The industry’s first complete power harvesting and management solution for utility-class solar power plants.Solstice®, Satcon’s distributed energy management system, is an optimized end-to-end, panel-to-grid, solar PV electrical power generation system that focuses on improving total system performance, reducing overall balance of system costs and increasing system controllability, safety and uptime. Solstice is engineered from the ground up to provide granular control over every component in the array—from a single string, to the inverter, to power delivered to the grid.

With its sophisticated central command and control center, Solstice reacts to changing conditions with remarkable speed, providing the industry’s first complete power harvesting and management solution for utility-class power plants.

Solstice breaks a large array into small strings of well matched modules and harvests the energy on the DC end in order to optimize the performance of the entire array. By introducing fine-grained energy production, including string-level MPPT, Solstice delivers higher energy yield, ensuring that the negative effects of shading, soiling and aging mismatch are localized and minimized while also being identified and reported.

Advanced Power Plant Control CapabilitiesOn the DC side, string-level instrumentation can be used to manage the array and trend its performance, providing visibility to poorly behaving elements of the array, including ground currents. This enables centralized management and maintenance of the array and improves both day-to-day performance and safety.

Complete Management Solution

• Boosts total system power production by 5-12%

• Lowers overall balance of system costs by 20-25%

• Reduces installation time and expense

• Enables string-level power optimization and centralized total system management

• Delivers advanced grid interconnection and utility control capabilities

• Increases system uptime, safety and reliability

www.Satcon.com

Please visit Satcon’s Resource Library for additional tools and product information, including:

• Satcon’s product configurator

• Satcon’s string sizing calculator

• Training and support resources:

– On-demand video training

– Articles, white papers and case studies

PV Inverters

5-12% Improvement in TotalEnergy Harvest

20-25% Reduction in Balanceof System Expense

Solstice 500 kW ULSDMS-500-UL

2

Solstice 500 kW UL

How Solstice WorksIn any system, individual string IV curves are seldom identical due to shading, soiling or other causes of module mismatch. In a centralized system, this results in each string operating below its maximum power point, leading to suboptimal energy production from the whole system.

Full Sun

Shade

DustString A

String B

String C

Combiner Box

Central Inverter

String A

I

V

String B

I

V

String C Power String C

Power String B

Power String A

I

V

String A

I

V

String B

I

V

String C

I

V

Power String C

Power Gain with Solstice

Power String B

Power String A

Full Sun

Shade

Dust

Solstice SSB

String A

String B

String C Solstice Inverter

MPPT

MPPT

MPPT

Intelligent and Flexible

Satcon Solstice enables centralized, intelligent management of the entire PV system along with the flexibility of localized control over every component in the array,from the panel, to a single string, to the inverter, to the grid—thus serving as a total system solution.

Total System Monitoring, Diagnostics and Control

• String level instrumentation provides greater visibility to poorly behaving elements in the system

• Bidirectional communication allows you to send commands, and receive status and operating characteristics from the inverter

• Ability to sense, identify and mitigate ground faults as they occur—in milliseconds

AC Side System Value

• Control of real and reactive power

• Ability to stop, start and restart a solar PV power plant remotely

• Controllable ride-thru

• Dynamic VAR generation

• Simplifi ed Utility SCADA system integration via the Solstice PV site controller

Solstice 500 kW UL Specifications

Solstice SubcombinerThe Solstice Subcombiner (SSB) performs string level Maximum Power Point Tracking (MPPT) and the DC to DC conversion.

Up to 2% Energy Gain

1-5% Energy Gain Up to 5% Energy Gain

With Solstice, power output from each string is independently optimized, allowing each string to operate at it’s full potential all day long. As a result, energy production from the entire system is increased by 5-12%.

Approximation based on idealized data points.

SUNRISE

PO

WER

OU

TPU

T

SUNSET

+5-12%

Centralized

Improvements in power production and yield.

