FORM B

EMBEDDED GENERATION CONNECTION IMPACT ASSESSMENT APPLICATION FORM

This Application Form is for Net Metering, Load Displacement or Energy Storage Generators with a project size over 10 kilowatts (kW) and who are applying for a Connection Impact Assessment (“CIA”) to ENWIN Utilities Ltd. Given below is the typical information required from Embedded Generators (“EG”) for the Connection Assessment and Connection Cost Estimate. As each EG facility will be unique (generator size, characteristics, type, physical location, connection arrangement, and point of connection to the system), additional information may be required. ENWIN shall inform the EG if additional information is needed during the Connection Assessment phase. Section A – Project Information 1. Date: (yyyy/mm/dd) 2. Project Name: 3. Project Dates:

Proposed Start of Construction: (yyyy/mm/dd)

Proposed In-Service Date: (yyyy/mm/dd) 4. Project Size:

Number of Units

Rating of Each Unit kW

Proposed Total Capacity kW

Number of Phases ☐ Single Phase ☐ Three Phase 5. Project Address: 6. Project Type

☐ Solar (PV) ☐ Gas Turbine ☐ Wind ☐ Fuel Cell

☐ Diesel Engine ☐ Water ☐ Biomass ☐ CHP/Cogen

☐ Other (please specify)

Form B – CIA Application Form Revision 3 – February 7, 2018 | ENWIN Utilities Ltd. | Page 1 of 12

7. Mode of Operation:

☐ 24h or Base Load

☐ Peak Period Only

☐ Load Displacement

☐ Emergency Backup

Will Emergency Backup generator be synchronized to ENWIN’s system at any time?

☐ Yes ☐ No

☐ Other (please specify) Section B – Contact Information

8. LDC Contact Information:

LDC Name: ENWIN Utilities Ltd.

Contact Person: Robert Spagnuolo, P.Eng

Mailing Address: P.O. Box 1625 Stn A.

4545 Rhodes Dr.

Windsor, ON N9A 5T7

Telephone: (519) 251-7300 x 222

Fax: (519) 251-7309

E-mail: rspagnuolo@enwin.com

9. Project Owner:

Company / Person:

Contract Name:

Mailing Address:

Telephone:

Fax:

E-mail:

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10. Project Developer (if different than Project Owner):

Company / Person:

Contract Name:

Mailing Address:

Telephone:

Fax:

E-mail: 11. Electrical Engineering Consultant:

Company / Person:

Contract Name:

Mailing Address:

Telephone:

Fax:

E-mail: Section C –Specifications 12. Generator / Energy Storage Characteristics

a. Number of units

b. Manufacturer

c. Type or Model No.

d. Rated capacity of each unit:

Gross: kW kVA

Net: kW kVA

NOTE: If unit output is different, please fill in additional sheets to provide the information.

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e. Rated frequency: Hz

f. Number of phases: ☐ Single Phase ☐ Three Phase

g. Type of generating unit:

☐ Synchronous ☐ Induction ☐ Static Power Converters (SPC) / Inverter

☐ Other (please specify)

h. For Synchronous Units:

i. Generation Voltage kV

ii. Rated current A

iii. Rated power factor of generating units(s) pu

iv. Type and characteristics of exciter

v. Minimum power limit for stable operation kW

vi. Unsaturated reactances on: kVA Base

kV Base

Direct axis synchronous reactance: Xd pu

Direct axis transient reactance Xd’ pu

Direct axis subtransient reactance Xd” pu

Negative sequence reactance, X2 pu

Zero sequence reactance, X0 pu

vii. Limits of range of reactive power:

Lagging (over-excited) kVAR

Leading (under-excited) kVAR

viii. Provide a plot of generator capability curve (MW output vs MVAR)

Drawing Number: Rev.

i. For Induction Units:

i. Generator voltage kV

ii. Rated design power factor pu

iii. Rated speed RPM

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iv. Slip regulation interval %

v. Rated slip %

vi. Actual power factor at delivery point (after pf correction)

