Heat Pumps in EPB. Kathleen De Kerpel October 10, 2018

Transcription

1 Heat Pumps in EPB Kathleen De Kerpel October 10, 2018

2 General: EPB database Since 2006 obligatory EPB-report for: New buildings and renovations with planning permission Residential and certain non-residential buildings Total amount of files reports since 2006 > Data on building envelope and installations Overview evolutions in annual report 2

3 Heat pumps in EPB database Limitations database: Average time between planning permission and finish at least 2 years Not all data is known for each project: Depends on type of building, project and year of planning permission Not all heat pumps are registered in the database Industrial, agricultural and specific non-residential buildings 3

4 Factors influencing amount HP in EPB Calculation method for HP in EPB Before 2016: Fixed efficiency for domestic hot water (DHO) Efficiency based on corrected COP for space heating Recent changes to the EPB-method allow for a more detailed calculation of HP: Since 2016 efficiency based on Ecodesign data for DHO Since 2017 effect of back-up heater on calculation altered Since 2018 efficiency based on Ecodesign data for space heating 4

5 Factors influencing amount HP in EPB Mandatory amount of renewable energy (since 2014) For new buildings and extensive renovations (since 2018) With solar water heater, photovoltaic solar panels, biomass, heat pump, district heating or participation in RE project Additional quality requirements Specific requirements depend on year planning permission requested If requirements are not met: energy performance requirement more strict Since 1/1/2018 no quality requirement on SPF heat pump Before: SPF > 4 5

6 % of new homes Evolution RE-systems new homes 2016: almost 9 out of 10 new homes has HP, SWH or PV (or combination) Year 6

7 % new homes Evolution RE-systems new homes Combination PV and HP 2 nd most used to reach mandatory amount RE Enkel Only PV Enkel Only WP HP Enkel Only ZB SWH PV + WP HP PV+SWH+ ZB WP HP+SWH + ZB WP PV+SWH+HP + ZB Year 7

8 Evolution RE-systems new homes PV, HP and SWH most used Other RE-systems limited Year Biomass Participation District heating ,14% 0,05% 1,75% ,11% 0,02% 0,32% ,46% 0% 0,23% Decrease in amount of homes without RE-systems Year No RE, better EP No RE, without better EP % 1,81% % 1,10% % 0,69% 8

9 % new homes Evolution HP new homes 25 Strong increase since mandatory amount of RE 20 alle All woongebouwen new homes samen Year Single family eengezinswoningen homes appartement/studio/l Apartment/studio/ oft loft 9

10 % of new homes Link energy performance and HP Increase in amount of HP with increasing energy performance 100% 90% warmtepomp Heat pump 80% geen No heat warmtepomp pump 70% 60% 50% 40% 30% 20% 10% 0% EP 10

11 Types of heat pumps in new homes Most common HP: air to water and ground to water 2% 3% 2% 1% Outside and extracted air to Afgevoerde lucht en water buitenlucht-water Bodem Ground (directe (DX) to water verdamping)-water 29% Bodem-Water Ground to water Buitenlucht-Binnenlucht Outside air to inside air 59% 4% Buitenlucht-Water Outside air to water Grondwater-Water Groundwater to water Overig Rest 11

12 % type HP Types of heat pumps in new homes Types of HP: evolution since Year Afgevoerde Outside and lucht extracted en buitenlucht-water air to water Bodem Ground (directe (DX) to water verdamping)-water Bodem-Water Ground to water Buitenlucht-Binnenlucht Outside air to inside air Buitenlucht-Water Outside air to water Grondwater-Water Groundwater to water Overig Rest 12

13 Average SPF Types of heat pumps in new homes Evolution average SPF for most common types 5 4,5 4 3,5 3 Bodem-Water Ground to water Enkel Outside buitenlucht-water air to water 2, Year 13

14 Gas heat pumps in EPB Before 2018: Only electric HP for space heating in standard calculation method Gas HP for space heating with ATG-E possible Calculation method since 2018: Absorption of adsorption gas HP: efficiency based on Ecodesign Similar to new method for electric HP Gas engine driven heat pumps: fixed efficiency (120%) Due to recent changes: no data on gas heat pumps in database 14

15 RE data existing and new buildings Renewable energy barometer 15

16 HP data existing and new buildings HP mostly used in new buildings Existing + new Existing New 16

17 HP data existing and new buildings Most HPs in residential buildings Residential Non-residential Total 17

18 Changes for HP in EPB for 2019 Following changes are planned (subject to change) HP boilers for DHW added to amount of RE Before: only HPs for space heating Changes to calculation method: Passive cooling through geothermal heat pump in residential buildings New method for VRF-systems New method for air/air HP > 12 kw 18

19 Passive cooling through geothermal HP Only for residential buildings (already possible for non-residential) Simplified approach: only necessary input is surface of cooling floor Passive cooling affects: Overheating Energy needed for cooling Impact study shows decrease by considerable factor: Overheating: 2,5 to 10 Energy for cooling: 1,1 to 6,3 19

20 Other changes for 2019 New method for VRF-systems (only non-residential) Recuperation between different energy sectors possible Recuperation depends on non-residential functions present Effect maximum distance between indoor- and outdoor unit New method for air/air HP > 12 kw 2018: efficiency based on Ecodesign only for air/air HP < 12 kw 2019: efficiency based on Ecodesign only for air/air HP < 1 MW Input new method similar to HP < 12kW 20

21 Further future? EPB/EPC 2.0 Goal: reduce complexity current framework, stimulate innovation First phase with study by ECN and BPIE: no conclusive result Current steps: input stakeholders was asked Will be processed to concrete proposal 21

22 Interesting links Renewable energy barometer: Data on renewable energy (heat and electricity) for new and existing buildings EPB-pedia: Requirements, calculation method and data for new buildings 22

23 FOR ANY FURTHER QUESTIONS Flemish Energy Agency T energie@vlaanderen.be