Sector: Energy/Utilities
Thunder Bay Regional Health Sciences Centre
Cogeneration Plant
The Thunder Bay Regional Health Sciences Centre required a new outdoor enclosed cogeneration machine to be integrated into the existing mechanical and electrical hospital systems to displace utility electricity and boiler production.
As prime consultant, some of the challenges we overcame on this project included: meeting the delivery deadline under a very tight schedule once the project was approved to proceed; working under the confines of space constraints; noise suppression requirements associated with working in an operating healthcare facility; and integration and use of low temperature water from cogeneration.
To address these challenges, HH Angus pre-tendered the equipment, which allowed for unit production while mechanical and electrical design continued. To address the issue of noise infiltration to the hospital, the unit noise suppression was specified to very strict levels, and these were successfully met.
Although low temperature heat is normally unused in this process and is displaced to the atmosphere, our design incorporated low temperature heat along with high temperature waste heat for use in the dearator make-up. This feature adds a level of long-term efficiency to the installation.
SERVICES
Prime Consultant | Mechanical Engineering | Electrical Engineering | Civil Engineering | Structural Engineering
PROJECT FEATURES
Size: 1.5 MW | Status: Completed 2015
LOCATION
Thunder Bay, Ontario
KEY SCOPE ELEMENTS
Integration of new outdoor cogeneration plant into existing hospital M&E systems | Aggressive delivery schedule | Mitigation of noise and space constraints
Meeting deadlines
Despite a very tight schedule, the project was completed on time and within budget.
Yukon Energy
Gas Drive Cogeneration Plant
Yukon Energy is a publicly-owned electrical utility that operates as a business at arm’s length from the Yukon government. It is the main generator and transmitter of electrical energy in Yukon and works with Yukon Development Corporation to provide Yukoners with electricity and related energy services.
There are almost 15,000 electricity consumers in the Yukon Territory. Yukon Energy directly serves about 1,700 of these customers, most of whom are in the communities of Dawson City, Mayo and Faro.
Included in our electrical scope for Yukon Energy’s new cogeneration plant:
- Design of a two X 4.4 MWe Jenbacher 4160V LNG (liquid natural gas)-fed modular, containerized generation facility
- Supply of affiliated electrical power equipment (interface power transformer & switchgear, including electrical protection and control) to integrate from the owner’s existing transformer T4 6900V secondary into the electrical generation system distribution to connect the generation equipment
- Supply of station service transformer and distribution equipment to power all auxiliary equipment (jacket water pumps, dry cooler, battery chargers, module lighting, etc).
The Yukon Energy interface included a utility interface panel for complete utility interconnection to local standards. We provided interface wiring design for protection (ie. transfer trip) and SCADA, as well as outlining the electrical design for the switchgear container. Additional design included the balance of the plant engine electrical support services (HT & LT cooling, exhaust gas heat exchanger and fresh/waste oil and glycol makeup systems), etc. These services are supplied by a separate 600V service provided by the owner.
SERVICES
Electrical Engineering
PROJECT FEATURES
Status: Completed 2015
LOCATION
Yukon, Canada
KEY SCOPE ELEMENTS
Design of 2 X 4.4 MWe Jenbacher 4160 LNG-fed containerized generation facility | Utility panel, interface wire design for protection and SCADA | Outlined electrical design for switchgear container | Designed plant engine electrical support services | Balance of plant engine electrical support services
Temporal Power
Flywheel Energy Storage
“With thorough project management and smart engineering by the Angus team, they have been able to condense the schedule and, at the same time, lower our costs.”
— Geoff Osborne, Senior Associate, NRStor
HH Angus and Associates was engaged to provide the detailed electrical engineering and construction management of this flywheel energy storage project at Temporal Power’s Minto facility near Harriston, ON. Flywheel-based energy storage systems do not use fossil fuel and do not produce CO2 or other harmful emissions during operation.
Our electrical team provided consulting engineering to connect Temporal Power’s nominally 2MW of flywheel energy to (and from) the grid at distribution voltage, as well as commissioning of the site.
Grid frequency regulation is required by the IESO in the area northwest of Guelph because of fluctuating electrical load and generation; 2 MW of flywheel capacity can act as a sink or a source of electricity to stabilize frequency.
