reducing carbon footprint and energy bill in a district · 2020. 10. 15. · pv optimizer 380v dc...
TRANSCRIPT
Reducing Carbon Footprint and Energy Bill in a DistrictCherif Assaf – Program Director-Energy Research Institute @ NTU
A New Reality in the use of Energy
Conventional gas and electricity systems are decoupled resultinglow optimization of energy , under utilization of assets , energylosses and over design .
Increased Distributed Energy Resources coupled with energystorage whilst addressing intermittency challenges have limited
controllability and can result in network instability
District cooling systems can provide greater efficiency, but theyare decoupled from other energy systems
New market mechanisms at the distribution level
Digitalization will be the common thread that spurs thesetechnological advances
Source of electricity: grid, local-generation
Losses: Process Energy Loss: ~45%, Electricity Generation
Opportunity: Energy recovery processes
64%
64% energy loss typically seen in manufacturing sector
Testbed
Site
NTU JTC
Development and demonstration of anintegrated Multi Energy Management &Information System at a commercialindustrial site with:• Seamless integration of Energy Generation,
Storage, & Rational End-use
• Integration of Electric, Thermal, and Gas
networks
• Real-time interaction with Energy Market
DELAYED
Jurong Port
NTU JP
To achieve substantial energy (at least 20%)and cost savings (at least 30%) resulting in atleast 20% CO2 emission reduction.
Our Challenges: Introducing SMES
(Smart Multi Energy System)
Multi purpose port : 155 Ha 40,000 Vessels x yr.
Electricity requirements : 10MW at peak through PV which represents 60% of the Harbour power requirements
L 5
SMES
Maintain savings
Optimum energy
dispatch
Better equipment
sizing
Better design
long term
Optimum
energy mix
Energy & Cost
Savings
Improve maintenance
Data analytics
AI & Models
SMES
OptimumPlanningTool (OPT)
Optimize CAPEX
SMES
CloudPlatform
Optimize OPEX
Planning Operation
Maintenance
SMES is NOT just a software,
it’s a solution
L 5
Gas Engine
PVRoof
Electrical Loads
Energy Storage
ThermalStorage
Chiller Plant
ThermalLoads
Electric Flow Thermal Flow
SMES Controls
SMES
SMES Controls Prices
Energy Retail PricesRegulated, Real-Time
Energy exchanged at the point of delivery
AVAILABLE CAPACITY
Absorption Chiller
District Cooling
9.6MW (existing)200kW (new@W16)
700kW Gas Engine
@Warehouse 16A
220 RT Capacity
300kWh Battery ESS
300RTh
Jurong Port deployment
Procurement- Co-generation unit- District cooling and
thermal storage- Gas pipe
- Communication protocols tools
- Visualization and Historian Tools
- CIM implementation
Chiller Plant
Chiller Plant
BMS
Warehouse / Tenants
Grid
HCC Building
JP Building
CHP Plant (< 1MW)
Thermal Storage
District Cooling Infrastructure
…
Pipe Natural Gas Supply
Crane
Lighting
PV Roof(Sunseap)
Point of Common Coupling
SMES Control Centre
Forecast and Optimization algorithmsFault Detection and Diagnosis
Universal getaway for monitoring/control
Smart metering infrastructure
MG-OS
AC DC
Cust. Economic Dispatch
8
Metering Dashboard pending link to metering data
Jurong Port deployment
Features :
Economic dispatch
Electric/thermal management
Metering
Tariff management
Fault detection and diagnostic
Strategy :
Forecasts for generation, consumption and prices.
Economic energy dispatch (30min) Energy arbitrage, peak shaving.
Model Predictive Control, Rolling Time Horizon.
Rule based engine for FDD
Gas Turbine
PVRoof
Electrical Loads
Energy Storage
ThermalStorage
Chiller Plant
ThermalLoads
Electrical Loads
Chiller Plant
ThermalLoads
Electric Flow Thermal Flow
SMES Controls
SMES
SMES Controls Prices
Energy Retail PricesRegulated, Real-Time
Energy exchanged at the point of delivery
Building 1
Building 2
Main Block Functions ▪ Data acquisition : field gateway▪ Data Storage : SQL Server▪ Data Analysis : Artificial Intelligence▪ Optimization : Mathematical Prog.▪ User Interface : Web Based
SMES Operation Platform:
The heart of the system
◼ SMES Platform
Weather, Solar, Electricity Price, etc.)
