Type of building: Residential building with 80
apartments, 8 floors
• Dwelling space: 6,200 m2
• Investment: 15,000 €, 2.40 €/m2
• Installation: Less than one day
• Measurements: Since end of 2010
• Energy consumption: 127 kWh/m2/a without
Ecofective system EE2, 111 kWh/m2/a with
• Results: Repayment in 1.7 years, energy
savings amounting to 14% per year
Energy savings: 12.6%
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14. Success stories
Office building
• Location: Uppsala, Sweden
• Type of building: Office building of the
Swedish government, 4 floors
• Dwelling space: 11,894 m2
• Investment: 18,000 €, 1.50 €/m2
• Installation: Less than one day
• Measurements: Since end of 2010
• Energy consumption: 40 kWh/m2/a
heating energy, 35 kWh/m2/a cooling energy
• Results: Repayment: 2.1 years, energy savings
of 14% heating energy and 14% cooling energy
per year
Energy savings: 14%
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15. Challenges & burning issues
Let’s talk about them
• For achievement of the ambitious European energy efficiency goals, there is still a lack of reliable
and precise indicators for identifying changes and deviations in energy performance in existing
buildings. Some reasons:
• There is a huge diversity of legacy HVAC systems (manufacturer, type) limiting or even
hindering cost-efficient integration with automated optimization processes
• A complex and regulated division of roles in the value chains of energy and real estate
management for providing heating to the end-user – all roles having different projections of
risk, opportunity and added-value, making it difficult to allow tenants, for example, to benefit
from energy savings
• Manifold influences on a building’s specific energy performance requiring a multitude of actions
and measures which might have minor effects individually, but collectively become significant
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16. Challenges & burning issues
Let’s talk about them
“How can we refinance our investment in
an energy management system as quickly
as possible?”
“How can we organize the best way that our
tenants can benefit from the achieved energy
savings?”
“How do we solve classical conflicts of interest,
e.g. that our district heating partner wants to sell
as much as possible and we want to continuously
reduce the amount of purchased energy?”
Diagram: http://www.ecofective.com/index.php/en/services
“How can we motivate the government and
the EU to optimize the framework for
energy efficiency projects that are not only
focusing on traditional refurbishment?”
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17. Contact
In Sweden
Ecofective AB
Waterfront Building,
Klarabergsviadukten 63 1tr.
Box 190, SE-101 23 Stockholm
In Germany
Ecofective GmbH
Pasinger Strasse 2
D-82152 Planegg
Mats Pettersson
CEO Ecofective
Mobile: +46 70 626 07 02
Phone (switchboard):+46 8 577 28 30
Fax: + 46 8 692 65 01
eMail: mats.pettersson@ecofective.com
Dirk Uhlemann
CEO Ecofective Germany
Phone: +49 89 212 312 120
Mobile: +49 173 288 89 82
Fax: +49 89 212 312 199
eMail: dirk.uhlemann@ecofective.com
* IBP Mitteilung 523, Juli 2013, http://www.ecofective.com/images/downloads/in-the-media/2013-07-30-IBP-Report-de.pdf
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