Solstice

String Level Maximum Power Point Tracking (MPPT)

• MPPT ensures that the negative effects of module shading, soiling and aging mismatch are minimized and contained within the string

• 1-5% energy gain

String Level DC to DC conversion

• Boosts string voltages to a higher, fixed level, reducing line losses and allowing the inverter to operate more efficiently

• Higher voltages result in lower current, permitting the use of smaller gauge cable, and a reduction in wiring costs

• DC/DC conversion is accomplished with an efficiency of 99%

• Up to 2% energy gain

Reduced Balance of System Expense by 20-25% while Gaining Greater Design Flexibility

• Utilize smaller gauge, lower cost cable

• Decreased conduit size requirements

• Lower installed costs due to factory integrated total system design

• Greater design fl exibility by ability to use different panel technologies, power ratings, vintages, sizes, mounts and brands in the same array

• Up to 5% energy gain

4

Solstice 500 kW UL

Advanced, Rugged and Reliable

Engineered from the ground up to meet the demands of large-scale installations, Satcon Solstice features NEMA4 SSB enclosure, NEMA 3S inverter electronic section, advanced monitoring and control capabilities, and Edge™, Satcon’s next-generation MPPT solution.

Low Maintenance

• Total system intelligence and modular components make service efficient

• String level Maximum Power Point Tracking (MPPT)

• Highly optimized DC to AC conversion

• Total system monitoring, diagnostics and control

• Advanced grid interconnection and utility control capabilities

• Natural convection cooled SSB for simplicity and high reliability

Rugged Construction

• Hermetically sealed NEMA 4 Cabinet for Subcombiner and for power control electronics in inverter

Output Transformer

• Provides galvanic isolation

• Matches the output voltage of the PV inverter to the grid

Solstice 500 kW Specifications UL/CSA

Input Parameters

Input Voltage Range 550-600 VDC

Maximum Array Input Voltage 575 VDC

Maximum Operating Input Current1 905 ADC

PV Array Configuration Negative Ground

•

Positive Ground

•

DC Input Combiner Options

Compatible SSB’s 2.9 kW x 9 Strings2

Standard Number of SSB’s • 20

Maximum Number of SSB’s 24

Number of Inputs and Fuses 20 x 63A21 x 63A22 x 63A24 x 63A20 x 80A21 x 80A22 x 80A

Transformer

Integrated Internal Transformer No Yes

Efficiency

Maximum3 98.3% 97.5%

CEC 98% 97%

Output Parameters

Nominal Power 500 kW

Nominal Output Voltage 320 VAC 480 VAC

Output Voltage Range, [-12%/10%] 282-352 VAC 422-528 VAC

Maximum Output Current/Phase 903 A 602 A

Standby Consumptions (tare losses including control power and aux.)

Nominal Output Frequency, 3-Phase 60 Hz

Harmonic Distortion >3%

Power Factor, Full Load >99%

Dynamic Power Factor Control +/- 0.8

Power Curtailment 0-100%, 1% steps

Environment

Operating Temperature Range(Nominal Power)

-4˚ F to 122˚ F (-20˚ C to +50˚ C)4

Storage Temperature Range -22˚ F to 158˚ F (-30˚ C to +70˚ C)

Cooling Forced Air

Elevation (Maximum)5 13,123 ft. (4000 m)

Noise Level (Distance of 3 m) <65 dB(A)

Relative Humidity (Non-Condensing) 15 - 90%

5

Solstice 500 kW UL Specifications

Safety

• UBC Seismic Zone 4 compliant

• Built-in DC and AC disconnect switches

• Integrated DC two-pole disconnect switch isolates the inverter (with the exception of the GFDI circuit) from the photovoltaic power system to allow inspection and maintenance

• Protective covers over exposed power connections

Solstice 500 kW Specifications UL/CSA

Enclosure

Dimensions (H x W x D) 83 x 142 x 33 in.(210 x 361 x 84 cm)

83 x 194 x 33 in.(210 x 493 x 84 cm)

Weight6 4,200 lbs. (1905 kg) 8,200 lbs. (3719 kg)

Finish RAL 7035

Hood and Base Trim Finish RAL 5001

Protection Rating NEMA 3R/IP54

Warranty and Services

Five Year Warranty •

Extended Warranty (10, 15, or 20 years)

