Attach_03_REDW_Solar_Plans.pdf

1. THIS PLAN SET IS PROVIDED FOR INFORMATIONAL PURPOSES AND DOES NOT

CONSTITUTE AND ENGINEERING DESIGN. THIS PLAN SET IS PROVIDED TO SHOW

POTENTIAL BIDDERS THE ASSUMED EXISTING CONDITIONS AND THE OVERALL

INTENT OF THE PROJECT.

2. PER THE SPECIFICATIONS, THE INTENT OF THIS PROJECT IS TO REMOVE AND

SALVAGE THE EXISTING PV SYSTEM AT THE NORTH OPERATION CENTER AND

REPLACE IT WITH A NEW SYSTEM WITH INCREASED CAPACITY BUT SAME

GENERAL FUNCTIONALITY AND FOOTPRINT. IN GENERAL EXISTING EQUIPMENT

WILL BE REMOVED AND REPLACED WITH SIMILAR EQUIPMENT AT THE SAME

LOCATIONS OF EXISTING.

3. EXISTING EQUIPMENT TO BE REPLACED INCLUDES, BUT IS NOT LIMITED TO,

SOLAR PANELS (X200), COMBINER BOXES, DISCONNECTS, AND POWER

INVERTERS. THE CONTRACTOR SHALL ALSO REMOVE AND REPLACE ELECTRICAL

CONDUITS AND CABLES (EXCEPT UNDERGROUND CONDUIT) AS REQUIRED TO

ACCOMMODATE THE REPLACEMENT SYSTEM PER ALL APPLICABLE CODES.

4. THE CONTRACTOR SHALL FULLY INSPECT THE EXISTING SITE AND VERIFY ALL

EXISTING CONDITIONS.

5. THE CONTRACTOR SHALL PREPARE AND SUBMIT A PV SYSTEM DESIGN SHOWING

THE LAYOUT AND INSTALLATION OF THE NEW SYSTEM PER THE SPECIFICATIONS.

THE CONTRACTOR DOES NOT NEED TO REEVALUATE THE SYSTEM FOR SOLAR

EXPOSURE OR COST-BENEFIT. PRIOR ESTIMATES ARE PROVIDED IN ATTACHMENT

A OF THE SPECIFICATIONS.

6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING A FULLY

FUNCTIONAL PV SYSTEM MEETING THE REQUIREMENTS OF THE SPECIFICATIONS,

EQUIPMENT MANUFACTURER AND APPLICABLE BUILDING AND ELECTRIC CODES.

7. APPLICABLE RECORD DRAWINGS, PRODUCT SUBMITTALS, AND DESIGN

INFORMATION ARE PROVIDED AS AN ATTACHMENT TO SHOW PERSPECTIVE

CONTRACTOR INFORMATION ABOUT THE EXISTING SYSTEM.

8. ALL ELECTRICAL WORK SHALL BE COMPLETED BY A LICENSED ELECTRICIAN.

1. IN GENERAL, EXISTING STRUCTURES, EQUIPMENT, AND FACILITIES ARE SHOWN IN LIGHT LINE WEIGHTS. NEW STRUCTURES, EQUIPMENT, AND FACILITIES ARE SHOWN IN HEAVY LINE WEIGHTS.

2. ALL DISTURBED ASPHALT, GRASS, DRAINAGE PATTERNS, ROADSIDE DITCHES, TRAILS AND GRADE

SHALL BE RESTORED TO ITS ORIGINAL CONDITION OR AS CALLED FOR ON THE CONTRACT

DOCUMENTS, WHICHEVER IS MORE STRINGENT.

3. SCHEDULE ALL EXISTING UTILITY LINE SHUTDOWNS WITH THE CONTRACTING OFFICER.

4. ALL COSTS ASSOCIATED WITH REPAIR AND/OR REPLACEMENT OF EXISTING UTILITIES, DUE TO

CONTRACTOR'S ACTIVITIES, SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR.

5. FIELD LOCATE ALL EXISTING UTILITIES AND ALL OTHER SURFACE AND SUB-SURFACE FEATURES

PRIOR TO CONSTRUCTION. ANY FEATURES DAMAGED BY CONTRACTOR'S ACTIVITIES SHALL BE

REPLACED TO PRE-CONSTRUCTION CONDITION AT NO ADDITIONAL EXPENSE TO THE GOVERNMENT.

ANY FIELD LOCATED EXISTING CONDITIONS IMPACTING NEW WORK SHALL BE IMMEDIATELY BROUGHT

TO THE CONTRACTING OFFICER'S ATTENTION.

1. THE INTENT OF THIS PROJECT IS TO REPLACE THE EXISTING PV PANELS WITH

PANELS OF SIMILAR SIZE, LAYOUT, AND DIMENSION. EXISTING PANELS ARE

STANDARD 60-CELL PANELS INSTALLED IN 2009.

