c3: scope of work - national treasury etender - part c3.6... · solar pv array structure ......

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Contract Part C3.6 Part C3 Scope of Work Returnable Technical Schedules Reference No. BFN 4/2017

AIRPORTS COMPANY SOUTH AFRICA BRAM FISCHER INTERNATIONAL AIRPORT CONTRACT NO: BFN 4/2017 CONSTRUCTION OF A PHOTOVOLTAIC PLANT

C3: Scope of Work

C3.6: Returnable Technical Schedules

Note that incomplete completion of these schedules may make the technical evaluation of the tender impossible and may result in disqualification of the tender

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Contents

Page

1. Track record ...................................................................................................... 4

2. Reference projects ........................................................................................... 5

3. Solar PV array structure .................................................................................. 6

4. Array layout drawing ........................................................................................ 7

5. Yield reports ...................................................................................................... 8

6. Single line diagram ........................................................................................... 9

7. PV Module data ............................................................................................... 10

8. Inverter data .................................................................................................... 12

9. SCADA ............................................................................................................. 15

10. Cables .............................................................................................................. 16

11. DC Connectors ............................................................................................... 17

12. LV Circuit Breakers ........................................................................................ 18

13. Minisub ............................................................................................................ 19

14. Total annual energy yield at Inverter ............................................................ 20

15. Total annual energy yield a Transformer...................................................... 21

16. Total annual energy yield a POC ................................................................... 22

17. Performance ratio guarantee ......................................................................... 23

18. Minimum warranties ....................................................................................... 23

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Definitions

The following definitions apply to the schedule columns of this specification: SCHEDULE A: Particulars of minimum requirements of the Employer, where indicated. SCHEDULE B: Guarantees and technical particulars of similar or equal equipment offered by Tenderer. Where insufficient space is provided by Schedule B, particulars must be furnished on separate sheets clearly marked with the number of the item referred to in Schedule A. The tender must clearly state all deviations (if any) in the Deviation Schedule and in Schedule B (if applicable). No tender for any apparatus will be accepted unless the schedules below are fully completed.

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1. Track record

(Must be of similar size & scope)

Year Installed PV capacity (kWp/MWp)

Project Value: Description & reference: Project Duration (months):

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2. Reference Projects

(2 required per category, as set out hereunder)

Reference project 1 Equal to or greater than 500kWp but less than or equal to 1MWp

Reference Company Name:

Address:

Telephone:

Email:

Project Director:

Panel and inverter technology:

Project Value:

Project Duration:

Project Location:

Project Manager:

Reference project 2 Equal to or greater than 1MWp

Reference Company Name:

Address:

Telephone:

Email:

Project Director:

Panel and inverter technology:

Project Value:

Project Duration:

Project Location:

Project Manager:

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3. Solar PV array structure

PARAMETER SCHEDULE B

Structural Shape (tubular /Angular steel/ Al)

Corrosion protection and UV protection

Wind Stability or maximum wind speed (km/h)

Static and dynamic assumptions

Weight per m²

Installation method and anchoring interface

Modular or standalone system

Durability and Lifespan in years

Inclination to the horizontal

Other

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4. Array layout drawing

(Layout drawing to be submitted by Tenderer)

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5. Yield reports

(Yield reports to be submitted by Tenderer)

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6. Single line diagram (high level)

(SLD to be submitted by Tenderer)

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7. PV Module data (1of2)

PARAMETER SCHEDULE A SCHEDULE B

Manufacturer and Model:

Manufacturer SolarWorld

Model Sunmodule Protect 250

Country of manufacture Freiburg Germany

Class (IEC 61730 or equivalent) IEC 61730 and IEC 61215

Electrical Characteristics:

Peak Power (PMPP) ≥ 250 Wp

Open Circuit Voltage (VOC) 37.6

Short Circuit Current (ISC) 8.81

Maximum Power Voltage (VMPP) 30.5

Maximum Power Current (IMPP) 8.27

Maximum System Voltage 1000

Working Temperature range -40 °C to +85 °C

Mechanical Characteristics:

Dimension (LxWxD) 1675x1001x31mm

Weight 21.2kg

Connector type and manufacture MC4 - German

Junction Box type and manufacture SolarWorld IP65

Cell (p-Csi , mono Csi, Thin film type

and size Poly Crystaline

No of Cells and connections per

panel 60

Temperature/Coefficients:

Temperature Coefficient VOC -0.31 %/K

Temperature Coefficient ISC 0.051 %/K

Temperature Coefficient PMPP -0.41 %/K

Quality Assurance and Standard:

IEC/ISO/SABS Certification SGS/TUV/CE/IEC/SAC/VDE/GS

Product Warranty/Guarantee 10 Years

Performance warranty/guarantee

(include power degradation graph as

a function of time for 25 years’ year

period. Illustrate start % and annual

rate % and end %

30-year linear performance guarantee: a maximum degradation of just 0.35 % p. a. provides guaranteed module performance of 90 % after 21 years, and 86.85 % after 30 years.

