The Sunny Boy 240 Micro Inverter System · SMA Solar Technology The Sunny Boy 240 Micro Inverter System Jurgen Krehnke President and General Manager, SMA America May 17, 2012

SMA Solar Technology

The Sunny Boy 240 Micro Inverter System

Jurgen Krehnke President and General Manager, SMA America May 17, 2012

SMA Solar Technology

> 5,300 employees worldwide

> Present in 20 markets on four

continents

> 12+ GW total manufacturing

capacity

> North American production in

Denver and Toronto

> Product portfolio for any

application, any power class

> The world leader in solar inverter

technology

> More than 25 GW installed worldwide

> Estimated 35% global market share

2

SMA Solar Technology AG

SMA Solar Technology

A Unique Position in PV: All Markets, All Technologies

3

Off-grid

Thin-Film

module

Crystalline

module

From 1 kW

(Residential +

Commercial)

To > 1 MW

(Utility)

Grid-tied

Backup Concentrator

module

All applications All power ranges All module types

Micro inverter

< 1 kW

(Residential)

SMA Solar Technology

> Project requirements and business

models determine technical approach

> Site considerations

> O&M plan

> Installation capabilities

> Utility requirements

> Availability of product and components

> Stability of suppliers

> Financing

> Micro inverters have become a factor

4

Today’s Inverter Market: No Universal Solution Exists

SMA Solar Technology

Sunny Boy 240 Field of Applications

5

> Typically recommended for residential installation:

> Small systems

> Plants with complex shadowing situations

> Building integration (BIPV)

> Further possible applications:

> Mixing string inverter and micro inverter on same installation

> Subsequent system expansion

> Highly complex roof geometry

(dormer windows, etc.)

> Same product available worldwide MultiGate

Sunny Boy 240

Ethernet

DC

AC

SMA Solar Technology

Taking the idea to the next level …

6

> SMA studied the concept 20+ years ago

> But reliability never met company standards

> All concepts (to date!) show higher failures

> Concept was shelved as „not mature“

> Recent developments gave a new spin

> Market focused on features over reliability

> Technology allowed radical component reduction and integration

> Strict quality controls

> US and Europe Manufacturing

> Advanced Software support

> SMA embraced the micro-inverter concept and developed a product line around it

SMA Solar Technology

Sunny Boy 240 System Overview

7

> System consisting of:

> Micro inverters connected in parallel to one AC line

> Attached to a panel mounting system (or wall)

> 1 Sunny Multigate

> Electrical interface to main service panel

> Networking support for panel-level monitoring and

diagnostics

> Powerline communications to micro inverters

> Ethernet communications to Sunny Portal

> Country settings and over-voltage protection

> Supports DIN rail or wall mounting

SMA Solar Technology

Enclosure and Connectors

8

> Small aluminum die-cast housing

> Superior thermal design concept

> Dimensions: 7.4” x 8.6” x 1.7” (W x H x D)

> Weight: approximately 2.9 lbs.

> NEMA 3R environmental protection

> Flexible mounting: integrated PV rack and wall

mount adapter

> AC/DC Panel

> AC connector: turnkey cables incl. plugs

> DC connector: MC4, MC3, Tyco, SUNCLIX

> Design enhances lifetime optimization and installation ease

SMA Solar Technology

Flexible Installation Options

9

Rendering of enclosure and mounting options

Wall Mount

Continuous Grounding with Lug

PV Rack

Diecast Enclosure

DC Connector

AC Connectors

SMA Solar Technology

Sunny MultiGate – Intelligent and Reliable

10

> Intelligent features:

> Combined communication and system protection

> Portal gateway

> Integrated distortion filter

> Over-voltage protection & safety enhancements

> Highlights and benefits:

> Panel level monitoring and health status analysis

> Plug and play Sunny Boy 240 detection and

operation

> Broadcast system configuration, e.g. country

parameter setting

> Energy efficient electronics design

SMA Solar Technology

Convenient Cable and Wiring Options

11

System Components:

