12-SUEDE NordIQ M. Lindgren

1

Intelligent Sub-stationssave money, energy and

environment

2009-06-18

Matts Lindgren, CEOmatts.lindgren@nordiq.se

+46 736 88 99 73

NordIQ Göteborg AB

Dr Peter Gummérus, Developmentgummerus@nordiq.se

+46 736 006 202

Tinne

väggtransmQradQ

mningegenuppvärQTute

80

20

Trad °C

Tute-20 0 20

200

0Tute

-20 0 20

radQ kW

Tidsvariationer i inomhustemperatur

15

20

25

h

°C

KonventionelltSoftcontrolAcceptansnivå

Stable temperature = low energy consumption

How can you save energy ?

Easier adjustment = better adjustment

More information = better energy work

Intelligent control = stable temperature

Adjust power signature from statistics

Tindoor vs TAmbient

16

18

20

22

24

26

28

-10 0 10 20

Tindoor

TAmbient

Balance temperature

Internal heating

InternetSub-station

This is District heating

Two independent evaluations

Gröna Vallen, Göteborg120 lgh, 192 kWh/m2

Kaplansg, Gävle47 lgh, 172 kWh/m2

Rävpasset, Gävle, 60 lgh141 kWh/m2

Jökelv, Gävle, 76 lgh156 kWh/m2

Jägarg, Gävle, 28 lgh177 kWh/m2

S Köpmannag, Gävle, 39 lgh112 kWh/m2

Pilot project Swedish Energy AgencyGävle Energi, Familjebostäder, Göteborg Energi,Svensk Fjärrvärme, Fjärrvärmebyrån

Result: -12% average energy consumption12 degrees lowered return temperaturesLower power demand

Comparison conventional vs lNordIQ

New conventional substation 2001. NordIQ substation 2004

Result:Ny konv NordIQ

Energy total +/- 0 -14%

Energy heat +/- 0 -26%Return temp winter -11°C -13°C

Idrifttagning av fjärrvärmecentralerDriftoptimering

Åtgärder år1

EnergyEfficiency-Process

Surveillance and control

AdjustmentsMeasurements

Energyanalysis

Energy-Follow-up

Operation year1Analysis 1 Measures 1

InstallationCommissioning

Substation Radio sensors

Vacum deair unit

Flow adjustment

Åtg Analysis 2

”Det finns ingen energibristbara effektivitetsbrist”

prof Sven Werner