Reinsurance and underwriter Incorporated in SolarWorld financial model

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PV Module data (2of2)

STC:

STC and NOCT 25 °C and 46 °C

STC used 1000W/m², 25°C, AM 1.5

Peak power (W) (STC) 250Wp -0% +5%

Rated voltage (V) (MPP STC) 30.5

Rated current (A) (MPP STC) 8.27

Open circuit voltage (V) (STC) 37.6

Short circuit current (A) (STC) 8.27

Maximum system voltage 1000

Temperature Coefficient (max power)

(%/°C) -0.41

Cables (type & details)

4mm² Compact double insulated, electron-beam cross-linked, halogen free photovoltaic wire with sunlight resistant integrated jacket. Single conductor, flame retardant insulation with reduced diameter. (TÜV Norm 2 PfG 1169 08.2007 PV1-F)

Connectors MC4 - German

Ingress Protection Rating

IP69k - see included Amonia and sand resistance/ salt mist corrotion tests and impact testing. In the hail impact test, we replicate a natural hailstorm by dropping a 500-gram, 25-millimeter diameter steel ball onto the solar module from a height of four meters. This is repeated up to 20 times in the same place and on at least eleven different points of impact. The IEC only specifies a standard weight of 7.53 grams per steel ball.

Frame construction and colour Aluminium Silver/Black

Warranty (product) 10 years

Warranty (90% power) 21 years

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8. Inverter data (1of3)


Manufacturer and Model:

Manufacturer SMA

Model STP17000-TL10

Country of manufacture Germany

Electrical Characteristics:

Recommended power from PV array

(kWp) 17

Output power from inverter and

graph of efficiency 98.20%

AC nominal voltage 3 / N / PE, 230 V / 400 V range 160 V – 280 V

Nominal frequency 50, 60 Hz; –6 Hz, +5 Hz

Maximum line current 24.6 A

AC current distortion (% THD) L1- 0.99 ; L2 - 1.01 ; L3 - 0.94

Open circuit maximum voltage 1000

Inverter efficiency, derating % /Deg C

over 50 Deg C ±1.5%

Single phase or three phase -

Maximum power (DC) 17410W

Range of PV input voltage MPPT

(DC) 400 V – 800 V

Nominal voltage (DC) 600V

Start-up voltage (DC) 188 V

Maximum module voltage (DC) 1000 V

Module current range (DC) String A: 33 A, String B: 11 String A / 33 A

Nominal current (DC) N/A

Minimum nominal power rating (AC) 17000

Nominal voltage (AC) 3 / N / PE, 230 V / 400 V range 160 V – 280 V

Nominal current (AC) 24.6A

Current range (AC) 0 - 24.6A

Frequency range 50, 60 Hz; –6 Hz, +5 Hz

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Inverter data (2of3)

Power factor 0.8 leading to 0.8 lagging (Test value at rated power >0.99)

Quantity and type of DC connectors Sunclix : 5 x strings A and 1 x string B

Operating temperature –25 °C to +60 °C

Minimum efficiency 20% to nominal power (%)

See graph on Data Sheet

Total Harmonic Distortion (%) L1- 0.99 ; L2 - 1.01 ; L3 - 0.94

Standby power consumption (W) 1W

Night-time power consumption (W) 1W

Mechanical Characteristics:

Dimension (W x H x D) 665 / 690 / 265

Weight 65

IP rating Electronics protection rating IP65 / connection area IP54

Operating temperature –25 °C to +60 °C

Cooling system

OptiCool - The innovative cooling system OptiCool® actively cools the inverter, meaning that the rpm-regulated fan motor is activated when the sensors installed in various places on the device measure temperature increases. OptiCool® is made up of two separate ventilation circuits. As fresh air from outside is drawn in to cool heat-producing components, circulating warm air is cooled down in an internal ventilation circuit on the inside of the inverter. The heat exchanger used in this process is operated by fresh-air supply.

Ventilation OptiCool with Fan

Ingress Protection Rating Electronics protection rating IP65 / connection area IP54

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Inverter data (3of3)

Safety

In built protection functions

DC reverse-polarity protection reverse current protection ESS switch-disconnector AC short circuit protection Ground fault monitoring Galvanically isolated all-pole sensitive fault current monitoring unit DC overvoltage protector type II String failure detection Protection class I overvoltage category III

Self – monitoring system and alarms > 90 Events See manual 11.1 Event Messages 11.2 Error messages

Quality Assurance:

IEC/ISO/SABS Certification

Yes Certificates and permits (more available on request) CE, VDE 0126-1-1, Enel-GUIDA*, G83/1-1, PPC, AS4777, EN 50438**, C10/C11, IEC 61727*

Grid Guard country Codes and

conforms to NRS -097

VDE-AR-N4105 VDE 0126-1-1 AS4777 C10/11 PPDS GBT19939-2005 UTE C15-712-1 PPC NRS 97-2-1 EN50438 RD661/2007 IEC 61727 G59/2 CEI 0-21 BDEW 2008 RD1699:2011 SI4777