> AC plug-in system consists of:

> Pre-assembled plugs and connection cables between the

micro inverters

> Field-assembled plug and cable between Com. Box and

the first micro inverter

> AC protection cap with sealing option

> DC plug-in adapter options, such as:

> MC4, MC3, Tyco, SUNCLIX

Highlights and Benefits:

> Enhanced safety due to low DC voltage

> Maximum flexibility and ease-of-use

> Connectors tailored to customers‘ needs

SMA Solar Technology

Sunny Portal Provides Complete Monitoring

12

Highlights:

> Largest PV monitoring portal — monitoring more than 4.3

GW of installed power (50,000+ installations)

> Remote access to your plant over the Internet and with

iPhone and Android Apps

Features:

> Site Layout Tool

> Live data on module level

> Dashboard — quick plant summary

Benefits:

> Seamless integration of micro inverter plants in existing

Sunny Portal environment

> 24/7 monitoring and analysis

> Installation support for installers with the guided

Sunny Portal Start-Up Assistant

SMA Solar Technology

Panel Level Monitoring on Sunny Portal

13

Site Overview:

> Automatic physical presentation of your

plant (module size, azimuth, site layout)

> Animated display of energy and power

> Choose between different time periods

> Fullscreen display

> Live data view

> Easy error detection through module shading

SMA Solar Technology

The Sunny Boy Advantage – The PROFESSIONAL’s Solution!

14

Intelligent & Safe

> Advanced over-voltage protection

> Health status analysis

> 24/7 panel level monitoring and analysis

Outstandingly Reliable

> Low component, high MTBF design

> Superior thermal concept

> Robust communication solution

Compact

> Small and robust form factor

> Light-weight, durable

> ASIC scale integration of analog circuits

SMA Solar Technology

Thank You

15

2011 CONFIDENTIAL | 1 2011 CONFIDENTIAL | 1

GREG MADIANOS

PRODUCT LINE DIRECTOR, SOLARBRIDGE TECHNOLOGIES

MAY, 2012

SOLARBRIDGE AC MODULE SYSTEM

2011 CONFIDENTIAL | 2

AC MODULES

GRID-COMPATIBLE AC – RIGHT OUT OF THE BOX

2011 CONFIDENTIAL | 3

AC MODULE: WHAT IT IS / IS NOT

NEC defines AC Modules in two places:

• Article 690.2: an AC Modules is a “complete, environmentally protected unit consisting of solar cells, optics inverter and other components, exclusive of tracker, designed to generate AC power when exposed to sunlight”

• Article 690.6: defines the electrical output of an AC module and their specific installation requirements

• An AC Module is tested and certified by an NRTL (UL, CSA, etc) as a complete assembly; the inverter is factory-integrated with the module; and the entire unit carries one end-to-end warranty from the module manufacturer

• Standalone microinverters are tested separately, installed separately, and warranted separately from the PV module

AC Module PV Module + Microinverter

Is

Is

Not

2011 CONFIDENTIAL | 4

AC MODULES VS STANDALONE MICROINVERTERS

AC Modules must meet stringent UL-1703 standards:

• Integrated module must pass resistance tests before and after TC-200

• Integrated module must pass resistance tests before and after HF-10

• Cables / connectors must pass the ‘steel ball test’

Environmental requirements • Same as PV module, +85C backsheet temperature

Integrated inverters are developed jointly with PV module vendors

• Must provide compatible warranty (25 years of power production)

• Very stringent reliability requirements

2011 CONFIDENTIAL | 5

AC MODULES – COMMERCIAL OFFERINGS

IMS Research: by 2015, “45% of microinverters will ship in combination with a module”

