SO-1862 Electircal Infrastructure for EV Chargers and BESS Addendum 2.pdf

PDF 931 KB Posted Nov 10, 2026

Attached to: SO-1862 Electrical Infrastructure/install chargers/bess
Solicitation number: RFP LSD 270000000132 3
Issued by: Grand Traverse County, Michigan

About this file

Written by GovTribe AI · Nov 11, 2026

This is a Pre-Bid Addendum No. 2 issued by Lansing Public School District, located in Lansing, Michigan, for construction of electrical infrastructure to support Battery Energy Storage Systems (BESS) and electric vehicle (EV) chargers across four school facilities. The project encompasses North Environmental Science Magnet School, Pattengill Biotechnical Magnet School, Wexford Montessori Academy, and Cavanaugh STEAM Elementary School. The addendum, prepared by CTC Engineering, LLC, clarifies contract documents based on bidder inquiries and includes preliminary one-line electrical diagrams for each school site (Sheets E-1, E-3, E-5, and E-7). The addendum specifies that the attached drawings are issued for bidding purposes only, with site-specific, construction-level drawings to be issued after the bid date. No sections of the project manual are reissued with this addendum.

The electrical specifications detailed in the one-line diagrams indicate varying system configurations across the four schools, with EV charger capacities ranging from 120 kilowatts to 240 kilowatts and BESS control systems integrated with existing solar panel infrastructure. Each school location features different electrical configurations, including main distribution panels, automatic transfer switches, surge protection devices, and transformer specifications. All diagrams are marked as preliminary and not to be used for construction, with notes indicating that the one-line diagrams must be field-verified by the engineer prior to final implementation. The document does not contain information regarding pricing, contract award dates, response deadlines, or specific funding sources.

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SO-1862 Electircal Infrastructure for EV Chargers and BESS.pdf	PDF	Nov 10, 2026
SO-1862 Electircal Infrastructure for EV Chargers and BESS Addendum 1.pdf	PDF	Nov 10, 2026

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PRE-BID ADDENDUM NO. 2

TO SPECIFICATION 28172.01

OWNER: Lansing Public School District

519 West Kalamazoo Street

Lansing, Michigan 48911

PROJECT: Four Battery Energy Storage Systems & EV Chargers Project

North Environmental Science Magnet School

Pattengill Biotechnical Magnet School

Wexford Montessori Academy

Cavanaugh STEAM Elementary School

CONTRACT FOR: Construction

ENGINEER: CTC Engineering, LLC

3915 Research Park Dr., Ste. A-8

Ann Arbor, Michigan 48108

INTENT: The following is intended to be a clarification to the Contract Documents based upon the questions asked in review of the documents.

DRAWINGS: The following drawings accompany this Addendum:

• Sheet 28172.01, E-1, E-3, E-5 and E-7

PROJECT MANUAL: -No sections are reissued with this Addendum-

CLARIFICATIONS:

A. The attached drawings are issued for bidding purposes. Site specific, construction drawings will be issued after the bid date.

- END OF PRE-BID ADDENDEM #2 -

300KVA

LBW&L

EXISTING

SOLAR PANELS

400A

EMDP-400A

THRU T-1

CUSTODIAL

150A20A

VUV-B

CLASSROOM

20A

VUV-A

CLASSROOM

20A

VUV-A

CLASSROOM

20A

VUV-A

CLASSROOM

15A

PUMP 2

BOILER

125A

EBCP08-125A

THRU T-2

CUSTODIAL

CONTINUED

BELOW

CONTINUED

FROM ABOVE

20A

VUV-B

CLASSROOM

150A

SURGE

PROTECTION

15A

PUMP 1

BOILER

20A

VUV-B

CLASSROOM

45A

RTU

ABOVE

GYM

20A

VUV-B

CLASSROOM

400A

ML1 400A

CUSTODIAL

100A200A

BESS

CONTROL

EV CHARGER

800A, 480/277V, 3P, 4W

120KW

4-#250KCMIL

XHHW CU &

1-#2G IN 3-1/2"C

4-#3 XHHW CU &

1-#8G IN 2"C

NEW

800:5 CTs

2 SETS OF 2"C WITH

4-#1/0 XHHW CU &

1-#6G IN EACH

NOTES:

1. ONE-LINE TO BE FIELD-VERIFIED BY THE ENGINEER.

P :\A

_A A

P ro je ct s\

La ns in g P ub lic

S ch oo l D is tr ic t S

O -1

6_ D

W G

\E -1

C av an au gh

O ne

-L in e.

dw g

/1 0/

M ga vi n.

sh af er

DRAWN

CHECKED

APPROVED

PLOT SIZE

REV.

