ABB - DMPC PG Solar, Nov 2016 ABB: a leading company in solar The most comprehensive value proposition

ABB in solar: most comprehensive value proposition Remote control and monitoring Global sales and service Distribution automation Grid connection & integration EV charging LV Home products & building automation Battery energy storage System control & visualization Climate control (HVAC, cooling) Energy management EV charging infrastructure (commercial, office, fast DC) Charging network services (comms network, GUI) LV products Power converters Energy storage modules (batteries, TXR, switchgear) STATCOM with energy storage Remote control and monitoring Solar pump Hybrid microgrids Smart home PV inverter (both Offgrid converters String inverters String Smart inverters building Central PV power inverters plant on/off grid modes) PV and wind LV components LV components Inverter stations LV components inverters Charge controller Combiner boxes LV components Pump dry run Grid stabilization Energy storage Grid connection Combiner boxes protection Energy storage EV charging (TXR, switchgear) Grid connection Remote monitoring Turnkey solutions Home automation Building (TXR, switchgear) Consulting/design automation BoS, EBoP, Turnkey Microgrid and offgrid solutions Grid-connected solutions May 20, 2016 Slide 7 BoS: Balance of system EBoP: Electrical balance of plant

Commitment to solar boosted with Power-One A strategic acquisition for real and effective synergies The largest and more widespread presence Over 100 countries covered The widest inverter portfolio From 250 W up to 2 MW May 20, 2016 Slide 3

The portfolio The widest offer in PV kw May 20, 2016 Slide 4

PG Solar Inverters - Residential segment portfolio UNO Isolated 2 kw, 2.5 kw PVI-TL TL (Non-Isolated) 3 kw, 3.6 kw, 4.2 kw 5 kw, 6 kw UNO-TL (Non-Isolated) 7.6 kw, 8.6 kw TRIO-TL TL (Non-Isolated) 5.8 kw, 7.5 kw, 8.5 kw REACT TL (Non-Isolated) 4,6, 3,6 kw Inv. 2 kwh expandable x3 Batteries May 20, 2016 Slide 5

PG Solar Inverters - Commercial segment portfolio TRIO 1000 V, String, TL 20 kw, 27.6 kw PRO-33 1000 V, String, TL 33 kw PVI-10.0/12.5 1000 V, String, TL 10 kw, 12.5 kw PVS800 1000 V, Central 100 kw - 1000 kw May 20, 2016 Slide 6

PG Solar Inverters - Utility segment portfolio ULTRA 1000 V, Central, Outdoor 750 kw, 1100 kw, 1500 kw PVI-500.0-TL-CN 1000 V, Central, Indoor 500 kw for China PVS800 1000 V, Central 100 kw 1000 kw Substations Integrated Solutions 750 kw 3 MW built to specific inverter May 20, 2016 Slide 7

PG Solar Monitoring and communication products Broad offer for all kind of applications/sizes Different kind of com. protocols (ModBus RTU, Aurora Protocol, Zig-Bee, Wi-Fi, etc..) Continue diagnostic service Remote software upgrades available Large portfolio of accessories Web-based with data availability 24/7 May 20, 2016 Slide 8

ABB string inverter TRIO-50.0-TL Product presentation Slide 0

TRIO-50.0-TL-OUTD Scope Application Commercial and industrial PV installations. 1000Vdc The unit is developed to reduce the installation cost by not requiring any major commissioning activity. Its light weight and construction make the unit manageable by a reduced team of 2 people. April 26, 2016 Slide 1

TRIO-50.0-TL-OUTD Highlights TL topology Separated electronic compartment and string combiner compartment (similar to the TRIO-20 and 27.6-OUTD) String combiner offered in multiple versions (factory pre-configured) to include String fuses DC and AC disconnect switch Dc and AC Surge arrestors IP65 outdoor construction for the electronic compartment Forced air cooling with field replaceable fan tray World wide availability April 26, 2016 Slide 2

TRIO-50.0-TL-OUTD Input/output parameters Input parameters V DC max = 1000Vdc V MPPT = 480 800 Vdc V DC range = 250 950 Vdc Output parameters VAC nom = 400Vac 3-ph and 480Vac 3-ph Frequency = 50 and 60Hz Continuous output power 50KVA Circular capability Independent MPP channel: 1 April 26, 2016 Slide 3 Grid support functions: fault ride through, frequency droop, active & reactive power control.

TRIO-50.0-TL-OUTD Input/output parameters Communication 2 RS485 (configurable as Modbus RTU) 2 expansion slot Optional WiFi data logger (remote upgrade) User Interface No display, only functional leds; The user interface for control purpose can be done via the communication devices available with the inverter (RS485 port, Ethernet card ) Versions Dimension [mm] Weight 3 main modules: DC Wiring Box, Power Module, AC Wiring box Power Module DC Wiring Box EU US EU: basic,- S, - SX, -SY US: S1, S1A, S1B 702H x 725W X 260D 702H X 390W X 260D 66 Kg 14 Kg (max) Vertical or horizontal mounting AC Wiring Box EU: basic,- S, - SX US: S1, S1A, S1B 702H X 390W X 260D 15 Kg (max) April 26, 2016 Slide 4

TRIO-50.0-TL-OUTD Available models WALL MOUNTING BRACKET;TRIO- 50.0 HORIZONTAL MOUNTING BRACKET;TRIO-50.0 DCWB-TRIO-50.0-TL-OUTD DCWB-S-TRIO-50.0-TL-OUTD DCWB-SX-TRIO-50.0-TL-OUTD/12 INPUTS DCWB-SY-TRIO-50.0-TL-OUTD DCWB-SX-TRIO-50.0-TL-OUTD/16 INPUTS ACWB-TRIO-50.0-TL-OUTD ACWB-S-TRIO-50.0-TL-OUTD ACWB-SX-TRIO-50.0-TL-OUTD TRIO-50.0-TL-OUTD-POWER MODULE April 26, 2016 Slide 6

Commercial and industrial PV installation String inverter portfolio 2 PV arrays Short & long strings 1 PV arrays Long strings 1 PV arrays Short & long strings 0,02 0,2 1 2 5 10 15 20 20 [MW] April 26, 2016 Slide 12

Basic algorithm - overview Strings REACT METER Grid Load manager relays Home loads

% Boosting self-consumption and self-sufficiency Example Italy* 70 +25% 60 50 40 30 +15% Autoconsumo Self-consumption Autosufficienza Self-sufficiency 20 10 0 Pure PV React React + load management *Country: Italiy, power: 5kWp, Year consumption; 4100 kwh, irradiance: 1300 kw/kw p

Power and productivity fo r a better world rm