2011 CONFIDENTIAL | 6

SOLARBRIDGE AC MODULE SYSTEM

2011 CONFIDENTIAL | 7

SYSTEM OVERVIEW

POWER PORTAL

POWER MANAGER

PANTHEON-ENABLED AC MODULE

2011 CONFIDENTIAL | 8

PANTHEON™ INTEGRATED MICROINVERTER

UNPRECEDENTED RELIABILITY HIGH PERFORMANCE

LOWEST INSTALLATION AND OPERATING COST

• Eliminates failure-prone

components

• UL testing includes PV

module requirements

• Distributed MPPT

• 95.5% Peak Efficiency

• Continuous uptime with no

system outages

• Up to 20% decrease in

installation time

• No inverter replacements over

system life

2011 CONFIDENTIAL | 9

POWER MANAGER

FLEXIBILITY

• Outdoor or indoor mounting location

• Wired to service panel or outlet

• Handles both single- and 3-phase

INFORMATION AT THE POINT OF NEED

• Full-featured site management software onboard

• Onboard LCD display and two-button interface

• DC power source enables immediate install

verification

EXPANDABILITY

• Open software architecture

• USB expansion ports

2011 CONFIDENTIAL | 10

POWER PORTAL

SITE DASHBOARDS MODULE CANVAS MULTISITE DASHBOARDS

• 24/7 web-based access

• Detailed analytics

• Proactive alerts

• Module-level performance

visibility

• Intuitive GUI for site layout

• Portfolio-level view

• At-a-glance status indicators

2011 CONFIDENTIAL | 11

ADVANTAGES OF SOLARBRIDGE-ENABLED AC MODULES

2011 CONFIDENTIAL | 12

BENEFITS OF SOLARBRIDGE-ENABLED AC MODULES

UNPRECEDENTED RELIABILITY

• 0.1% annual FIT rate

• No inverter replacements over life of system

INCREASED ENERGY HARVEST

• Distributed MPPT mitigates effects of shade, mismatch, soiling

• Increased system uptime – no single point of failure

LOWEST INSTALLATION AND OPERATING COSTS

• Module and inverter are fully-integrated at the factory

• Lowest time and cost of installation

2011 CONFIDENTIAL | 13

LABOR SAVINGS ON THE ROOF

2012 CONFIDENTIAL | 13

AC modules offer significant and proven labor savings for installers over stand-alone microinverter systems.

In a refereed time trial on identical roofs, a system with 20 standalone microinverters required 75% more time to install than a SolarBridge ACPV system. This difference is attributed to the additional time required on an stand-alone microinverter system for:

• Installing and securing the trunk and drop cabling

• Installing and securing the standalone microinverters to the racking

• Installing and securing the GEC

• Connecting and securing the DC cables from each microinverter

2011 CONFIDENTIAL | 14

THE RESULTS

AC Modules (SolarBridge) Install Time – 0:58 hrs

DC Modules + Standalone Install Time – 1:42 hrs

2011 CONFIDENTIAL | 15

INSTALLATION COST ADVANTAGE: AC MODULES vs STANDALONE MICROINVERTERS

1. Factory-installed inverter

2. Factory-installed cabling

3. Factory-installed EGC

4. GEC is eliminated

Modules simply plug together

Cost Penalty for Standalone – $945 Cost Penalty – $0.17 per Watt

• 2011 installation • Northern California • 5.4kW system • 2nd story comp shingle roof, 5/12 pitch

2011 CONFIDENTIAL | 16

RELIABLE

EFFICIENT

EASY

SOLARBRIDGE-ENABLED AC MODULES

©2008-2012 Enphase Energy

Microinverters: AC Is The Future

Tefford Reed

Director, Field Applications Engineering

2 ©2008-2012 Enphase Energy

Does Everybody Like A Good Shootout?

Last Settled in 1891

3 ©2008-2012 Enphase Energy | Confidential

Enphase Energy

Growth

– 2.0 million units shipped

– 44,000+ systems installed

– 3,600+ installers

– 33%+ CA residential market share (CSI, March 2012)

– 19%+ CA small commercial market share (CSI, March 2012)

– Largest complete installation: 660kWp in Lake Geneva, WI

Company

– Headquartered in California

– Offices in France, Italy, China, New Zealand, and soon UK.

