Site Selection Process for Rooftop Projects Site Selection Flow Chart 1 Contents 2 3 Screen for Techno Commercial Parameters Prioritize Sites P. 2 | SunEdison Confidential 1. Site Selection flow chart P. 3 | SunEdison Confidential Site Survey Report P. 4 | SunEdison Confidential 2.0 Screen for Techno Commercial Parameters 2.1 2.2 2.3 2.4 Available Area for PV Roof Type & Analysis Shading Analysis Site Development Plan P. 5 | SunEdison Confidential 2.1 Available Area for PV Metal sheet / RCC Roof: • Type of sheet • Dimensions of Roof • Length, Width • Slope Angle • Sheet Thickness • Obstacle Details • Roof Access Details • Roof Condition- Age of roof, permission for drilling • Existing LA details P. 6 | SunEdison Confidential 2.2 Roof Type & Analysis MODULES FIXING ARRAGEMENT ON TIN SHED WITH AL.RAILING RAILING ANALYSIS RESULTS - Using ANSYS AL.RAILING P. 7 | SunEdison Confidential 2.3 Shading Analysis P. 8 | SunEdison Confidential Location – Lonavala Railway Station, Maharashtra Geo-Co-ordinate - 18.750313, 73.406981 The aim of this report is to expose us for a better understanding about Shadow analysis for collector Building in the month of June and December. OVERALL TOP VIEW Date-21-Jun-2020 Date-21-Jun-2020 Time – 9:00AM P. 9 | SunEdison Confidential Time – 11:30 AM Date-21-Jun-2020 Time – 2:00 PM Date-21-Jun-2020 Time-4:00 PM Date-21-Dec-2020 Time-9:00 AM Date-21-Dec-2020 P. 10 | SunEdison Confidential Time-11:30 PM Date-21-Dec-2020 Time-02:00 PM Date-21-Dec-2020 Time-04:00 PM Date-21-Dec-2020 Conclusion: This site is morning [9:00 AM] to Evening [4:00 PM] the entire solar plant is completely shadow free area on Jun21 & Dec-21 P. 11 | SunEdison Confidential P. 12 | SunEdison Confidential 2.4 Site Development Plan • • • • • • • • • • • • Electrical SLD of Building EB Bill copy (Min for 1 year, monthly data) AutoCAD Master plan of the Roof / building Photos of every building and Roof ACDB, Inverter position LT Injection point Existing LT and HT meter DG set details LT panel details DG set details Transformer Ratings Proposed Earth Pit P. 13 | SunEdison Confidential 3.0 Prioritize Sites System Orientation P. 14 | SunEdison Confidential 3.0 Prioritize Sites Techno Commercial Parameters Significantly Hindered Hindered Neutral Positive Score Available Area for PV - - - 1 1 Roof Type & Age - - 0 - 0 Shading Analysis - - 1 1 System Orientation - - 0 Solar Irradiance - - 0 0 1 1 PLF 1 1 Site Development Plan 1 1 Total 5 Total score >2 selected and prioritized P. 15 | SunEdison Confidential 3.1 Design process flow chart Site survey report Electricity bills New Site New site Validation of proposed plant capacity in kWp Shadow assessment report and estimate shadow free area Detailed Engineering Electrical Mechanical Civil GA layout SLD Cable, Earth & LA ACDB MMS Walk way Safety Line Cable tray Foundations Earthing Lightening BOM- Electrical & Mech. PMC SCM P. 16 | SunEdison Confidential 3.2 Design Validation Check List Item Design Validation check list 1. Module Wattage as per customer spec 2. Module Certificate 3. Module frame size and structure compatibility 4. Module series parallel configuration as per Inverter / JB / Electronics Solar Module 5. Module mounting hardware type & size 6. Module Interconnection cable length & connector (Mc4 compatible) 7. RFID label inside laminate / outside 8. Check Bird spike fixing arrangement if any, either side frame / top frame Structure 9. Bird spike fixing hardware / adhesive 10. Check Array layout for module cleaning & approach ( O&M of modules) 1. RCC type / Sheet roof 2. Type of sheet, Sheet thickness, Sheet profile 3. Roof sheet Tilt angle 4. Check the required hardware called in BOM / WBS 5. Check the foundation bolt size & quantity 6. Check the drawing for foundation size as per location 7. Check if any theft proof hardware required, P. 17 | SunEdison Confidential 3.2 Design Validation Check List Item Junction Box Inverter Design Validation check list 1. JB enclosure type as per requirement 2. JB IP rating 3. Vent for air circulation 4. Number of fuses & rating (DC voltage & current rating of fuse) 5. SPD type & rating 6. Cable entry through gland or MC4 connector 7. Is string monitoring required? 