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COGENERATION

Cogeneration is a technology that generates electrical energy and captures heat that would otherwise be exhausted to provide useful thermal energy. Thermal energy can then be used to create hot water and/or steam which can be used for space heating, cooling, industrial processes, and domestic hot water.

A Martin Energy gas powered; internal combustion generator can harvest the heat from the generator to create energy efficiencies close to 90% whereas traditional heating sources can be less than 50% efficient.

The net cost of generating power from a gas cogeneration unit is lower than the purchase of electrical power from the grid. Excess power can be sold back to the grid to create another revenue stream.

Net costs of producing combined heat and power are less than the purchase of electrical and natural gas separately. This could lead to the realization of carbon credits.

Ailean Environmental are a fully integrated EPC (Engineering, Procurement and Construction) company. We work with the owner from concept to completion.

  • Size and pressure of natural gas line.
  • Hosting capacity of the local electrical utility.
  • Soils testing and site design recommendations.

Engineering and drafting of entire Martin Energy offering including, but not limited to:

  • Single line electrical drawings
  • Natural gas CHP genset motor and controls.
  • Utility protection relay (for interconnect)
  • Power meter (for power export)
  • Engine and power controls and panels
  • Walk-in enclosures with ladders and catwalks
  • Pipework, cooling system and heat recovery.
  • Exhaust pipe and mufflers (35 – 40 DBA)
  • Isolated control room.
  • E-House with switchgear, controls, and transformer.

Engineering of site work, foundations, and utility connections (natural gas
and electrical)

Complete permitting.

  • Contracts and purchase of Martin Energy Group Equipment.
  • Contracts with electrical utility suppliers.
  • Application for hosting with local electrical utility.
  • Work with the owner in application of possible grants.
  • Alberta grid peak harvesting system – 12-month subscription
  • Calculation and review potential Carbon Credits.
  • Validation of carbon credit calculation.
  • Verification of carbon credit validation by 3rd party.
  • Complete site work related to cogeneration installation.
  • Natural gas and electrical grid hook-up
  • Installation of grounding grid
  • Installation of cogeneration system and E-house on prepared construction site.
  • Commissioning and start-up of entire installation. Operator training.
  • I year full-service warranty on CHP’s
  • Yearly validation of carbon credits.

Natural Gas Genset:

4 – Engine: New 2023 Model Guascor SGE-56HM/ 1800RPM / 1248 KWe with
latest updates
4 – Synchronous Generator -4160volt / 3 phase
4 – Engine Coupler
4 – Frame – Steel with cross members for re-inforcement
4 – Dry type air cleaners
4 – Stainless exhaust flex pipes
4 – Engine Blockheater – Supplied with Engine
4 – Battery box and cables
4 – Battery{s}
4 – Oil, engine oil filled to operating level
4 – Operation & Maintenance Manuals
4 – Kit, engine maintenance tool box
4 – Engine, Oil Pre-lube pump
4 – Pad-type isolators, sylomer
4 – Governor, engine speed control
4 – Air / fuel ratio controls – Supplied with Engine
4 – Misc. small parts and accessories
4 – Crankcase Ventilation system with blower and VFD
4 – NOX Emissions Sensor
4 – Silencer 35-40 Dba Reduction (Hospital Grade or Equivalent)
4 – Labor for factory manufacturing & assembly

Gas Supply Train:

4 – Equipment isolation valve- hand operated
4 – Natural gas filter
4 – Dual safety electric valve
4 – Pressure regulator
4 – Factory assembly labor

Engine Cooling & Heat Recovery:

4 – Remote radiator(s)
4 – Engine Coolant pumps JW + IC, electric
4 – Electrically Actuated Valve
4 – Exhaust Heat Recovery Unit
4 – EHRU Control Panel
4 – Plate and Frame Heat Exchanger
4 – LABOR, Manufacturing & Assembly

Continuous Duty Accessories:

4 – Oil level regulator, w/float and site window
4 – Oil reserve supply tank, 30 gal.{for lube oil}
4 – Pump: Oil transfer pump
4 – Battery charger, 20 amp line charger4 – EHRU Control Panel
4 – Factory assembly labor

Intellimains Control System:

4 – Intelimains IM_NTC_GC
4 – Master PLC with Panel
4 – Labor, Controller Programming
4 – 6 Spare Control Relays
4 – 120 VAC – 24VDC Power Supply
4 – Canbus to Terminal Strip
4 – Integrate and Install ComAP Intellimains Controls System in Panel
4 – Ship Loose Items
4 – Site Programming

Monitoring System:

4 – Wattnode or Shark meter for parasitic Load
4 – Gas Flow Meter installed – Honeywell American Meter or Equivalent
4 – BTU Meter installed
4 – Hot Water Forwarding Pump System with Electric Valve temperature Control

Datalogger System:

4 – Dataloggerto read BTU Meter, Gas Meter, and ComAp Electrical KW Output
4 – Programming and Installation Remote Technical Support

Alberta Grid Peak Harvesting System (12 month subscription included):

