scottish water horizons delivering innovation in the hydro nation
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Scottish Water Horizons Delivering innovation in the Hydro Nation . Fraser Purves Commercial Manager. Who are Scottish Water Horizons. An overview… Owned by Scottish Water Self funded Leveraging value of Scottish Water assets Identifying commercial opportunities - PowerPoint PPT PresentationTRANSCRIPT
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Scottish Water Horizons
Delivering innovation in the Hydro Nation
Fraser PurvesCommercial Manager
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Who are Scottish Water Horizons
An overview…
• Owned by Scottish Water• Self funded• Leveraging value of Scottish Water assets• Identifying commercial opportunities• Contributing to Scottish Water’s renewable
objectives• Supporting Scotland’s growth agenda
What we do…
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The energy challenges
The scale of the challenge currently beingfaced by SW:
• Largest energy consumer within Scotland
• £40m per annum energy bill
• Reducing SW’s carbon footprint
The Scottish Water Vision…
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Horizons hydro programme
• The hydro potential
• SWH hydro investment into the asset
• SWH hydro programme
• A crucial part of the SWH programme is the Difgen… a new turbine technology
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What is a Difgen?
An alternative turbine technology
• A water turbine that combines:
Pressure reduction + flow control Power generation by harvesting the
energy from the resulting pressure drop
• Installed within potable water distribution networks
• The Difgen concept was developed by Zeropex
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The Difgen turbine… what it looks like
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Hydro power from fluid pressure
The heart of the Difgen… the techy bit
• A positive displacement rotary lobe pump running in reverse to act as a turbine
• How does it work?
Differential pressure created by the braking force load applied from the grid
Retards the rotational speed
Allows either flow or pressure control
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Denny Difgen… a first in Scotland
The facts
• In line between Carron Valley WTW to Quarter BPT
• 2 No. Duty models installed with an output of 100kW
• Energy produced; 600 MWh per annum… enough to power 150 homes
• Investment at £800k
• Return on investment Annual income estimated at £147k Anticipated payback of 6 years
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Denny Difgen… a first in Scotland
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What are the benefits?
• The asset base can be fully exploited for renewable energy
• The scale of the Difgen opportunity... 3,500 PRVs in SW asset base
• Pan Scotland Difgen programme kicked off with first 20 sites… estimated to produce 15,000MWh… enough to power 4,000 houses
• Benefits to SW and our customers
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Closing thoughts… a positive contribution to generating green energy
Finally, I want to leave you with these key messages:
• The Difgen technology supports SW vision of becoming a low carbon water company
• The Difgen is an enabler for: Smart leakage management Reducing carbon footprint Ultimately reducing the electricity bill
Thank you