2. IF DETERMINED TO BE FEASIBLE, THE EXISTING MOUNTING HARDWARE MAY BE

REUSED. HOWEVER, VARIATIONS IN MANUFACTURERS MAY REQUIRE NEW

MOUNTING HARDWARE AND SLIGHT ADJUSTMENTS TO THE CONFIGURATION.

3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING IF THE EXISTING

MOUNTING HARDWARE CAN BE REUSED ACCORDING TO THE SPECIFICATIONS.

PRIOR SUBMITTALS SHOWING THE SPECIFICS OF THE EXISTING MOUNTING

HARDWARE ARE PROVIDED AS AN ATTACHMENT.

4. IF THE CONTRACTOR DETERMINES THAT THE EXISTING MOUNTING HARDWARE

CANNOT BE REUSED THE EXISTING HARDWARE SHALL BE REMOVED AND

REPLACED AT NO ADDITIONAL EXPENSE TO THE GOVERNMENT. IN ADDITION,

EXISTING ROOF PENETRATIONS SHALL BE PATCHED.

5. THE GOVERNMENTS PREFERENCE IS TO REUSE THE EXISTING HARDWARE TO

AVOID ADDITIONAL ROOF PENETRATIONS. HOWEVER, IT IS UNDERSTOOD THAT

THAT THIS MAY NOT BE FEASIBLE DEPENDING ON THE PRODUCT CHOSEN BY THE

CONTRACTOR.

1616 0 32

HORIZ.

PV PANELS (X144)

EXISTING PV PANELS (X156)

MAINTENANCE INVERTER

(IN MEZZANINE)

WATERHOUSE INVERTER

(GROUND FLOOR))

COMBINER PANEL

MAIN SERVICE PANEL (E)

XFRM (E)

MANUAL TRANSFER SWITCH (E)

PV DISCONNECTS

GENERATOR (E)

WAREHOUSE PHOTO

MAINTENANCE WEST PHOTO

MAINTENANCE EAST PHOTO

COMBINER PANEL

ACCESS FROM AUBELL LANE VIA ELK VALLEY ROAD

2" UNDERGROUND CONDUIT

FROM WAREHOUSE TO PV DISCONNECT.

REMOVE (PULL) WIRE AND REUSE CONDUIT.

ONLY USE NEW WIRING SIZE TO MAXIMUM ALLOWED BY CODE.

IF NEW PANEL OUTPUT IS GREATER THAN WIRE CAPACITY

REDUCE NUMBER OF PV PANELS. NPS DOES NOT

INTEND TO EXCAVATE PARKING LOT.

WAREHOUSE BUILDING

MAINTENANCE BUILDING

2525 0 50

HORIZ.

MAINTENANCE

PV ARRAY

WAREHOUSE

PV ARRAY

WAREHOUSE

INVERTER

MAINTENANCE

INVERTER

PV DISCONNECTPV DISCONNECT MTS (E)

UTILITY

277/480V

3PH

MAIN SWITCH-

BOARD (E)

PV DISCONNECTPV DISCONNECT

XFMR(E)

PANEL

PMDA

277/480 V

PANEL MSB

120/208 V

ENTRY &

METERING

PANEL

BRANCH CIRCUITS

TO DISTRIBUTION

BRANCH CIRCUITS

TO DISTRIBUTION

MAIN SWITCHBOARD

(3 PANELS)

GENERATOR

MTS

PV DISCONNECTS

XFRM

1. THIS ONE-LINE DIAGRAM REPRESENTS A GENERALIZED SCHEMATIC OF EXISTING

ELECTRICAL SYSTEM. THE DIAGRAM SHOULD NOT BE TAKEN AS COMPLETE.

2. ITEMS IN HEAVIER LINE WEIGHT INDICATE THE PORTION OF THE ELECTRICAL

SYSTEM THAT ARE TO BE REPLACED (ALL COMPONENTS BETWEEN PV PANELS

AND MTS.)

3. THE GENERATOR AND TRANSFER SWITCH WERE ADDED SEVERAL YEARS AFTER

THE CONSTRUCTION OF THE BUILDINGS AND DO NOT APPEAR IN THE RECORD

DRAWINGS.

4. FIELD VERIFY CONNECTION WHICH CONNECTION EXISTS. PV PANELS ARE EITHER

CONNECTED VIA THE MANUAL TRANSFER SWITCH, OR BACK-FEED TO THE 2ND

PANEL. ORIGINAL CONNECTION WAS TO THE 2ND PANEL, HOWEVER THE

CONNECTION POINT MAY HAVE CHANGED WHEN THE GENERATOR WAS

INSTALLED. REMOVE AND REPLACE CIRCUIT BREAKER AT DETERMINED

CONNECTION POINT.

METER (E)

METER

SEE NOTE 4