4 – PLC and Hardware, Setup
4 – MEG hosted Server interface with reporting and data logging – (12 month
Subscription)
4 – Includes tech support, subscription update support, and user training
4 – Programming and User Setup

MEG 1 year Full Service On CHP’s:

4 – Oil, Spark plugs, parts, and consumables inlcuded
4 – Labor by MEG Technician

Parallelling Switchgear & Controls:

1 – E-house – climate controlled
4 – 52G Breaker w/Cradle
4 – Utility Protection Relay (for Interconnect)
4 – Power Meter (for Power Export)
4 – Controls; Misc Parts and Accessories
4 – Freestanding Control Enclosure

4 – Engine Control Panel:
4 – Digital controller PLC
4 – Engine interface
4 – Remote communication pckg
4 – Controls; Misc Parts and Accessories
4 – Freestanding Control Enclosure

4 – Engine Box:
4 – Mounted Control Enclosure, Misc Parts and Accessories

4 – Motor Control Panel:
4 – Main Fusible Disconnect
4 – VFD’s, Line Reactors, Fusible Disconnects
4 – Controls; Misc Parts and Accessories
4 – Wall Mount Control Enclosure

4 – Power Distribution Panels:
4 – 3-Phase Distribution Panel, 480V, Station Power
4 – 1-Phase Distribution Panel, 120-240V, for Lighting, Receptacles, etc

4 – Misc. Items:
4 – Genset control wiring harness
4 – Emergency stop; local and panel mounts – Water Seal
4 – Local audible alarm
4 – METERING : (*KWH, *KVAR, *KW, *Power Factor, *THD, *Volts L-L L-N,
*Frequency, *Tachometer, *Hour meter, *DC voltage, *Water temperature,
*Engine oil pressure.)
4 – ALARMS/SHUTDOWNS: (*Low Oil Pressure, Low Oil Level, *High Water
Temperature,*OC, *Low water level,*Governor failure, *Over-speed, *High
exhaust temperature/pressure)
4 – AC PROTECTION RELAYS: (*Over-current, *Over-voltage, *Over-frequency,
*Reverse-power, *Under-voltage, *Under-frequency)
4 – Small parts and accessories
4 – Factory assembly & testing

Walk-in Enclosure – Standard Taj:

4 – Modular Enclosure, 11.5′ X 45′
4 – Base: Steel with leak seal coating
4 – Doors, 3 personel doors, panic bar hardware
4 – Walls: Steel frame with fiber insulation, thermal & acoustical
4 – Ventilation system – fans and louvers engineered for genset
4 – Intake Louvers – Sound attenuated
4 – Cat walk & roof access ladder
4 – Floor: Spray liner
4 – — Electrical Package —
4 – Receptacles, lighting bases, full EMT conduit
4 – ——- Plumbing ——
4 – Pipework, cooling system and heat recovery
4 – Pipework, exhaust pipe & muffler installed
4 – —– Installation —–
4 – Installation of MGG models
4 – Installation, conduit and wiring to sw-gear
4 – Installation, Sw-gear mounted interior
4 – External Emergency Stop – push button
4 – —- Isolated Control Room —-
4 – Fabrication: Interior wall, insulation, lighting
4 – Air conditioner + Heater, wall mounted
4 – Control Room Doors with hardware
4 – Safety, CH4 monitor with output to Gas valve
4 – Locker for storage

Engineering / Commissioning / Warranty:

1 – Engineering and Drafting – 3D CAD Models available
4 – MEG Factory Full Load testing
4 – Onsite Start-up Commissioning by Martin Energy Group technician
4 – Operator Training and user orientation
4 – Warranty: 1 Year, Unlimited hours -On parts and workmanship

Onsite Construction and Installation of MEG package:

Offloading and Rigging (5 Enclosures)
4 – Enclosure Assembly and completion
4 – Switchgear Assembly and completion
4 – First Fluids Fill and Leak testing
4 – Install gas meter and gas piping from termination at the compound edge to genset enclosures
Load Bank for testing
4 – MEG Equipment Connections Electrical Wire terminations and Testing
4 – Civil design and installation of enclosure foundation piers and all
underground conduits connecting MEG equipment
4 – Gravel topcoating and/or grass seeding of generator compound at project completion
4 – Site electrical design and permitting within MEG package
4 – Wiring/Grounding of Enclosure Units, Main 4.16kV CB’s – Includes
Cabling, Duct banks, Conduit and labor

  1. Primary main 4.16kV Service. Medium Voltage Wire supplied, pulled, and terminated connecting each Generator to the 13.8kV MEG supplied Mains Switchgear
  2. Shore Power 480v. Or 600 Service, 800 amp wire supplied, pulled and terminated from each enclosure to customer supplied service at edge of or within generator compound
  3. Grounding grid for each enclosure and transformer designed and installed.
  4. Communications Network, wire supplied, pulled and terminated between all MEG equipment

Note: * Conduit placement, entrances, and exit points coordinated with site
contractor;
* Driveway by others.

4 – Freight – Shipping to Customer Site, Subject to Change at the time
of Shipment.

Alberta Electric Microgen CHP Power Options by Martin Energy Group (MEG).