Preventative Maintenance Agreement

Uptime Guarantee

Communication Interface

Modbus RS485 •

Modbus TCP/IP •

Monitoring

PV View Plus

PV Zone

Third-Party Compatibility •

Regulations and Standards Conformity

UL1741, CSA 107.1-01, IEEE 1547, IEEE C62.41.2, IEEE C62.45, IEEE C37.90.1, IEEE C37.90.2

•

• Standard / Standard Option

Optional

* Preliminary data.1 Calculated at nominal power and minimum DC voltage.2 2.9 kW x 12 string positive ground available upon request.3 Without auxiliary power.4 +131° F (+55° C) with additional option package.5 Operation above 3,281 ft. (1000 m) results in a decrease in the maximum ambient temperature for full power operation. For each

additional 3,281 ft. (1000 m) in elevation, there is approximately a +4.5° F (+2.5° C) decrease in the maximum ambient temperature for full power operation.

6 Dependent on options selected.

NOTE: All specifications are subject to change.

Output Options

Solstice 500 kW

UL/CSA 208 VAC Output

240 VAC Output

480 VAC Output

6

Solstice Subcombiner (SSB)

String Level Maximum Power Point Tracking (MPPT)

• MPPT ensures that the negative effects of module shading, soiling and aging mismatch are minimized and contained within the string

• 1-5% energy gain

String Level DC to DC conversion

• Boosts string voltages to a higher, fixed level, reducing line losses and allowing the inverter to operate more efficiently

• Higher voltages result in lower current, permitting the use of smaller gauge cable, and a reduction in wiring costs

• DC/DC conversion is accomplished with an efficiency of 99%

• Up to 2% energy gain

Reduced Balance of System Expense by 20-25% while Gaining Greater Design Flexibility

• Utilize smaller gauge, lower cost cable

• Decreased conduit size requirements

• Lower installed costs due to factory integrated total system design

• Greater design fl exibility by ability to use different panel technologies, power ratings, vintages, sizes, mounts and brands in the same array

• Up to 5% energy gain

SSB Specifications UL/CSA

2.9 kW x 9 Strings2.9 kW x 12

Strings

Model SSB2509LNU SSB2509LPU SSB3412LPU**

Input Parameters

Input Voltage Range 50-600 VDC1 100-600 VDC1 100-600 VDC1

Maximum Array Input Voltage 600 VDC

Maximum Operating/Input 12 ADC

Maximum Power/Input 2.9 kW

PV Array Configuration Negative Positive Positive

Input Options

Maximum Number of Inputs 9 9 12

Fuse size 8A/10A/12A/15A/16A/20A (10 x 38 mm)

Surge Protection

Surge Protection Standard

Inverter Disconnect None None None

Output Parameters

Nominal Power 25 kW 25 kW 34 kW

Nominal Distribution Voltage 575 VDC

Distribution Voltage Range +/- 10 V

Maximum Distribution Current 46 ADC 46 ADC 62 ADC

CEC Efficiency 98% 98.5%* 98.5%*

External Connections

DC Output35 - 185 mm (No. 2 AWG - 350 KCMIL), Ground: 50 - 70 mm (No. 1 - 2/0 AWG)

String Connection 4 - 16 mm2 (No. 10 - No. 6 AWG)

String Ground Connection 2 - 4 mm2 (No. 14 - No. 12 AWG)

Temperature Sensor Leads 0.10 - 4 mm (No. 26 - No. 10 AWG)

Recommended Temperature Sensor Cable Belden P/N: 9341

Recommended Temperature Sensor Epcos P/N: B57703M0103G040

Recommended Signal Cable (EIA-485) USE-2 No. 18 AWG 2 pair stranded, shielded PVC direct burial cable (or equivalent) or

Belden 1048 for conduit wires3

Environment

Operating Temperature -4° F to +131° F (-20° C to +55° C)

Storage Temperature -40° F to +185° F (-40° C to +85° C)