Full output pu

No output pu

vii. Generator reactive power requirements:

Full output kVAR

No output kVAR

viii. Total power factor correction installed: kVAR

Number of regulating steps

Power factor correction switched per step kVAR

Power factor correction capacitors are automatically

switched off when generator breaker opens: ☐ Yes ☐ No

ix. Starting inrush current limited to:

(multiple of full load current) p.u.

x. Locked rotor current (at rated voltage) p.u.

xi. Fault current vs. time curves

(for various types of faults near the generator) Dwg. No.

j. For SPC / Inverter type units:

i. Terminal voltage V

ii. Line - interactive type

(i.e. intended for parallel operation with electric utility) ☐ Yes ☐ No

iii. Power Factor

iv. Battery backup provided ☐ Yes ☐ No

v. Maximum fault current for terminal faults A

vi. Standards according to which built

vii. Provide Manufacturer’s technical brochure and

specification sheet: Doc. No 13. Interface Step-Up Transformer Characteristics:

a. Transformer rating kVA

b. Manufacturer

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c. Nominal voltage of high voltage winding kV

d. Lightning impulse level of high voltage winding, full

wave kV

e. Nominal voltage of low voltage winding kV

f. Number of phases ☐ Single ☐ Three

g. Construction ☐ Core ☐ Shell

h. Number of legs kV

i. Impedances on: kVA base kV Base

R: pu X: pu

j. High voltage winding connection ☐ Delta ☐ Star

Grounding method of star connected high voltage winding neutral

☐ Solid ☐ Ungrounded ☐ Impedance: R: Ω X: Ω

k. Low voltage winding connection ☐ Delta ☐ Star

Grounding method of star connected high voltage winding neutral

☐ Solid ☐ Ungrounded ☐ Impedance: R: Ω X: Ω

l. Tapping range, location and type of tap changer

m. Expected tap settings

HV: kV

LV: kV

NOTE: The term “High Voltage” refers to the connection voltage to LDC’s distribution system and “Low Voltage” refers to the generation or any other intermediate voltage.

14. Intermediate Transformer Characteristics (if applicable)

a. Transformer rating kVA

b. Manufacturer

c. Nominal voltage of high voltage winding kV

d. Nominal voltage of low voltage winding kV

e. Lightning impulse level of high voltage winding, full wave kV

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f. Nominal voltage of low voltage winding kV

g. Number of phases ☐ Single ☐ Three

h. Construction ☐ Core ☐ Shell

i. Number of legs kV

j. Impedances on: kVA Base

R: pu

kV Base

X: pu

k. High voltage winding connection ☐ Delta ☐ Star

Grounding method of star connected high voltage winding neutral

☐ Solid ☐ Ungrounded ☐ Impedance: R: Ω X: Ω

l. Low voltage winding connection ☐ Delta ☐ Star

Grounding method of star connected low voltage winding neutral

☐ Solid ☐ Ungrounded ☐ Impedance: R: Ω X: Ω

m. Tapping range, location and type of tap changer

n. Expected tap settings

HV: kV

LV: kV

NOTE: The term “High Voltage” refers to the intermediate voltage that is input to the interface step-up transformer, and “Low Voltage” refers to the generation voltage.

Form B – CIA Application Form Revision 3 – February 7, 2018 | ENWIN Utilities Ltd. | Page 7 of 12

Section D – Load Information 15. Load Information

a. Maximum load of the facility kVA

kW

b. Maximum load current (referred to the nominal voltage at

the connection point to Hydro One system) A

c. Maximum inrush current (referred to the nominal voltage at

the connection point to Hydro One system) A

Expected: Total Generation Total Internal

Consumption Total Output

(to distribution system) (a) (b) (a-b)*

kWh Peak kW kWh Peak kW kWh Peak kW January

February

March

April

May

June

July

August

September

October

November

December

*This value would be negative when the generators are not in operation or when the internal consumption exceeds generation Section E – Attachments 16. Single Line Diagram (SLD) Provide detailed and updated SLD of the EG Facility including the interface point to the distribution

system. This drawing shall include, but is not limited to: Electrical equipment at the EG Facilities, their principal ratings, impedances, winding

configurations, neutral grounding methods, etc. Protective relaying, synchronizing and revenue metering arrangements. The device

numbers should be in accordance with those adopted in the ANSI / IEEE Standard C27.2 – Form B – CIA Application Form