Product warranty/guarantee Warranty 5 years

Performance warranty/guarantee 5 years

Extension of warranty optional 10 / 15 / 20 / 25 years

Local technical support and spares

centre Yes

Special installation transport

requirements Basic

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9. Plant SCADA


Manufacturer and Model

Array Voltage – VDC (V)

Grid voltage – VAC (V)

Array Current – IDC (A)

Grid (injected) current – IAC (A)

Array power – PDC (W)

kWh, kWAC peak per day

Module temperature – T module (°C) ( where

mounted )

Ambient temperature – Tamb (°C)

Solar Radiation – (W/m²)

Alarms and alarm set pint management

Wind speed

precipitation

Data logging capability with a user friendly

GUI and automated report generation

capability

Histogram data format and size

Communications interface (Ethernet, Internet,

GSM/GPRS)

Plant / machine interface ( fiber / copper )

and protocol ( Bus, RS 485)

SMS alerts

Local storage and redundant storage

Licence fees and updates

Local support

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10. Cables

Low voltage cables


Manufacturer ABERDARE and/or Helukabel

Type 600/1000 V PVC Cu armoured

Single or multicore Multicore Insulation material PVC Sheath material PVC Sheath colour/s - Standards achieved SANS 1507

Medium voltage cables


Manufacturer ABERDARE

Type 11 kV XLPE armoured Vultex Type A

Single or multicore Multicore

Insulation material Oil impregnated paper

Sheath material Lead, PVC served

Sheath colour/s -

Standards achieved SANS 97

DC Cables


Manufacturer ABERDARE

Type Solardac

Rated voltage (Volts) 1500 V DC, 600/1000 V AC

Single or multicore Single

Temp. rating -15ºC to 90ºC

Insulation material Polyolefin

Sheath material Polyolefin

Sheath colour/s Black

Inner sheath colour(s) -

Standards achieved SANS 1507

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11. DC Cable connectors


Manufacturer Multi Connect

Type MC4 Multilam Technology (multiconnect)

Rated voltage (Volts) 1000V DC

kA rating More than 2kA

Thermal rating Up to 350 °C

Mechanical contact durability Up to 1 million mating cycles

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12. LV Circuit breakers

AC


Manufacturer

Model

Fault rating

DC


Manufacturer

Model

Fault rating

FUSES


Manufacturer

Model

Fault rating

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13. Minisub

DESCRIPTION UNIT SCHEDULE A SCHEDULE B

Manufacturer Powertech-

Metal enclosed 3CR12 – 2.0mm

Paint finishing Coastal spec

Colour Avocado Green

Doors Protruding with concealed

hinges

Lock mechanism 3 point with Allen key bolt

RMU ABB Safe Ring CCV

MV Surge arrestors RSTI-66SA1210

MV Elbow adapter RSTI-L-5651

RMU MV boot RCAB 4120

Rated output kVA 800

Primary rated voltage kV 11

Secondary rated voltage V 400 (no load)

MV Taps ±2.5% and ±5%

Vector group Dyn 11

Protection:

-Relay

RJ603 with remote trip input option

-Thermometer Set at 105°C

-Shunt trip coil and relay included

-Earth fault indicator With control unit & split CT’s

Losses:

-No load W -

-Full load W -

Insulation level (BIL) kV -

Core or shell type core

High voltage fuse rating A N/A

Main LV switch disconnector:

-Type -

-Circuit breaking capacity kA -

-Current trip rating A -

-Voltage V 440

Bulk consumption meter:

Type

Elster A1700 with KoCos modem

Test block 13 way

Current transformer 1200/5A 20 VA Class 0.5A

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14. Total guaranteed annual energy yield at inverter

P50 P90 Annual degradation

Year kWh kWh %

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Cumulative Total

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15. Total guaranteed annual energy yield at transformer


Year kWh kWh %

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Cumulative Total

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16. Total guaranteed annual energy yield at POC


Year kWh kWh %

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Cumulative Total

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17. Performance ratio guarantee

The performance ratio (PR) is defined according to the standard IEC 61724:

r

f

Y

YPR

Minimum acceptable values:

DESCRIPTION SCHEDULE A SCHEDULE B

Plant availability losses allowed 0.5%

Practical Completion 79%

Guaranteed long term 75%

18. Minimum warranties

Minimum acceptable values:

DESCRIPTION SCHEDULE A SCHEDULE B

Civil works 1year

AC cables 1 year

MV switchgear 2 years

Mini-substation 2 year

Inverters 5 years

PV Module substructure (steel) 5 years

PV Module substructure (Al) 10 years

DC Cables 1 year

PV Modules (product) 10 years

PV Modules (power output) 25 years

Control and monitoring system 2 years

Complete plant beyond the POC years

Note: that warranties from the main suppliers shall be transferred to the Employer on 100% payment of the

relevant item.

Extended warranties offered (please provide details and implication on cost for Employer):

DESCRIPTION SCHEDULE B Cost implication

Inverters

PV Modules (product)

c3: scope of work - national treasury etender - part c3.6... · solar pv array structure ......

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