As clean green electrical power has become popular, and mandated, in the Province of Alberta larger power users find themselves facing the increased cost of green electrical power. This increase in power cost makes it cost effective to generate electricity on site, especially for larger users who incur high demand charges for peak power draw. It is most advantageous for reliable electric power, and for best economy, to operate these on site units in parallel with the utility grid, whenever possible. This narrative explains the intended operation of the Martin Energy Group interconnected Microgen CHP units.

Microgen Onsite Design Considerations

A. Efficient Electricity Generation Using Combined Heat and Power (CHP)

  • • The generation of electricity onsite by a Microgen CHP using natural gas is more efficient that than the grid, therefore electricity is less cost to the consumer. One reason is the core power plant is a reciprocating engine which is more efficient than large utility sized turbines. Onsite generation also avoids the transmission line losses and voltage drop. Finally, the reciprocating engine is rated to produce full power without degradation or derate over a wide range of extreme temperatures and altitudes.

B. Thermal Heat Recovery:

  • • The CHP System is designed to recover the waste thermal energy. A typical CHP can recover at least as much usable thermal energy as electric energy. This thermal energy can be used to displace existing conventional site boiler and heating systems. This increases the net total Microgen efficiency combining the electric and thermal energy use to 80% or greater. The hot water thermal energy can also be converted to chilled energy by using an efficient absorption chiller. (An absorption chiller is a thermal hot water powered heat pump system.)

C. Microgen Generation Equipment sizing:

  • • An ideal sizing matrix of the Microgen is at least 20% more than the predicted consumer maximum load demand. This allows the Microgen to always supply the full customer load demand. This avoids expensive demand charges to the consumer. The CHP is equipped with export controls to allow the unit to follow the customer load while remaining interconnected. Since the Microgen Regulation allows for electricity export via bidirectional or net metering, the system can export excess electricity. This exported electricity can offset previous customer electricity demand. If demand is fully offset, the excess exported can be reimbursed at current pool prices or facilitated by a retailer.

D. Microgen Redundancy Design:

  • • A CHP system with maximum redundancy and reliability is designed to avoid a single point of failure. Two units which are paralleled and share load controls is an ideal design. Each unit should be sized to run the site load during times of service and downtime of a single unit. This always provides the customer with reliable power to generate site load and efficiently provide the benefit of heat recovery offset of the existing conventional boiler systems.

E. Microgen Design for Grid Backup:

  • • The Martin Energy CHP is designed to be an automatic grid outage backup. The Microgen system is interconnected to the grid through an automated mains synchronizing breaker. This breaker has Alberta CHP Technical Design and Operations Narrative Page 4 of 5 smart controls which can sense grid faults or outages. When such and event occurs, the breaker will automatically open and control the CHP system to continue supplying the consumer site loads without any visible power interruption. When grid power is stabilized, the smart breaker initiates an automatic reconnecting and grid synchronization sequence. This feature greatly benefits the consumer by availing expensive gird outages or interruptions which cause extensive electronics and electrical equipment failure.

F. Microgen Design for Alberta Grid Support and Base Load:

  • • There are times when both wind and solar power production are low and the price of available electrical power is higher over those times. Per the regulations of the Province of Alberta it is allowable for generators to generate electricity through a bidirectional meter which measures how much electrical power is being used or returned to the distribution grid and be reimbursed at the power price that is in effect during the hours of generation.
  • • Microgen production is excellent grid base load source during times of gird stress or emergency alerts. These events are periodically caused by loss renewable wind and solar generation, load of large utility baseload generation, or grid peak demands.
  • • Microgen production has great potential as a decentralized base load source using clean Alberta Natural Gas is the most efficient way possible – onsite CHP generation.

II. Microgen Operations Narrative
Priority 1

  • To offset customer electrical usage.
  • The first priority of the interconnected system is to operate in parallel with the utility feeder, in load following mode, with a minimum usage from the utility at all times. Load following mode means that the system monitors power flow at the customer Mains and automatically adjusts CHP output to maintain a minimum amount of power usage, which is typically determined by the minimum detectable amount of power as measured by the current transformer. (approx. 100mA on the secondary side of the CT)

Priority 2

  • • To recover extra charges such as when the CHP is down for maintenance.
  • • The CHP System will need maintenance, such as oil changes, and so from time to time it may not be operational for a certain period of time. The customer may choose to export some electricity to offset this cost.

Priority 3

  • • To provide necessary heat for customer operations.
  • • There will likely be times when the system will need to operate in Thermal Process following, rather than load following. This would be abnormal but may happen occasionally when the heat load is at a critical stage.

Priority 4

  • • To produce power in situations where it is advantageous to both the customer and the utility to do so.
  • • There are times when both wind and solar power production are low and the price of available electrical power is higher over those times. Per the regulations of the Province of Alberta it is allowable for generators to generate electricity through a bidirectional meter which measures how much electrical power is being used or returned to the distribution grid and be reimbursed at the power price that is in effect during the hours of generation.
  • It is not intended to always operate the CHP System at full electrical output. Only when it is of necessity, or financially advantageous to do so. Most of the operation will likely be in load following operation as described in Priority 1.

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