Data Integration&Data Transformation
Data Storage, Processing & Analytics
BuildingNet load
Application
User InterfaceEnergy Manager, Operator
UI / Presentation& Roles
SQL Server / Machine learning tools
Economic Dispatch
Sub System Controller
Portfolio Management
User Management
Gateway Management
Sub SystemsControllers&Assets
Chiller plant
Poly Gen.
SMES
Clo
ud
Pla
tfo
rmO
nsi
te
Singapore Power Universal Gateway (SPUG)
Historical Core Data Warehouse
3rd-party systems
ETL : Extraction, Transformation & Loading
Report depository
Global Energy Dashboard
Application Event & Log
FDDRule based Engine
Web API
Commissioning toolsPortfolio Perf.
Overview
FTP
Third Party Interfaces
RSync
Energy storage
Mass Data Integration tools
Soft. Exception Management
Energy Monitoring
Admin Tools
Reporting tools
AC/DCmicrogrid
ModelManagement
Dynamic data flow
Sub meteringEnergy
Dashboards
Energy Optimizationand control
Condition Monitoring
Reporting tools
Chiller plant efficiency
monitoring
…
User InterfaceEnergy Manager
User InterfaceSystem, Engineering
User InterfaceEnergy Manager
Job Scheduler
ServiceBus
API
…
FDD Rule Library(ACMV, Elec)
Data Transfer& Data collection
FDD dashboard
BMS SCADA MG-OS …
BacNetmass data collection
Spug App(SMES)
OPC-UA & DAmass data collection
Control APPSpecific to each asset
Cloud
Edge Gateway
Design/dev/lab tested
Ongoing dev
On roadmap
PVOutput
User InterfaceEnergy Manager
Forecast
Coolingload
Tariff Management
Version 0.4
Functional Architecture
We monitor energy consumption from 13 buildings on NTU
campus in real time
Solar production
Grid consumption
Kwh/m2
We can compare a portfolio of buildings with mixed energy
contributions for benchmarking their energy performance
Chiller efficiency
12 month savings• Energy• CO2
• Cost
Building information
KPI Indicators for electrical and thermal
Target setting
features
For each building we have a specific dashboard e.g., RTP
Thermal economic dispatchElectrical economic dispatch
Economic dispatch for multi energy systems has been created
corresponding electricity pricing contracts
Forecast accuracy constantly being monitored, evaluated and
improved e.g., CleanTech One
Connection Energy Market
DC Grid
Main Grid
A Software Suite▪ Planning of Multi Energy Estate - Design of energy assets (solar, genset, batteries, thermal storage,..)▪ Operation - Prediction-based decision tool for energy dispatch in multi-energy estate▪ Maintenance - Rule-based engine for Fault Detection & Diagnosis (FDD) of sensors and chiller plants equipment
Hardware systems▪ Integration of metering infrastructure (> 200 meters)▪ Smart multi modal sensors for comfort improvement and cost savings (temp., occupancy, humidity)▪ PV Optimizer 380V DC – certification by TUV by October 2019▪ 380V/15A Solid State DC breakers – prototype tested
District Cooling Infrastructure ▪ Cogeneration plant , Thermal storage
Research▪ Phase change material storage & CryoLab▪ Liquid air storage
Deployment ▪ NTU Campus and Clean Tech Park▪ Jurong Port and EPGC (testing)
▪ S$18M project supported by the NRF▪ 5 Years Project started in 2015 involving 40 people.▪ 20 % Energy and CO2 Savings
SMES deliverables
THANK YOU
Ab
sorp
tio
n
Ch
iller
Cooling Tower
22kV Transformer
Make Up Water Tank
Tower
Electrical & InstCabling
Gas & Chill Water Pipes
Electrical & Control Panel
Water Pumps
Thermal Storage
Tank
Cogeneration Power Plant