Award Winning Water Operations Optimisation Software
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Award Winning Water Operations Optimisation Software Agenda Introduction to Beca and – an overview – technical information The benefits achieved in existing installations Delivery methodology Discussion is a Spin-off from The Beca Group: NZ based international consultant

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Agenda l.jpg
Agenda

Introduction to Beca and

– an overview

– technical information

The benefits achieved in existing installations

Delivery methodology

Discussion


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is a Spin-off from

The Beca Group:

NZ based international consultant

2,000+ employees

Offices in 14 countries

Multi-disciplinary engineering, project management and planning consultants

An employee owned private unlisted company

One of the top 100 consultancies worldwide

An implementer of capital works of ~US$1.0b/yr


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The UK water industry uses about £200M of electricity to pump water consuming 4400 GWh per year of electricity.

More than 90% of this is used for pumping

The Issue


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Typical Power Use in Water Distribution pump water consuming 4400 GWh per year of electricity.


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Pump Life-Cycle Costs pump water consuming 4400 GWh per year of electricity.


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Ltd pump water consuming 4400 GWh per year of electricity.

Specialist company with expertise in:

Control systems design and programming

Industrial and environmental automation

Simulation, operations research, logistics

Optimisation using computer modeling

Derceto Inc. was incorporated in September 2002 and is headquartered in San Francisco. It has been set up to handle US and Canadian operations.

Derceto UK Ltd formed in June 2006 for UK operations

“Supplying business improvement solutions for real world problems”


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Where pump water consuming 4400 GWh per year of electricity. came from….

Water

Operation

Automation

Wastewater

Simulation

Optimisation

Derceto


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Introduction to pump water consuming 4400 GWh per year of electricity.

  • Where does the name come from?

  • What does do?

  • What are the benefits?

  • Some examples of installations

  • Technical information

was the Babylonian Goddess of water


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What does pump water consuming 4400 GWh per year of electricity. AQUADAPTsoftwaredo?

Delivers water to customers as first priority

Schedules pumps and valves for next 48 hours to achieve lowest cost

Runs in real time, solves in minutes

Interfaces to your SCADA

Minimises energy costs

Maximises energy efficiency of pumps

Improves water quality

Recalculates a new solution every 30 minutes, adapting to changing conditions


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Benefits of pump water consuming 4400 GWh per year of electricity. AQUADAPT software

installed

AQUADAPTtakes maximum advantage of off peak rates


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Optimization Benefits pump water consuming 4400 GWh per year of electricity.

Makes operations more repeatable and predictable

Improved turn-over of water

Smoothed outflows from plants

Improves pump efficiency and optimal discharge pressure

Reduced greenhouse gas footprint

AQUADAPT has achieved 12 to 25% savings

Plus these additional benefits:


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Benefits of pump water consuming 4400 GWh per year of electricity. AQUADAPT

Moving load to cheaper tariffs = $ savings


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Benefits of pump water consuming 4400 GWh per year of electricity. AQUADAPT

Before Aquadapt

After Aquadapt

Led to a 8% energy reduction to shift the same volume of water for EBMUD


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Benefits of pump water consuming 4400 GWh per year of electricity.

Before Aquadapt

After Aquadapt

…which leads to substantial dollar savings


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Reference Projects – New Zealand pump water consuming 4400 GWh per year of electricity.

Wellington : 150 MLD (40 MGD) from two well fields and a filter plant into 11 pressure zones

Installed June 2000


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Reference Projects – New Zealand pump water consuming 4400 GWh per year of electricity.


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Reference Projects – New Zealand pump water consuming 4400 GWh per year of electricity.


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Reference Projects – USA pump water consuming 4400 GWh per year of electricity.

East Bay Municipal Utility District

Services 1.3 million people

AQUADAPT controls 1/3rd of system

20 pump stations, 66 pumps, 28 reservoirs

One treatment plant, one back-up supply plus numerous transfers between zones

$2.6M annual energy costs

AQUADAPT installed June 2004

Year 1 – 12% savings of $370,000

Year 2 – 13% savings

Year 3 – 13.6% savings


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US Clients pump water consuming 4400 GWh per year of electricity.


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Modules : pump water consuming 4400 GWh per year of electricity.

Demand forecasting

Storage tanks

Pump stations

Water treatment plants

Power tariffs and network charges

Scada interfaces

Created using standard modules

Maximum Efficiency Surface for multiple fixed speed Pumps


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Demand Forecasting pump water consuming 4400 GWh per year of electricity.

Substantial variations in daily demand occur for this Australian utility

– adapts in real time to achieve high accuracy


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Use existing forecasting systems if they exist pump water consuming 4400 GWh per year of electricity.

Otherwise :

Uses seasonal “standard” seasonal demand profiles for every major demand point in the system

Derceto uses existing telemetry to read storage tank levels and flows to calculate actual demand

Adapts the size and shape of the standard demand profile in response to actual demand

Derceto automatically compensates for any errors in data and instruments – using the “Data Cleaner”

Demand Forecasting

DEMAND

=

SUPPLY


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The Data Cleaner pump water consuming 4400 GWh per year of electricity.

Here the data cleaner corrects missing data for nearly 6 hours during a communications blackout and resynchronizes when the problem clears


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AQUADAPT pump water consuming 4400 GWh per year of electricity. can control:

Altitude valve controls

Flow control filling (open and closed loop)

Booster pump filling off transmission main

Floating storage tanks (no inflow control)

Pressure Zones

AQUADAPT is very good at filling terminal floating storage tanks, using optimised pressure settings


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repeats the calculations for: pump water consuming 4400 GWh per year of electricity.