4 ©2008-2012 Enphase Energy | Confidential

The Next Phase in Solar

Changing the Industry

Traditional Inverter Setup

Enphase Microinverter System

Traditional Central Inverter

Utility

Web-based Management

Communication Gateway

Enphase Microinverter

5 ©2008-2012 Enphase Energy

Why We Are Leading the Microinverter Market

Our Value Proposition

Reliable

Failure rate <.3% per year and backed by 25 yr. warranty

Productive

Superior

energy production. Typically exceeding

PVwatts by 8%

Smart

Fully monitored and

averaging 99.8% achieved uptime

Safe

No high voltages and greatly reduced risk of

DC arc faults

Simple

Easier to design and faster to install

6 ©2008-2012 Enphase Energy

Niche Solution? Not According to Customers

Convergence Energy Solar Farm: Lake Geneva, WI 660kW 2,000 Enphase Micros

Commercial Retail Store: Wayne, NJ. 344.7kW, 1,512 Enphase Micros

Wonderland Mini Storage: London, ON. 224kW, 888 Enphase Micros

Flagship Sun Self Storage: Mashpee, MA. 180kW, 790 Enphase Micros

Poulettes-Skye Farm: Ottawa, ON. 113kW, 526 Enphase Micros

Truckee Sanitary District: Truckee, CA. 123kW, 538 Enphase Micros

Andy's Liquor: Grand Junction, CO. 86.8kW, 381 Enphase Micros

Corte Madera School: Portola Valley, CA. 166.5kW, 740 Enphase Micros

White Tank Branch Library – LEED Wadell, AZ. 53.6kW, 230 Enphase Micros

Sonoma Police Department: Sonoma, CA. 40kW, 282 Enphase Micros

7 ©2008-2012 Enphase Energy

Rapidly Expanding Channels

Independent Installer Growth, Enphase Ecosystem

Source: Enphase Energy

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1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q

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8 ©2008-2012 Enphase Energy

Enphase Is A Market Leader

Enphase is first – First to successfully commercialize the

microinverter

– Three incremental improvements of technology in 5 years (since company inception)

Enphase is proven – Over 2M units shipped and 44,000

systems installed

– Proven in residential & commercial installations

Enphase is the technology leader – 33%+ CA residential market share

– Strong brand. Reputation for quality and outstanding customer service

Enphase

MW

s S

hip

ped

Cumulative

Global Shipments

0

25

50

100

2011

2010

2009

2008

Enphase M175 (Gen1)

Enphase M190 (Gen2)

Enphase M215 (Gen3)

300

200

9 ©2008-2012 Enphase Energy

Enphase Is A Market Leader

Enphase continues to innovate tools that support our installers – Enlighten 3.0

– Array Gun

– Engage Cable

– Revenue Grade Meter

10 ©2008-2012 Enphase Energy

Enphase Is A Market Leader

Enphase has strong brand preference among its customers – Popular community forums,

social media channel engagement

– Customers want to be part of our story—offer to showcase their installation experiences, photos and why they choose Enphase

– Events are well-attended

11 ©2008-2012 Enphase Energy

Call To Arms

If you are a PV installer or homeowner, do just one install with us and Experience Enphase for yourself.

If you are around after the show come out and join us at a MicroMeetup here or in your hometown!

Austin, TX 5/29/2012

Dallas-Fort Worth, TX 5/23/2012

San Antonio, TX 5/25/2012

New Orleans, LA 5/31/2012

Baltimore, MD 6/5/2012

Philadelphia, PA 6/6/2012

North Brunswick, NJ 6/7/2012

Long Island, NY 6/8/2012

Custer, MREA Fair, WI 6/15/2012

Chicago, IL 6/19/2012

Niagara Area, ON 6/21/2012

Toronto, ON 6/22/2012

Kingston, ON 6/26/2012

St. Louis, MO 6/29/2012

Boise, ID 7/5/2012

Seattle, WA 7/9/2012

Portland, OR 7/11/2012

http://enphase.com/roadshow/

12 ©2008-2012 Enphase Energy