Cooling Natural Convection

Relative Humidity 5 - 95%

Solstice Subcombiner (SSB) Specifications

SSB Specifications UL/CSA

Enclosure

Dimensions (H x W x D) 30 x 40 x 14 in. (76 x 101 x 35 cm)

Weight4 52 lbs.(114 kg)

55 lbs.(120 kg)*

55 lbs.(120 kg)*

Finish RAL 7035

Protection Rating NEMA 4

Warranty and Services

Five Year Warranty •

Extended Warranty (10, 15, or 20 years)

Preventative Maintenance Agreement

Uptime Guarantee5

Interfaces

Communication EIA-485, 9600 baud, half duplex(Power Line Carrier Optional)

Monitored Input String Current (0 - 12A)

Monitored Internal Temperature -4° F to +185° F +/- 9° F(-20° C to +85° C +/- 5%)

Monitored External/Ambient Temperature6 -4° F to +185° F +/- 9° F(-20° C to +85° C +/- 5%)

String Monitoring Integrated current sensing

String Communication Integrated, RS-485

Regulations and Standards Conformity

UL1741, CSA 107.1-01, IEEE 1547, IEEE C62.41.2, IEEE C62.45, IEEE C37.90.1, IEEE C37.90.2

•

• Standard / Standard Option

Optional

* Preliminary data.

** Available upon request.1 Input voltage must be above 180 VDC to start MPPT operation.2 Input voltage must be above 200V to start MPPT operation.3 Total length of network to be within 2,000 ft. (600 m).4 Weight dependent on grounding and disconnect type.5 Requires Preventative Maintenance Agreement.6 Requires separate sensor [THERMISTOR NTC 10K OHM], recommend EPCOS P/N B57703M0103G040.

NOTE: All specifications are subject to change.

Energy Equity Protection (EEP)

Satcon provides a wide range of optional value-added services toprotect your investment across theentire lifecycle of your project.

Design Services

Satcon’s Design Services organization can guide you through all phases of project development using our broad experience and engineering skills.

APEX Project Management

Satcon APEX™ Project Managementensure that your project comes in ontime and on budget.

• Project planning

• Logistics

• Project supervision

• Mitigating risk, maximizing ROI

Warranty and Services

• Help desk

• Training programs

• Support services

• Extended warranty

• Preventative maintenance plans

• 99% Uptime Guarantee

© 2011 Satcon Technology Corporation. All rights reserved. Satcon is a registered trademark of Satcon Technology Corporation. All other trademarks are the property of their respective owners. SOL500ULNAEWR092611MS

Satcon Corporate25 Drydock Avenue, 7th FloorBoston, MA 02210USAP: +1.617.910.5500F: +1.617.910.5501E: sales@satcon.com

Satcon West46441 Landing ParkwayFremont, CA 94538USAP: +1.510.897.4900F: +1.510.897.4901E: sales@satcon.com

Satcon Canada835 Harrington CourtBurlington, ON L7N 3P3CanadaP: +1.905.639.4692F: +1.905.639.0961E: sales@satcon.com

Satcon GermanyAn der Welle 460322 Frankfurt MainGermanyP: +49 (0)69 7593 - 8620F: +49 (0)69 7593 - 8200E: sales.eu@satcon.com

Satcon International s.r.o.Jankovcova 1037/49170 00 Praha 7Czech RepublicP: +420.255.729.610F: +420.255.729.611E: sales.eu@satcon.com

Satcon Greece1A Iraklitou St.Patima Halandriou – 152 38GreeceP: +30.210.6654424F: +30.210.6654425E: sales.gr@satcon.com

Satcon Shenzhen ChinaUnit C101-C102, Tower C,Unisplendour Info. Harbor,Langshan Road, Nanshan Dist.Shenzhen 518057, ChinaP: +86.755.6168.2588F: +86.755.6168.2599E: sales@satcon.com

Satcon Shanghai ChinaUnit 2902-3, Tower A,City Center of Shanghai,100 Zun Yi Road,Shanghai 200051, ChinaP: +86.21.6236.8236F: +86.21.6236.8240E: sales@satcon.com

www.Satcon.com