8. JB fixing hardware & fixing bracket 9. Earthing connection 1. Operating voltage range 2. Check module series & parallel configuration 3. Check number of Input to each MPPT 4. Mounting bracket 5. Fixing Hardware 6. Check MC4 connectors for I/p cable termination 7. Lugs for connecting output cable (Boot terminals) 8. Check RS 485 / Ethernet cable for monitoring P. 18 | SunEdison Confidential 3.2 Design Validation Check List Item Design Validation check list 1. Check earthing the as per IS 3043 2. Refer Earthing layout 3. Earthing type ( Chemical / Pipe Electrode / plate earthing ) Earthing & Lightning 4. Grounding conduction size 5. Laying of GI trip 6. Type of LA (Standard Air termination / ES type 7. Mounting arrangement of LA 8. Grounding conductor size 9. Number of LA & earth pit as per layout 1. Check type of enclosure VCB / HT Panel 2. VCB make & rating 3. KWH meter type & accuracy 1. Check rating & type Transformer 2. Check LV & HV winding ratings 3. Check the vector group 4. Check mounting type 5. Check LV & HV termination P. 19 | SunEdison Confidential 3.2 Design Validation Check List Item Power Cable & Instrumentation cable Design Validation check list 1. Check cable as per IS / IEC 2. PVC / XLPE 3. Check DC cable size 4. Check AC cable size 5. Check the Electrical SLD for cable size 6. Check DC & AC voltage losses as per layout (Based on length) 7. Check Communication cable type 8. Lugs for Power cable 9. Lugs / connector for communication cable 10. communication cable gap shall be min 300mm from power cable & should not overlap on power cable Distribution Panels 1. Enclosure type, thickness & size 2. Cable entry (Top / Bottom) 3. I/p & O/p cable size, entry and gland size 4. Gap between gland plate & termination TBs 5. Gland size as per cable OD 6. MCB / MCCB make 7. Type of KWH meter – Analog / Multifunction P. 20 | SunEdison Confidential 3.2 Design Validation Check List Item Design Validation check list 1. Prepare SCADA Spec if customized type required SCADA Solar Radiation Sensor ,Temp Sensor, Wind Sensor, Web 2. Solar data logger Standard / GPRS based on Inverter Compatibility Portal 3. Select Radiation temperature, wind sensor, temperature sensor as per compatibility 1. Workout the BOM for installation kit, 2. MC connector as per cable schedule 3. Lugs as per SLD 4. Cable ties as per SLD 5. Mounting Hardware Packing & installation kit 6. Warranty label, TPS Label, 7. GI strip quantity, 8. Earthing wire & lugs 9. Bird spikes type, adhesive quantity, fixing hardware 10. Zip lock cover for packing items 11. Packing Carton box for packing Installation kit P. 21 | SunEdison Confidential 3.3 Design formats(Input, Review, Validation and Approved) P. 22 | SunEdison Confidential 3.3 Design formats(Input, Review, Validation and Approved) P. 23 | SunEdison Confidential 3.3 Design formats(Input, Review, Validation and Approved) P. 24 | SunEdison Confidential 3.3 Design formats(Input, Review, Validation and Approved) P. 25 | SunEdison Confidential 3.4 User Manual(Installation, Commissioning and O&M) P. 26 | SunEdison Confidential THANK YOU!! P. 27 | SunEdison Confidential