The vulnerability of the electrical grid and distribution service, as evidenced in the December 2013 ice storm that affected predominantly Ontario, Quebec and the Northeast US, is giving impetus to the move to smart grids, distributed power and storage systems. The Temporal Power facility serves to balance the system frequency, thereby reducing the need to have a more expensive and less responsive generating plant performing that function.
Each of the ten 250 KW flywheels in the plant weighs about 4000 kilos and spins at up to 11,000 RPM.The flywheels operate through five 480V inverters (ie, two flywheels per inverter, with one redundant unit). HH Angus designed and supplied the system that converts the local grid distribution voltage of 44,000V through 347/600V to 480V (and vice versa). In terms of interconnecting to the grid, this is very much like a generator project in that it does ‘generate’ 2MW when requested as frequency is decreasing. But it can also absorb energy when the grid frequency is ‘speeding up’.
SERVICES
Electrical Engineering | Site Commissioning
PROJECT FEATURES
Status: Completed 2014
LOCATION
Harriston, Ontario
KEY SCOPE ELEMENTS
Detailed electrical engineering and construction management of flywheel energy storage project | 2 MW of flywheel energy to/from the grid | EPC through Angus Power | Flywheel technology balances system frequency 10 X 250kW flywheels
Engineer
Procure
Construct
This was a substantial EPC project that married the electrical engineering capacity of HH Angus’ grid connection specialists with the project and risk management experience of our Angus Power team.
Hatherley Solar
250kW Photo Voltaic Installation
HH Angus provided full EPC services for this system, including electrical design, panel layout, structural review, component procurement and the installation of the system, commissioning and connection to the grid.
Hatherley Solar is a 250 kW, 36,000 ft2 rooftop solar PV project atop two industrial buildings at the Parry Sound airport in Ontario.
This project received an Ontario FIT contract, and at the time, was the largest solar installation in the Muskoka region, with over 1000 modules on two steel-roof buildings, feeding over 325,000kW hours to the Ontario power grid annually.
SERVICES
Project Design | Project Management
PROJECT FEATURES
Size: 36,000 ft2 Status: Completed 2014
LOCATION
Parry Sound, Ontario
KEY SCOPE ELEMENTS
Ontarian FIT contract | Largest solar installation in the Muskoka region | Feeds over 325,000kw hours to the Ontario power grid annually
Sunnybrook Health Sciences Centre
High Voltage Emergency Power Renewal
HH Angus has been providing mechanical and electrical engineering at the Sunnybrook campus since 1945. The complex now totals more than 2,000,000 ft2. In that time, a great many individual projects have been successfully delivered. The high voltage emergency power renewal described below was a large infrastructure improvement project. Other large project examples from our work at Sunnybrook include M Wing and the Toronto Sunnybrook Cancer Centre.
High Voltage Emergency Power Renewal
The renewal project involved replacement and upgrades of existing forty-year-old standby generators and associated infrastructure. The specifics included: installation of 8.75MW of diesel generators, new medium voltage switchgear, a selective catalytic reduction system for each new generator (for emissions control), fuel oil system upgrades and replacement of a campus-wide PLC-based load management system. The selective catalytic reduction systems allow Sunnybrook to use their plant for offsetting peak loads during summer months and to realize savings in annual hydro expenditures.
The high voltage emergency power renewal project replaced the existing 4160V generating capacity of 4.3MW with 8MW of new 4160V generating capacity. A 600V, 750kW generator replaced an existing 400kW generator.
SERVICES
Mechanical Engineering | Electrical Engineering | Prime Consultant
PROJECT FEATURES
Status: Completed 2015
LOCATION
Toronto, Ontario
KEY SCOPE ELEMENTS
Large infrastructure improvement project involving architectural and structural design for a building plenum expansion | Installed 8.75MW diesel generator | Added selective catalytic reduction system for each new generator | Multi-phase project to ensure service redundancy for critical functions
Prime consulting services
HH Angus was the Prime Consultant, as well as the electrical and mechanical engineer for the project. We retained the services of an architect and structural engineer to design a building plenum expansion for the new diesel generators. The general trades work included extensive structural steel work, excavation and concrete work.
HH Angus managed equipment procurement for the project and helped Sunnybrook Health Sciences select an equipment supplier to provide a .9 million CDN (2013) equipment package.
Phasing for service redundancy
The project was multi-phased to allow temporary power to maintain service redundancy for critical healthcare functions while existing diesel generators were decommissioned and the new structure constructed and plant equipment installed.
