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Hitachi

Photovoltaic Power Generation System

Equipment supplied by Hitachi

Equipment supplied by Hitachi
No. Name Quantity
1.3MW 2.6MW
1 Lead-in panel*1 1 1
2 Distribution panel*1 1 1
3 Site transformer panel*1 1 1
4 Bus tie*1 1 2
5 Step-up transformer (oil-immersed) 2 4
6 PCS outdoor package*1 1 2
7 Junction box*1 20 40
8 PV module (locally made or imported) 5,586 11,172
9 Weather converter panel*1 1 1
10 Light level meter (First class pyranometer) 1 1
11 Thermometer (Pt100Ω thermometer) 1 1
12 Monitoring package*1 1 1
*1
Freestanding outdoor units made from sheet steel
*2
Wall-mounted outdoor units made from sheet steel

Customer Responsibilities

Preparation: Finalize specifications

Task list for specifying system
No. Item Remarks
1 Survey location  
2 Acquire site  
3 Prepare overall plans (drawings) *1
4 Prepare expected power output calculations *1
5 Prepare structural strength calculations for mounts  
6 Engineering schedule  
7 Submit application for grid connection meeting to electric utility *2

Design: Electrical design

Task list for electrical design
No. Item Remarks
8 Prepare wiring connection drawings *1
9 Protection design *3
10 Prepare equipment outline drawings, and sequence/connection drawings *3
11 Prepare drawings for cabling between equipment (panels)  
12 Prepare equipment installation manual *4
13 Prepare layout drawings for step-up substation *1
14 Prepare layout drawings for PV module mounts  
15 Prepare foundations drawings for PV module mounts  

Equipment manufacturing and installation: Project management

Task list for project management
No. Item Remarks
16 Select site representative (technical supervisor), etc.  
17 Project management of on-site work  
18 Safety management  
19 Delivery plan for equipment and materials  
20 Install temporary site office  

Equipment manufacturing and installation: PV system

Task list for PV system
No. Item Remarks
21 Manufacture PV module mounts  
22 Prepare cabling between PV modules and PCS  
23 Prepare cabling between PCS (step-up substation) and grid interconnection point  
24 Prepare PAS or VGS  
25 Prepare protection equipment  
26 Prepare VCT and power meter  
27 Prepare remote monitoring equipment  
28 NTT line contract  

Equipment manufacturing and installation: Site preparation, foundations, and installation of mounts

Task list for site preparation, foundations, and installation of mounts
No. Item Remarks
29 Site preparation  
30 Install foundations  
31 Wastewater design and installation  
32 PV mount installation  
33 Fencing  
34 Work up to grid connection point (power utility’s responsibility)  

Equipment manufacturing and installation: Manage equipment delivery

Task list for managing equipment delivery
No. Item Remarks
35 Deliver equipment to site (FOB delivery to site) *4
36 Unloading and transfer of supplied equipment and materials  
37 Management of supplied equipment and materials  
38 Removal and disposal of supplied equipment packaging  

Installation, commissioning and inspection: Installation and cabling

Task list for installation and cabling
No. Item Remarks
39 Install PV modules on mounts  
40 Equipment installation  
41 Cabling between PV modules and PCS  
42 Cabling between PCS (step-up substation) and grid interconnection point  
43 Earthing  

Installation, commissioning and inspection: Installation and cabling

Task list for commissioning and inspection
No. Item Remarks
44 Prepare inspection record form for each device *4
45 Prepare on-site testing requirements document  
46 Prepare materials for testing  
47 Measure open-circuit voltage of PV modules  
48 Perform on-site unit testing of each device *2*4
49 Measure earth resistance, insulation resistance, and insulation strength  
50 Overall inspection  
51 Pre-operational inspection  

Installation, commissioning and inspection: Manuals

Task list for operation instructions
No. Item Remarks
52 Prepare user manuals for equipment *4
53 Hold equipment training  

Other: Applications

Task list for regulatory applications
No. Item Remarks
54 Apply for grid connection (electric utilities)
Assist with preparation of grid connection application form and associated documentation
(such as data for review prior to connection)
*2
55 Grid connection meeting (electric utilities)
Assist with preparation of grid connection manuals and associated documentation
*2
56 Submit installation work plans (Regional Bureaus of Economy, Trade and Industry)
Assist with preparation of installation work plans
*2
57 Safety inspection prior to operation (Regional Bureaus of Economy, Trade and Industry)
Assist with voluntary inspection prior to operation
*2

Other: Salt damage resistant version

Task list for salt damage resistant version
No. Item Remarks
58 Salt damage resistant version  
*1
Hitachi supplies standard documents
*2
Optional
*3
Hitachi supplies manufacturing specifications for the equipment it supplies.
*4
Provided for equipment supplied by Hitachi.

Notes

  • Read the user manuals before use and only use as instructed.
  • This product requires electrical installation. Ensure that this is performed by a qualified professional.
  • This equipment is intended for use in Japan. It may not be used outside Japan.
  • About indirect damage
    1. Use the equipment correctly and under the conditions specified in the user manuals and instructions displayed on the equipment itself. Hitachi accepts no responsibility for equipment faults or misoperation that result from disassembly or other modifications by the customer.
    2. Hitachi accepts no responsibility for indirect damage, including loss of power generation or any impact on other equipment, that results from shutdown, misoperation, or other faults on the equipment.