REV. DESCRIPTION DATE

FOR REVIEW 10/14/2026

BATTERY ENERGY

STORAGE SYSTEM/

BUS EV CHARGER

E-1

GRS

DRAWING NO.

ANSI B - 11" X 17"

10/29/2026

11/10/2026

FOR REVIEW

SCALE

This drawing as an instrument of service, remains the property of CTC Engineering.

Any changes, publications, or unauthorized use is prohibited unless expressly approved.

300 W CAVANAUGH RD

PROJECT NUMBER

10/10/2026

28172.01 5 ---- ----

LANSING, MI 48910

CAVANAUGH ELEMENTARY

SCHOOL

ONE-LINE DIAGRAM

Engineering

3915 Research Park Drive, Suite A-8 Ann Arbor, MI 48108

Office (734) 222-9951 - Fax (734) 222-9957

BATTERY ENERGY STORAGE SYSTEM/EV CHARGER ONE-LINE DIAGRAM

CAVANAUGH ELEMENTARY SCHOOL

PRELIMINARY

NOT TO BE USED

FOR CONSTRUCTION

500KVA

BESS

CONTROL

EXISTING

SOLAR PANELS

XXA

800A

MAIN

60A

ATS-1

100A

ESPD-02

BP-B

100A

ATS-2

100A

ESPD-03

200A

CONDENSER

UNIT #7

ESDP-06

200A

BP-E

400A

ESDP-05

BP-D

400A

ESDP-04

BP-E

800A, 480/277V, 3P, 4W

100A300A

240KW

EV CHARGER

4-#400KCMIL

XHHW CU &

1-#1/0G IN 3-1/2"C

4-#3 XHHW CU &

1-#8G IN 2"C

NEW

1000:5 CTs

2 SETS OF 2"C WITH

4-#1/0 XHHW CU &

1-#6G IN EACH

NOTES:

1. ONE-LINE TO BE FIELD-VERIFIED BY THE ENGINEER.

P :\A

_A A

P ro je ct s\

La ns in g P ub lic

S ch oo l D is tr ic t S

O -1

6_ D

W G

\E -3

N or th

O ne

-L in e.

dw g

/1 0/

M ga vi n.

sh af er

DRAWN

CHECKED

APPROVED

PLOT SIZE

REV.

REV. DESCRIPTION DATE

FOR REVIEW 10/14/2026

BATTERY ENERGY

STORAGE SYSTEM/

BUS EV CHARGER

E-3

GRS

DRAWING NO.

ANSI B - 11" X 17"

10/29/2026

11/10/2026

FOR REVIEW

SCALE

This drawing as an instrument of service, remains the property of CTC Engineering.

Any changes, publications, or unauthorized use is prohibited unless expressly approved.

333 E MILLER RD

PROJECT NUMBER

11/10/2026

28172.01 5 ---- ----

LANSING, MI 48911

NORTH ELEMENTARY

SCHOOL

ONE-LINE DIAGRAM

Engineering

3915 Research Park Drive, Suite A-8 Ann Arbor, MI 48108

Office (734) 222-9951 - Fax (734) 222-9957

PRELIMINARY

NOT TO BE USED

FOR CONSTRUCTION

BATTERY ENERGY STORAGE SYSTEM/EV CHARGER ONE-LINE DIAGRAM

NORTH ELEMENTARY SCHOOL

750KVA

EXISTING

SOLAR PANELS

60A

SPD

XXA30A

P-2

150A

GEN

ATS

60A

P-3

250A

LP-A

70A

SPARE

250A

LP-B

CONTINUED

BELOW

CONTINUED

FROM ABOVE

60A

P-4

800A

CHILLER

60A

SPARE

70A

T-K

250A

LP-C

20A

SPARE

15A

AHU-3

CONTINUED

BELOW

30A

SPARE

250A

LP-D

CONTINUED

FROM ABOVE

30A

AHU-2

250A

SPARE

15A

AHU-5

150A

SPARE

15A

AHU-4

1600A

MAIN

800A, 480/277V, 3P, 4W

BESS

CONTROL

100A300A

240KW

EV CHARGER

4-#400KCMIL

XHHW CU &

1-#1/0G IN 3-1/2"C

4-#3 XHHW CU &

1-#8G IN 2"C

NEW

800:5 CTs

2 SETS OF 2"C WITH

4-#1/0 XHHW CU &

1-#6G IN EACH

NOTES:

1. ONE-LINE TO BE FIELD-VERIFIED BY THE ENGINEER.

P :\A

_A A

P ro je ct s\

La ns in g P ub lic

S ch oo l D is tr ic t S

O -1

6_ D

W G

\E -5

P at te ng ill

O ne

-L in e.

dw g

/1 0/

M ga vi n.

sh af er

DRAWN

CHECKED

APPROVED

PLOT SIZE

REV.

