Energy Efficiency and Intelligent Buildings

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					“ Energy Efficiency and Intelligent Buildings ”
CBA conference – Cambridge – May 2006
Jean-Christophe HUTT Innovation & Technology for Energy Efficiency, Services Division

Building a New Electric World

Energy Efficiency, a rising concern
Generation capacities and grids Deregulation Deregulation of both production and supply of gas and electricity (while transmission and distribution remain regulated) implies to build new business models significantly different from traditional ones Huge investment ($16 trillion worldwide) is needed involving an increase in price of both gas and electricity Demand is booming Because of the lack of electricity generation capacity, peak prices are becoming very high and volatile

Energy Efficiency
Policy and environment

Kyoto protocol implementation involves new constraints to be integrated in today’s utility business models

Natural resources (oil & gas) are declining In the consumption regions such as Europe and North America, energy sourcing is becoming crucial and focuses major attention of key energy players

MIT / CBA Conference / May 10, 2006


Energy Efficiency has implications along the complete Energy value chain (1/2)
On the Supply Side
 Optimize T&D infrastructure
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Deploy efficient substation automation Upgrade to smart metering solutions

 Optimize quality and availability of supplied power
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Measure and improve delivered power quality Implement DG in frequently congested areas

 Influence demand consumption
   

Introduce new tariff structures and smart revenue metering Implement AMR Provide customers with accurate and relevant consumption data Establish DR/DSM programs

 Deploy modern IT infrastructure
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High speed telecoms infrastructure Modern Energy Information Systems

MIT / CBA Conference / May 10, 2006


Energy Efficiency has implications along the complete Energy value chain (2/2)
On the Demand Side
 Act on Users
 

Educate people on efficient use of energy Act on business related procedures

 Act on loads
 

Replace, renovate aging loads (lighting, motors, HVAC, …) Implement intelligent load control (variable speed drives, regulation systems, lighting control, ...)

 Optimize quality and availability of on site power
  

Measure and improve on site power quality Implement backup generation Exploit co-generation means

 Optimize supply costs
  

Use the right tariffs according to specific load profile Participate in DR/DSM programs Resell excess power

MIT / CBA Conference / May 10, 2006


Buildings are a major source of demand side energy efficiency
Energy Demand in the EU in 2000

 Buildings consume over 40% of total energy in the EU and US
 Between 12% and 18% by commercial buildings the rest residential.  Implementing the EU Building Directive (22% reduction) could save 40Mtoe (million tons of oil equivalent) by 2020.

Transport 31%

Residential / Commercial 41%

Industry 28%

 Consumption profiles may vary but heating, cooling and lighting are the major energy users in buildings
Retail Buildings 37% Lighting 30% Space Heating 10% Space Cooling 6% Water Heating 17% Other Healthcare Buildings 28% Water Heating 23% Space Heating 16% Lighting 6% Office Equipment 27% Other

 Water heating is a major element for healthcare, lodging, and schools.  Lighting and Space Heating are the major elements for commercial and retail buildings.

MIT / CBA Conference / May 10, 2006


Let’s dream : tomorrow’s energy efficient buildings would have …
 A structure and walls of such insulation performance that only 50

kWh/m2/year would suffice to achieve ideal thermal comfort
 All of its equipment to the optimal energy performance level

(lighting, HVAC, office devices, …)
 Intelligence everywhere that would seamlessly handle energy

usage optimization whilst guaranteeing optimal comfort, a healthy environment and numerous other services (security, assistance to elderly people, …)
 Renewable and non polluting energy sources  The ability to satisfy its own energy needs (thermal and/or electric)

or even contribute excess power to the community (zero/positive energy buildings)
 Users whose behaviors would have evolved towards a reasoned

usage of energy

MIT / CBA Conference / May 10, 2006


Envelope & structure of buildings are very efficient : less than 50 kWh/m2/year are needed for an ideal thermal comfort
New insulation materials: thinner and able to store energy • nano porous silica • phase change materials
balls of paraffin support coating

Effective treatment of thermal bridges (junctions between walls, metallic structures, aluminium frames) : this can yield up to 30% reduction of thermal losses

Highly insulating and active glazing : • Vacuum double glazing : energy loss = 0,5 W/m2/°C – wall equivalent • Thermo chromium : variable heat flow between 20 to 60 %

MIT / CBA Conference / May 10, 2006


Equipment (lighting, HVAC, consumer appliances) are more & more energy efficient
Lighting efficiency with LEDs : from 20 toward 150 lumen / W

Consumer appliances : Appliances complying with the energy performance labels are from 10 to 40% more efficient

Heat pumps : from 20% to 25% of performance increase with speed driven compression motor

MIT / CBA Conference / May 10, 2006


Intelligence is everywhere in buildings : for usages optimization, for comfort, for health, for services

Shutters, lighting, HVAC collaborate to reach global optimization : increase of more than 10 %global energy efficiency

Sensors provide information of air quality (pollution, microbes, …) and smart ventilation insure health

Weather prediction are integrated in control

MIT / CBA Conference / May 10, 2006


Turning the dream into a commercially deployable solution
Examples of available solutions - R&D fields related to Energy Efficiency
Construction & Finance 25%

Operation 50%

 Offering solutions to optimize energy use in existing

buildings and guarantee efficiency over time
 

Alterations 25%


75 % of the life cycle costs of a building are in the operation and alterations of the facility over 25 years. Renovations in existing buildings can yield energy savings of up to 30%. Long term sustainable maintenance offering preventive maintenance can keep those savings in place

 Innovative solutions delivering energy efficiency in

new constructions
   

New concept of integrated power and control building infrastructure with distributed intelligence Innovative lighting solutions based on LED technology Advanced autonomous sensors and actuators Smart integration of local distributed generation means

MIT / CBA Conference / May 10, 2006


Tomorrow's energy efficient buildings will require additional processing power at all levels of its infrastructure
Site engineer Service provider (ASP) Energy management expert Remote access

MV/LV transformer station

Building automation

Maintenance engineer

Main LV switchboard

Main LV Switchboard LV panel

Ultra terminal devices

MIT / CBA Conference / May 10, 2006


“ Energy Efficiency and Intelligent Buildings ”
Thank you for your attention

Building a New Electric World