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THE SMART READINESS INDICATOR FOR BUILDINGS

REHVA CONFERENCE

14 November 2017, Brussels

stijn.verbeke@energyville.be

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Consortium:

ENER/C3/2016-554

"Support for setting up a Smart Readiness Indicator for

Buildings and related impact assessment”

https://smartreadinessindicator.eu/Website:

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What is ‘smartness’ of a building?

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SMARTNESS

Smartness refers to the capability of a building

or its systems to sense, interpret, communicate

and actively respond in an efficient manner to

the changing conditions, which are introduced

by demands of the building occupant, the

operation of technical building systems or the

external environment (including energy grids).

““

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New paradigms

It is not only about energy efficiency of thebuildings and their subsystems …

but also how these are - Connected to the (energy) grids- Controlled and mutually interacting- Improving the quality of life of occupants- …

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New paradigms … and new products and business models

▪ Load shifting and shedding

▪ Local energy generation

▪ Local energy storage, including vehicle to home / grid

▪ Automatic diagnosis and maintenance prediction

▪ Optimised controllers

▪ ….

▪ And combinations thereoff,

e.g. model predictive control for optimal self-consumption

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Interoperability

as a prerequisite for true smartness without lock-in effects

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The smart readinessindicator

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Smart Readiness Indicator (SRI)

A ‘Smart Readiness Indicator’ (SRI) would give recognition for smarter

building technologies and functionalities which enhance the energy

efficiency and other pertinent performance characteristics of the

building stock. It could be an incentive for the integration of cutting edge

ICT-based solutions for energy efficiency into buildings, which can assist

in creating more healthy and comfortable buildings with a lower energy

use and carbon impact, and facilitate the integration of renewable

energy systems.

““

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Objectives of the SRI study

Technical support to feed decision process:

• Quantify and assess impacts of smart technologies in buildings

• Propose a harmonized methodology to calculate and present SRI of a

building

• Compare policy options by an impact analysis

Commissioned by the EC Directorate-General for Energy

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“Smart readiness” aspects in scope of the study

Readiness to adapt in response to the needs of the occupant and to empower building occupants by taking direct control of their energy consumption and/or generation

e.g. Management of heating system based on

occupancy sensors

e.g. Dashboards displaying current and historical

energy consumption

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“Smart readiness” aspects in scope of the study

Readiness to facilitate maintenance and

efficient operation of the building in a more automated and controlled manner

e.g. Signal when systems need maintenance or

repair;

e.g. use of CO2 sensors to decide when to increase

ventilation

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“Smart readiness” aspects in scope of the study

Readiness to adapt in response to the

situation of the energy grid

e.g. Reduce power consumption when grid demand

is high

e.g. Provide smart electricity grid with data on

available flexibility and future expected consumption

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TASK 3 Stakeholder consultation

TASK 1

‘Catalogue’ of smart ready

services

Compiling servicestaxonomy and related

properties

TASK 2

Definition of smart ready indicator(s)

Develop indicator and teston set of reference

buildings

TASK 4

EU Impact assessment

Building stock analysis(bottom up approach

starting from developingreference buildings)

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Mapping the smart services

SRI INDICATOR

11 DOMAINS

SERVICES each domain: 3 to 17

FUNCTIONALITY LEVELS each service: 2 to 5

IMPACT SCORES 8 impact categories

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Task 1 provisionally defined 10 domains where SR technologies & services may be applied

• Heating

• Domestic Hot Water

• Cooling

• Mechanical ventilation

• Lighting

• Dynamic building envelope

• Energy Generation

• Demand Side Management

• Electric Vehicle Charging

• Monitoring and Control

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Task 1 - Structural view on the concepts used

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Task 1 - For each domain there is an array of services

Table 1. Heating sub-services considered in SRI Task 1

Heating-1 Heat control - demand side

Heating-1a Heat emission control

Heating-1b Emission control for TABS (heating mode)

Heating-1c Control of distribution network hot water temperature (supply or return) - Similar function can be applied to the control of direct electric heating networks

Heating-1d Control of distribution pumps in networks

Heating-1e Intermittent control of emission and/or distribution - One controller can control different rooms/zones having same occupancy patterns

Heating-1f Thermal Energy Storage (TES) for building heating

Heating-1g Building preheating control

Heating-2 Control heat production facilities

Heating-2a Heat generator control (for combustion and district heating)

Heating-2b Heat generator control (for heat pumps)

Heating-2c Sequencing of different heat generators

Heating-2d Heat system control according to external signal (e.g. electricity tariff, gas pricing, load shedding signal etc.)

Heating-2e Heat recovery control (e.g. excess heat from data centres)

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Task 1 - 8 impact fields were provisionally defined

• Energy savings on site

• Flexibility for the grid and storage

• Self generation

• Comfort

• Convenience

• Health

• Maintenance & fault prediction

• Information to occupants

Current scoring is highly tentative

Aim is to assist in selecting the

main services from the current

longlist

Note, this consciously excludes security, fire-safety & emergency lighting functions

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In progress: methodological development

Select smart services to be included

e.g. energy savings, DR capabilities, IEQ, interoperability,…

Determine cardinal or ordinal smartness performance metric and ranking for service functionality levels

e.g. cardinal data or overall ordinal ranking AD cfr. EN 15232

e.g. smart meter available: yes/no…

Values expected for each smartness technical feature to the specific service

e.g. energy savings to be expected from specific type of BACS, based on available standards

Multi-criteria assessment, potentially including weighting into aggregated indicator

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Tentative first glimpse on potential assessment framework to derive an SRI

SRI = A × a + B × b + C × c + D × d + E × e + F × f + G × g + H × h

Where:

▪ A = the impact score (from 0 – 100) for Energy Savings on site

▪ B = the impact score (from 0 – 100) for Flexibility for the grid and storage

▪ C = the impact score (from 0 – 100) for Self-generation

▪ D = the impact score (from 0 – 100) for Comfort

▪ E = the impact score (from 0 – 100) for Convenience

▪ F = the impact score (from 0 – 100) for Health

▪ G = the impact score (from 0 – 100) for Maintenance and health prediction

▪ H = the impact score (from 0 – 100) for Information to occupants

and: a to h are the associated impact weightings

Can also and simultaneously weight scores by domains

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Planning

• Study runs until end of July 2018

• Stakeholder Meetings:

1. 7 June 2017

2. 21 Dec 2017 (on invitation)

3. April 2018 (to be decided)

• Updates on https://smartreadinessindicator.eu/

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Thank you for your attention!