REV. DESCRIPTION DATE

FOR REVIEW 10/14/2026

BATTERY ENERGY

STORAGE SYSTEM/

BUS EV CHARGER

E-5

GRS

DRAWING NO.

ANSI B - 11" X 17"

10/29/2026

11/10/2026

FOR REVIEW

SCALE

This drawing as an instrument of service, remains the property of CTC Engineering.

Any changes, publications, or unauthorized use is prohibited unless expressly approved.

815 N FAIREVIEW AVE

PROJECT NUMBER

11/10/2026

28172.01 5 ---- ----

LANSING, MI 48912

PATTENGILL BIOTECHNICAL

MAGNET SCHOOL

ONE-LINE DIAGRAM

Engineering

3915 Research Park Drive, Suite A-8 Ann Arbor, MI 48108

Office (734) 222-9951 - Fax (734) 222-9957

BATTERY ENERGY STORAGE SYSTEM/EV CHARGER ONE-LINE DIAGRAM

PATTENGILL BIOTECHNICAL MAGNET SCHOOL

PRELIMINARY

300KVA

600A

120/208V

225KVA

480/277V

200A 100A

BESS

CONTROL

EV CHARGER

EXISTING

SOLAR PANELS

??A

EBCP06

XXA??A

BOILER

EBCP04 POWER

MONITOR

70A

NEW

ADDITION

PANEL A

50A

NEW

ADDITION

PANEL D

150A

SOUTH MZ

150A UNIT

CONTINUED

BELOW

CONTINUED

FROM ABOVE

NORTH MZ

225A

PANEL B

100A

EBCP10 KILN

400A

UNLABELED

225A

175A

RTU

800:5

??A ??A

150A 100A

800A

MAIN

800A, 120/208V, 3P, 4W

120KW

4-250KCMIL

XHHW CU &

1-#2G IN 3-1/2"C

4-#3 XHHW CU &

1-#8G IN 2"C

4-300KCMIL

XHHW CU &

1-#2G IN 3-1/2"C

3 SETS 3-1/2"C

WITH 4-#3/0

XHHW CU &

1-#2G IN EACH

NOTES:

1. ONE-LINE TO BE FIELD-VERIFIED BY THE ENGINEER.

P :\A

_A A

P ro je ct s\

La ns in g P ub lic

S ch oo l D is tr ic t S

O -1

6_ D

W G

\E -7

W ex fo rd O ne -L in e.

dw g

A M ga vi n.

sh af er

DRAWN

CHECKED

APPROVED

PLOT SIZE

REV.

REV. DESCRIPTION DATE

FOR REVIEW 10/14/2026

BATTERY ENERGY

STORAGE SYSTEM/

BUS EV CHARGER

E-7

GRS

DRAWING NO.

ANSI B - 11" X 17"

10/29/2026

11/10/2026

FOR REVIEW

SCALE

This drawing as an instrument of service, remains the property of CTC Engineering.

Any changes, publications, or unauthorized use is prohibited unless expressly approved.

5217 WEXFORD RD

PROJECT NUMBER

11/10/2026

28172.01 5 ---- ----

LANSING, MI 48911

WEXFORD MONTESSORI

ACADEMY

ONE-LINE DIAGRAM

Engineering

3915 Research Park Drive, Suite A-8 Ann Arbor, MI 48108

Office (734) 222-9951 - Fax (734) 222-9957

BATTERY ENERGY STORAGE SYSTEM/EV CHARGER ONE-LINE DIAGRAM

WEXFORD MONTESSORI ACADEMY

PRELIMINARY

E-1 - Cavanaugh One-Line.pdf

Sheets and Views

ANSI B - 11x17 PDF

E-3 - North One-Line.pdf

Sheets and Views

ANSI B - 11x17 PDF

E-5 - Pattengill One-Line.pdf

Sheets and Views

ANSI B - 11x17 PDF

E-7 - Wexford One-Line.pdf

Sheets and Views

ANSI B - 11x17 PDF

File details come from the government source that posted it. Updated Nov 11, 2026.