Flow rate into storage tank

Energy used by pump

Efficiency of pump (%)

Pressure in the zone

Price per delivered volume

Using a hydraulic model enables AQUADAPT to make accurate control predictions, avoiding the common problem of “chasing ones tail” where changing one setting disrupts all other flows and pressures.


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multiple parallel plants pump water consuming 4400 GWh per year of electricity.

Surface water plants, raw water intakes

Well field water plants

Run-of-River plants

Minimum and maximum production flows

Flow ramp up / down limits

Chemical and power costs

Aquifer recharge times

Water treatment plants

AQUADAPThandles


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AQUADAPT pump water consuming 4400 GWh per year of electricity. has modules to handle:

Fixed speed pumps

Variable speed drives

Manual scheduling of pumps (on or off)

Multiple pumps into a common line

Pump priority

Limiting starts per hour

Gas/Diesel pumps

Pumps


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Pumps pump water consuming 4400 GWh per year of electricity.

AQUADAPT controls a storage tank with a dedicated pump or flow control valve easily


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AQUADAPT pump water consuming 4400 GWh per year of electricity. handles a pump station shared between two storage tanks

Pumps


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Pumps pump water consuming 4400 GWh per year of electricity.

AQUADAPThandles cascade storage tanks with pump stations between pressure zones

(unlimited levels)


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AQUADAPT pump water consuming 4400 GWh per year of electricity. targets the pump Best Efficiency Point (BEP)


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AQUADAPT pump water consuming 4400 GWh per year of electricity. chooses the best pump combinations


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Pumps : variable speed drives pump water consuming 4400 GWh per year of electricity.


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Pumps pump water consuming 4400 GWh per year of electricity.

When manyvariable speed pumps operate in parallel even more calculations are needed

Multiple pumps in parallel need special rules to achieve energy efficiency


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maintains minimum storage requirements and can change these seasonally or by fire risk

maintains pump station minimum and maximum flows

can also be programmed to maintain or limit system pressures at any number of audit points, even without instruments

can be programmed to keep within flow limits for individual pipes in the transmission network

Other Constraints


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Energy Tariffs requirements and can change these seasonally or by fire risk

  • Every point of supply can have its own unique electricity and demand tariff structure

  • Half hour resolution on kWh and kW price

  • AQUADAPT handles any combination of energy supplier with any network (lines) provider

  • Complex electricity sell-back or standby-generation schemes can be incorporated

  • AQUADAPT handles mixed mode pump stations e.g. gas engine and electric motor driven pumps


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Energy tariffs requirements and can change these seasonally or by fire risk

  • Real Time pricing can be used (with live updating)


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Washington Suburban, Maryland requirements and can change these seasonally or by fire risk

Serves 1.6 M people

57 Storage Tanks

15 Pressure Zones

18 Pump Stations

112 Pumps (max 81 running)

25 Remote Controlled Flow Valves

Uses Real Time Energy Market


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AQUADAPT requirements and can change these seasonally or by fire risk forecasts energy consumption…


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..so hedging contracts can be set up requirements and can change these seasonally or by fire risk


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Real time markets can be best requirements and can change these seasonally or by fire risk


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HOW EACH APPLICATION INTERACTS requirements and can change these seasonally or by fire risk


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AQAUADAPT requirements and can change these seasonally or by fire risk Dashboard provides a management view into the optimiser


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AQUADAPT requirements and can change these seasonally or by fire risk takes into account all of the costs, constraints, efficiencies, water turn-over requirements and manual settings

AQUADAPT calculates the mass balance first – delivery of water to meet demand is No. 1

AQUADAPTcalculates which source of water to use to minimize costs

AQUADAPTcalculates pump schedules to minimise energy costs and maximise efficiency

AQUADAPT uses the most efficient combination of pumps in parallel pump sets

The Outcome


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AQUADAPT requirements and can change these seasonally or by fire risk confirms that decisions are safe using a hydraulic model

The control system uses over-ride controls slightly above and below AQUADAPT levels

The field controls have limits which prevent over-filling of storage tanks, and start filling automatically on low level

Safety considerations

AQUADAPTprovides three safety levels


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Two studies are carried out requirements and can change these seasonally or by fire risk

Phase 1 – Simple overview study to confirm if AQUADAPT is suitable for the distribution system, preliminary cost/benefits calculated (~8 weeks)

Phase 2 – Detailed study, we will present the results including the price and indicative cost savings that can be achieved (~12 weeks)

Leading to…

Phase 3 – Implementation (6 – 9 months)

Payback periods typically less than 2 years, sometimes less than 1 year!

Implementation plan


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AQUADAPT requirements and can change these seasonally or by fire risk is in operation at:

East Bay MUD, Oakland CA, (1.2M customers)

Washington Suburban Sanitary Commission, MD, the 5th largest US utility and operating under the real-time electricity market (1.7M customers)

WaterOne of Kansas City (450,000 customers)

Eastern Municipal Utility District (670,000)

Maroochy Water in Queensland, Australia

Wellington, New Zealand (the Capital City)

They welcome phone calls and visitors


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AQUADAPT requirements and can change these seasonally or by fire riskpays for itself rapidly

AQUADAPTis an online real-time solver, it copes with imperfect real-world requirements

AQUADAPT has been developed by one of the world’s top 100 engineering consultants

AQUADAPT is available right now, allowing rapid implementation for faster pay-back

Summary of this presentation


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An off-the-shelf operations optimisation solution requirements and can change these seasonally or by fire risk

Proven to increase energy efficiency

Proven to reduce energy costs

Available now


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