AN INNOVATIVE MICROGRID IN LAC-MÉGANTIC · 5/30/2018 · The microgrid’s control system 22...

AN INNOVATIVE MICROGRID IN LAC-MÉGANTIC Information session for suppliers

May 30, 2018 | Ville de Lac-Mégantic

Hydro-Québec | All rights reserved

Presentation Overview

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1. Introduction

2. Background

3. Objectives

4. Nature of the project

5. Procurement

6. Major stages

7. Question period


An innovative project

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Hydro-Québec: • Supplier of clean, renewable energy

• Major contributor to Québec’s collective wealth

The Lac-Mégantic microgrid: • The first microgrid powered by Québec’s 100% renewable energy

• A project in line with the energy transition


An evolving industry

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Innovating to meet customer needs:

• Diversifying services and planning for customer empowerment

• Integrating connected technologies

• Integrating new production methods

• Developing a smarter, more flexible grid that allows for power exchanges

-> Creating the grid of the future


Lac-Mégantic: a city looking to the future

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• The tragic rail disaster in 2013

• The reconstruction of Lac-Mégantic’s downtown area

• A city looking to the future and focusing on innovation and sustainable development


The Lac-Mégantic microgrid: innovative and original

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• Connected to Hydro-Québec’s main grid (medium voltage) and able to operate independently (islanding) without the use of a generator

• Including solar panels and both centralized and decentralized batteries to power up to 30 mixed-use buildings (commercial, institutional, residential)

• Equipped with a smart control system for overall islanding management, distributed energy resources (DER) and individual building loads


Defining the Lac-Mégantic microgrid

• Includes various components such as solar panels, storage devices and energy consumption management tools thanks to an advanced metering and communication system.

• A community-centered initiative.

• Meets local user needs.

• Connected to Hydro-Québec’s main grid and can also operate independently.

7 Hydro-Québec | All rights reserved

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Video: How does a microgrid work?

https://youtu.be/ATqA6rFWuiQ


https://youtu.be/7xtgvi3Qrfo








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Objectives


Objectives

For Hydro-Québec

Implement the first microgrid in Québec.

Assess DER technologies in a real-life situation.

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For Lac-Mégantic

Make Lac-Mégantic’s vision of a smart city a reality.

Help increase the city’s appeal as a hub for economic and technological innovation.

Transpose the microgrid model to off-grid systems thus reducing reliance on fossil fuels.

Manage the microgrid’s power demand during winter peak periods by using DERs and load control.


Potential advantages of the project

For customers

Lower power consumption

Increased comfort

Continued service for certain buildings in the event of an outage

For Hydro-Québec and the community

Creation of better energy-efficiency practices

Avoid extra investments in the grid

Fewer electricity purchases during peak periods


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Nature of the project


Nature of the Lac-Mégantic project

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Maximum storage

1,200 kWh of energy

Up to 3,000 solar panels for generating electricity

Approximately

30 buildings

Total surface area of

170,000m2


Perimeter of the Lac-Mégantic microgrid


Steps completed to date

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• Analysis of the current demand for electricity

• Analysis of the site’s solar potential

• Assessment of the possible interventions in the existing buildings

• Energy consumption simulation (including future buildings)

• Simulation of islanding scenarios In collaboration with


Project components

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1. Islanding capacity without a generator

2. Building interventions

3. Microgrid control system


1. Islanding capacity without a generator

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– Operates independently when not connected to Hydro-Québec’s grid

– Central fleet of solar panels connected to the medium-voltage system and decentralized solar panels

– Centralized energy storage system with a capacity of about 1 MWh and decentralized batteries in buildings


Islanding capacity: analysis results

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Complete islanding possible in summer

Annual profile Blue = Load Yellow = Solar photovoltaic generation

Limited grid requirements in summer (June/July). Complete

islanding possible.


2. Building interventions

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Residential buildings:

• Home automation equipment

• Batteries based on integration possibilities

Commercial and institutional buildings:

• Improved regulation of HVAC systems

• Batteries and/or photovoltaic solar panels based on integration possibilities


3. The microgrid’s control system

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• Islanding control

• Control part of the load included in the perimeter

• Manage the DERs

• Manage demand during winter peak periods

• Must comply with IEEE 2030.7 and IEEE 1547 standards


Primary required functions of the microgrid’s control system

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According to IEEE 2030.7:

– Dispatch: for changing function modes and setpoints. The function balances supply and demand of the islanded microgrid and can manage capacity constraints (P, Q) at the microgrid POI to the main grid. This function can use simple rules (automated controls) or optimization to determine setpoints.

– Transitions: receives information about the nature of the transition to be carried out and executes required operations. The four transition modes are unplanned islanding (T1), planned islanding (T2), reconnect (T3), and black start (T4).

These are non-exhaustive descriptions. The details of these functions are included in sections 6.2 and 7.2 of the standard.


The microgrid’s control system

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Overview | IEEE 2030.7

Dispatch and transitions

Photovoltaic solar

Main circuit breaker

Battery

Other DERs and home

automation

Optimization, generation and demand forecasts,

market interface, etc.

Distribution management

system

Tertiary control

Secondary control

Primary control


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Procurement


Procurement

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Services

– Hardware, engineering and technical documentation

– Technical support for installation, testing and commissioning

– Dissemination of training and teaching materials

– After-sales services (maintenance, troubleshooting)

Goods – Solar panels on the roof of buildings

or on the ground

– Storage batteries (connected to the 25-kV network and in buildings)

– Microgrid control device capable of communicating with DERs and the 25-kV network using local and remote functional interfaces

– Equipment for interfacing with building automation / regulation elements

– Other equipment (to be defined)


Procurement (cont.)

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Desired technologies

– Open and flexible

– Reconfigurable

– Respecting cybersecurity criteria

– Expandable, able to adapt to different types of DERs and uses

Calls for proposals

– Number to be defined

– Willingness to promote competition

– Requirements and certification (general clauses: Hydro-Québec, ARQ and ISO certification)

– Compliance with deadlines for submitting documents (proposals, technical documents and answers to questions)


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Major stages


Major project stages

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Planning and design

Realization and

construction

Progressive deployment

Feb. 23, 2018 July 2018 October 2018 December 2019

Microgrid definition and concept

Draft-design phase • Preparation of documents

for calls for proposals

Project • Engineering • Manufacturing, development, delivery • Installation • Testing and commissioning

September 2018

Publication for calls for proposals

November 2018

Analysis and awarding of

contracts


Questions?


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microgrid-megantic.hydroquebec.com


http://www.hydroquebec.com/microgrid-lac-megantic/



AN INNOVATIVE MICROGRID IN LAC-MÉGANTIC · 5/30/2018 · The microgrid’s control system 22...

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