Eedal presentation energy service efficiency

A Review of the Concept of

Energy Service Efficiencyas a Metric for Assessing the Provision of Energy Services in Residential Buildings

Erica Marshall (Rici)University of Leeds

Doctoral Training Centre in Low Carbon Technologies

2

□ Definition of Energy Services

□ Motivation for this work

□ Residential Energy Services

□ Energy Service Efficiency

□ Application to Building Energy Performance Models

□ Discussion

Structure

2 Energy Service Efficiency : Erica Marshall

Coca-cola Drinks Services


Energy Services

YG

RENE


Energy Services

YG

RENE


a comfortable thermal environment

the illumination of a work space

clean clothes

warm meals

mobility for people and goods

tables, and other real things

'Energy services are the benefits that energy carriers produce for human well being' (Modi et al. 2005)

'Energy demand, paradoxically, is not driven by a demand for energy itself, but rather by a demand for energy services' (Steinberger et al. 2009) 'Energy services are important building blocks in

forming a lifestyle to provide welfare.' (Norgard 2000)

6

□ Energy Service Companies (ESCOs) and Energy Performance Contracting (EPC) approach

Question: how could you better shift back to selling services?

Questions identified: how do we measure service delivery?how do we compare negative impacts?

Further interesting Question: how do we make lowest impact option financially viable?

Motivation


Selling energy services

Making energy efficiency affordable

7

□ Energy Service Companies (ESCOs) and Energy Performance Contracting (EPC) approach

Question: how could you better shift back to selling services?

Questions identified: how do we measure service delivery?how do we compare negative impacts?

Further interesting Question: how do we make lowest impact option financially viable?

Motivation


Selling energy services

Making energy efficiency affordable

8

Residential Energy Services


Primary Energy Secondary Energy Final Energy

9

Residential Energy Services

Final energyElectricity

GasDiesel

Conversion DeviceBoiler

Light filament

Useful EnergyHeat

MotionLight

Low Grade Heat

Energy Services

Passive System


10

Energy Service Efficiency Metric

I often say that when you can measure what you are speaking about, and express it in numbers,

you know something about it; but when you cannot measure it, when you cannot express it in

numbers, your knowledge is of a meagre and unsatisfactory kind; it may be the beginning of

knowledge, but you have scarcely in your thoughts advanced to the state of Science,

whatever the matter may be." - Lord Kelvin

Energy Input

Delivered Energy ServiceEnergy Service

Energy Intensity=

Energy InputDelivered Energy ServiceEnergy Service

Efficiency=


11


Energy Input


Energy Intensity=

Energy Services

Considerations:□ Energy Chain□ Full Life Cycle□ Type of Input


12


Energy Input


Energy Intensity=

kg food cookedLitre chilled space

m2 floor areaLitre hot waterm2 cleaned area

kg clothing

m2 illuminated areaLumens

BytesHour of operation


Current metrics of services

'to keep the occupants of the

house adequately fed and watered'

'to have spaces of the house at a comfortable

temperature and condition when

occupied'

'to maintain the occupants of the

house, possessions and the house itself at an adequate level

of cleanliness and hygiene'

'to have the space of the house at a sufficient level of

illumination for the task undertaken when occupied'

'to enable the occupants to spend

their leisure time in a way which

they find enjoyable'

Qualitative descriptions of services

13

Building Energy Service Performance Models


Building DesignWhat is the best system of technologies, design and control ……for delivering energy service in a certain building?(new or retrofit)

Building Energy PerformanceIf energy service are what people demand……could we rate buildings according to the delivery of services?

14

• We need to have a demand side focus and services are the key demand

• Energy Service Efficiency metric would be valuable

• Modelling requires quantitative inputs and outputs which has always been difficult for energy services and easier for supply side accounting

• Improve potential for alternative business models where more profit can be made from less energy use and less negative impact

• Optimise whole system and not just each link

Conclusion


15

Any questions, recommendations,

points for discussion?

Erica Marshall (Rici)

[email protected]

#RiciMarshall

Thank You


16

References


Modi, V., S. McDade, D. Lallement, and J. Saghir. (2006). Energy and the Millennium Development Goals. New York: Energy Sector Management Assistance Programme, United Nations Development Programme, UN Millennium Project, and World Bank.

Steinberger et al. (2009). Profiting from negawatts: Reducing absolute consumption and emissions through a performance-based energy economy. Energy Policy, 36(1), 361-370.

Nørgård, J.S. (2000). Models of energy saving systems: the battlefield of environmental planning. International Journal of Global Energy Issues, 13, 102-122

Cullen, J.M. & Allwood, J.M. (2010). The efficient use of energy: Tracing the global flow of energy from fuel to service. Energy Policy, 38(1) 75-81.

Haas, R. et al. (2008). Towards sustainability of energy systems: A primer on how to apply the concept of energy services to identify necessary trends and policies. Energy Policy, 36(11) 4012-4021.

Jonsson, D.K. et al. (2011). Energy at your service: highlighting energy usage systems in the context of energy efficiency analysis. Energy Efficiency, 4(3) 355-369.

Many more references in accompanying paperPictures:National Coal Mining Museum - a pen drawing painting by John W ... www.jwjonline.netMore Drilling Won't Lower Gas Prices: Soaring Domestic Production ...livinggreenmag.comWatercolour sketch of Eggborough power station cooling towerscambridgeartacademy.comCarmarthen Artist: April 2011carmarthenartist.blogspot.comclimatewww.climateandfuel.comWind: Sunset Wind | Marie Wise, Fine Artistwww.mariewise.com Solar Panel House Stock Vector Illustration And Royalty Free Solar ...www.123rf.com -Water | Home Improvement Information | Find Home Improvement ...www.homeimprovement411.org

Probing Question: What heats the earth's core?phys.org http://images.fineartamerica.com/images-medium-large/prettyboy-dam-john-d-benson.jpgTrimble - Oil, Gas and Chemical - Transportationwww.trimble.com -Igorij's "Sketch and Line Art (Clip-art)" set on Shutterstockwww.shutterstock.comsmall and heartfelt: April 2009smallandheartfelt.blogspot.com -Wooden-Toys-Direct - KidKraft, kinder kuche, puppenhaus, Kidkraft Puppenhaus, KidKraft Kinder Kuchewooden-toys-direct.co.ukandrea joseph's sketchblog: June 2011andreajoseph24.blogspot.comDIY Kitchenette - A Beautiful Messwww.abeautifulmess.com Drawing | Wild Yorkshireblog.wildyorkshire.co.uk Debbie Miller Painting: January 2009debbiemillerpainting.blogspot.com

• When considering energy system, we need to have a demand side focus and services are the key demand

• As the concept of Energy Services becomes mainstream, we need to have a common understanding of what it means

• We need to ensure we have a thorough understanding of how technologies contribute to delivering energy services

• Modelling requires quantitative inputs and outputs which has always been difficult for energy services and easier for supply side accounting

• Energy Service Efficiency metric would be valuable for this

Conclusion


Eedal presentation energy service efficiency

Technology

Transcript of Eedal presentation energy service efficiency