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1979: IEEE Standard Electrical Power System Device Function Numbers. The SLD shall include the following as applicable:

o Disconnecting device at the interface (connection) point with the ENWIN system o Load break switches o Fuses o Circuit breakers o Interface step-up transformer o Intermediate transformer(s) o CTs and VTs (quantity, location, connection, ratio) o Generators (rotating / static) o Power factor correction capacitors and their switching arrangements (particularly for

induction units) o Motors o Power Cables o Surge Arrestors o Any other relevant electrical equipment

SLD Drawing Number: Rev. 17. Location and Site Plan Provide a site plan outlining existing facilities and proposed embedded generator location. The site

plan should include approximate line route for connection to ENWIN, as well as roads, lot numbers, and nearby power lines. Please provide a meter room layout showing locations of all equipment and approximate clearances.

Drawing Number: Rev. 18. Protection Philosophy Provide a document describing the protection philosophy for detecting and clearing: o Internal faults within the EG facility

o External phase and ground faults (in LDC’s distribution system) o Certain abnormal system conditions such as over/under voltage, over/under frequency,

open phase(s) o Islanding o Include a tripping matrix or similar information in the document

EG shall install utility grade relays for the interface protection. The protection design shall incorporate facilities for testing and calibrating the relays by secondary injection.

Document Number: Rev. 19. Connection and Operation Information

a. Synchronizing and paralleling scheme / procedure Doc./Dwg No.

b. The generator is designed with auto-connection scheme ☐ Yes ☐ No

Form B – CIA Application Form Revision 3 – February 7, 2018 | ENWIN Utilities Ltd. | Page 9 of 12

Section F – Attached Documents Document List

Item No. Description Reference No. No. of

Pages

1

2

3

4

5

6

7

8

9

10

Drawing List

Item No. Description Reference No. No. of

Pages

1

2

3

4

5

6

7

8

9

10

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Appendix A – Supplemental Information for Energy Storage Facilities What will be the control strategy of the Energy Storage Facility:

☐ Peak Shaving

a. Description of Control Strategy

b. When Operating as a Load

i. Switch in time

ii. Switch out time

iii. Load (kW peak) kW

iv. Load (kVAR peak) kVAR

v. Load (kVAR peak leading/lagging) ☐ Leading ☐ Lagging

c. When Operating as a Generator

i. Switch in time

ii. Switch out time

iii. Generation (kW peak) kW

iv. Generation (kVAR peak) kVAR

v. Generation (kVAR peak leading/lagging) ☐ Leading ☐ Lagging

☐ Dynamic VAR Support

a. Description of Control Strategy

b. Switch in condition

c. Switch out condition

d. Generation (kW peak) kW

e. Generation (kVAR peak) kVAR

f. Generation (kVAR peak leading/lagging) ☐ Leading ☐ Lagging

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☐ Frequency Support

a. Description of Control Strategy

b. Switch in condition

c. Switch out condition

d. Generation (kW peak) kW

e. Generation (kVAR peak) kVAR

f. Generation (kVAR peak leading/lagging) ☐ Leading ☐ Lagging

☐ Other

NOTE: please attach a detailed description of the proposed control mode

Hydro One and ENWIN reserves the right to modify the control strategy as part of its Connection Assessment Appendix B – Supplemental Information for Load Displacement Facilities Minimum Generation Output information required for Load Displacement Generation Facilities Load of Facility Generation Output

kW kVAR Lead/Lag kW kVAR Lead/Lag

Minimum Load

Maximum Load

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