Energy from water Opportunities for public water utilities Oktober 11 2010 Ir. Stefan Mol - Waternet
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Energy from waterOpportunities for public water utilities
Oktober 11 2010
Ir. Stefan Mol - Waternet
Agenda
• Why?• Why me?• What about them?• Who’s next?
• Case green gas• Case ATES on the Dam square• Case ATES and tapwater (Diemen)• Case ATES and industrial water (Schiphol airport)
Why?
Why me?
tap water
sewagerivers, lakes
cookingcoolinglaundryrelaxingdrinkingwateringtransport
livingproductionwashing
constructionFfre fighting
heatingswimming
rain
groundwater
Energy from water
hot and cold water network
ground water
aquifers
surface water
drinking & industrial
water network
waste water
system
Water flows
Energy from water
organic energy
thermal energy
other
hot and cold water network
ground water
aquifers
surface water
drinking & industrial
water network
waste water
system
Types of energy
Energy from water
organic energy
thermal energy
other
cold
heat
biomass & biogas
blue energy
biofuel from algae
flow
hot and cold water network
ground water
aquifers
surface water
drinking & industrial
water network
waste water
system
high pressure
Possibilities
Energy from water
organic energy
thermal energy
other
geothermal power
heat pumps
cold
heat
biomass & biogas
digestion, purification
heat exchangers
blue energy
biofuel from algae
ATES
turbines
flow
hot and cold water network
ground water
aquifers
surface water
drinking & industrial
water network
waste water
system
high pressure
Harvestingtechniques
Water cycle potential
Source capacity (kton CO2-eq/yr)rivers, lakes 50sewage organic energy 10sewage thermal energy 140in home heat recovery 100groundwater 50 tap- and industrial water 50total ~400Amsterdam needs ~3000 (in 2025)
Roof scan Amsterdam
What about them?
energy use in the water cycle
0 500 1000 1500 2000 2500
hot water in households
new sanitization
innovative waste water treatment
conventional waste water treatment
kWh per household / year
net energy use reduction or gain
In home heat recovery
Costs: € 400,-Savings: € 125/yr
Case green gas
Biogas in CHP
11 kton CO2/yr
Cars on Green Gas
Cleaner air
Case ATES on the Dam square
Case ATES on the Dam square
C
A
B
Shared serviceCO2 reduction
Less energy costsLess technical spaceHigh performanceMore comfortBetter energy score
Case ATES and tap water
weespertrekvaart
centrumDiemen
spoorweg
A1
Ready in 2013
• 1200 houses• school• offices• restaurants• utilities
Case ATES and tap water
Regeneration of an ATES system with surplus heat from tap water
Case ATES and industrial water (Schiphol airport)
• 2 MW continuous cooling: + 0,4 °C• Regeneration with winter cold
Temp WRK I
0
5
10
15
20
25
01-01-2009 20-02-2009 11-04-2009 31-05-2009 20-07-2009 08-09-2009 28-10-2009 17-12-2009
datum
tem
p (
oC
)
Case ATES and industrial water (Schiphol airport)
Who’s next?
• Urban network for cold• Industrial network for steam
• Heat recovery from sewer systems?• Sewer mining?
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