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Electrical Interconnection Approval of NON-HONI Biogas Projects

Electrical Interconnection Approval of NON-HONI Biogas Projects. Prepared By: Martin Lensink, P. Eng. Principal-In-Charge CEM Engineering 26 Hiscott Street, Suite 201 St. Catharines, Ontario, L2R 1C6. Table of Contents. Introductions Description of Proponents Operations

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Electrical Interconnection Approval of NON-HONI Biogas Projects

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  1. Electrical Interconnection Approval of NON-HONI Biogas Projects Prepared By: Martin Lensink, P. Eng. Principal-In-Charge CEM Engineering 26 Hiscott Street, Suite 201 St. Catharines, Ontario, L2R 1C6

  2. Table of Contents • Introductions • Description of Proponents Operations • Description of Electrical Supply • Description of Biogas Projects • LDC’s and LDC Approval • Conclusions

  3. Introduction – CEM Engineering • Engineer consulting firm (9+ people). • Specialize in “thermal power”. • Committed to helping energy intensive customers manage energy use & reduce energy cost, through proper application of high efficiency energy conversion technology. • Established in early 2001. • Lead by Martin Lensink: • 28+ years in cogen/energy sector

  4. Introduction – Martin Lensink • McMaster University, Mech. Eng. & Mgmt, 1980 • Five (5) Energy Firms Between 1982 and present • Union Gas Ltd. (cogeneration via natural gas) • SNC Lavalin (cogeneration engineering) • U.S. Turbine Corp. (cogeneration major equipment) • Toromont Energy Ltd. (sale of cogenerated energy) • CEM Engineering (thermal power engineering)

  5. Description of Proponents Operation Bayview Flowers Ltd. • Jordan Station • www.bayviewflowers.com • Established 1971 • 340,000 ft2 • Potted plants & bedding plants • High quality cut flower arrangements • Hot water heating system

  6. Description of Proponents Operation Vandermeer Greenhouses Ltd. • Niagara-On-The-Lake • www.vandermeergreenhouses.ca • Established 1976 • 280,000 ft2 • Specialists in spray chrysanthemums • Hot water heating system

  7. Description of Proponents Operation Morningside Greenhouses Ltd. • Beamsville • Established 1992 • 100,000 ft2 • Cut lilies (year round) • Heating system is steam/hot water hybrid

  8. Description of Electrical Supply Bayview Flowers Ltd. • Supplied at 27.6 kV (3 phase). • 1,000 kVA transformer (wye-wye). • 600 V distribution bus (2,000 A; 50 kA). • Secondary metered. • 180 kW emergency genset.

  9. Description of Electrical Supply Vandermeer Greenhouses Ltd. • Supplied at 27.6 kV (3 phase). • 1,000 kVA transformer (wye-wye). • Secondary metered. • 600 V distribution bus (1,200 A; 18 kA). • Distribution bus being upgraded to 50 kA. • 200 kW emergency genset.

  10. Description of Electrical Supply Morningside Greenhouses Ltd. • Supplied at 4.8 kV (single phase). • 167 kVA transformer. • Secondary metered. • Two (2) emergency gensets (190 kW; 122 kW). • Loads served off two (2) buses.

  11. Description of Biogas Project Bayview Flowers Ltd. • 1,200 m3 Primary Digester. • 1,200 m3 Secondary Digester and storage of both biogas & digestate. • 15 m3 dry feeder (TMR type). • Biogas Cogeneration System (250 kWe and 250 kWt). • Retrofit an existing boiler to burn biogas (with biogas blower).

  12. Description of Biogas Project Bayview Flowers Ltd.

  13. Description of Biogas Project Vandermeer Greenhouses Ltd. • 1,526 m3 Primary Digester. • 1,526 m3 Secondary Digester. • 3,184 m3 digestate storage. • 30 m3 Dry Feeder. • Biogas Cogeneration System (335 kWe and 400 kWt). • 40 m3 buried tank (for liquid input). • Digestate separator. • Remote monitoring & control via Internet.

  14. Description of Biogas Project Morningside Greenhouses Ltd. • 1,526 m3 Primary Digester. • 1,780 m3 Secondary Digester and storage of both biogas & digestate. • 15 m3 dry feeder (TMR type). • Biogas Cogeneration System (1900 kWe and 320 kWt). • Remote monitoring & control via Internet.

  15. LDC and LDC Approval Bayview Flowers Ltd. • LDC was Peninsula West Utilities Ltd. at the time. • LDC is now Niagara Peninsula Energy Inc. • Application was based on 1 MWe (ultimate). • Request to connect submitted August, 2006. • Need for CIA waived December, 2006. • 1 MWe much less than 50% of historic minimum feeder load. • No remote trip needed. • Metering configuration changed for two (2) meters (Series Metered).

  16. LDC and LDC Approval Bayview Flowers Ltd. Metering Configuration – Series Metered, Secondary Metered

  17. LDC and LDC Approval Vandermeer Greenhouses Ltd. • LDC is NOTL Hydro. • CIA application submitted October, 2007. • CIA based on 750 kWe. • NOTL Hydro retained AESI to do CIA. • CIA report completed on January, 2008. • No modification required.

  18. LDC and LDC Approval Morningside Greenhouses Ltd. • LDC is Grimsby Power. • CIA application submitted January, 2008. • Grimsby Power retained Dromey Design Inc. (Ian Dromey) to complete CIA. • CIA report received May, 2008. • No remote trip required.

  19. Conclusions • Two (2) CIA’s took 3-4 months to process • In one case, CIA was not needed at all. • Another LDC recently waived need for CIA for a 250 kWe system on a 27.6 kV 3 phase feeder in Southwestern Ontario. • Each LDC liked our proposed protection and control system (based on SEL-451). • In each case, we had/have to demonstrate that we are off-line in <160 ms (in event of abnormal conditions on LDC feeder).

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