Training - APsystems USA | The global leader in multi-platform MLPE technology

APsystems Training Portal

Your Gateway to Expert Solar Training

Free, On-Demand Training for Solar Installers. Gain the skills and certifications you need—anytime, anywhere.

100% Free Certification Courses. Required for APsystems Installations. Earn NABCEP Continuing Education Credits. Flexible, Learn at Your Own Pace.

Start Your Training Today!

Note

Completing the ECU/EMA course in APacademy is manadatory for all first time APsystems installers. Only once you have completed the course(s) will you be able to register for an EMA account.

Product Document Library

APsystems offers many document resources to support installers with their APsystems installations including datasheets, installation manuals, quick install guides and more…

Datasheets & Manuals

APPS & TOOLS

Find essential APsystems tools and apps for installers and system owners, including system setup and monitoring apps, the APdesigner design tool, and our Module Compatibility Calculator.

Explore Tools & Apps

FAQ

Your answer could be available at your fingertips! If you have general questions, we highly recommend you check out our Frequently Asked Questions.

Frequently Asked Questions

EMA Account Registration / Login

In order to set up your residential homeowner and commercial site-owner customers with a system-monitoring account, you will need to contact APsystems using our registration form available on our registration page.

EMA Registration

Installation Training Videos

View our full array of helpful videos on our Youtube Channel

Training Videos: Microinverters

In this quick install walkthrough, we break down how to set up your trunk line, mount the micro, and make clean, solid connections—no guesswork.

You’ll see:
How to prep and cap your trunk cable
Mounting and torque tips that actually matter
Clean wire management (because nobody likes a messy roof)
Dual-channel connections done right

Less time on the roof. Less callbacks later. That’s the DS3 difference.

Learn more about our DS3 here: https://usa.apsystems.com/ds3/

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DS3 Microinverter Installation Training in Action ⚡ Faster Installs, Fewer Headaches

APsystems North America April 20, 2026 2:41 pm

Getting your DS3 install right starts with the details.

From removing the protective cap on the trunk line to ensuring solid end cap connections, every step matters for performance and reliability in the field.

Quick reminders:

⚡ Always remove the protective cap before plugging in your microinverter
⚡ Avoid bending or kinking trunk lines and DC whips during layout
⚡ Make sure end caps are fully seated and secure
⚡ Plan proper connection points for clean wire management

The DS3 system is built for efficiency, with a 3-wire trunk line and improved whips to help create smoother, more flexible installs.

Watch our new DS3 Training Video here: https://youtu.be/BehqCNHJEtk?si=U69r2-6espiULk7g
Learn more about our DS3 here: https://usa.apsystems.com/ds3/

#APsystems #SolarInstallers #Microinverters #SolarEnergy #CleanEnergy

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Getting your DS3 install right starts with the details

APsystems North America May 2, 2026 5:39 pm

This video provides a brief overview of the installation and commissioning processes of the DS3 series, APsystems’ 3rd generation of dual-module microinverters.

APsystems DS3 Microinverter series – Installation video

APsystems North America February 9, 2024 6:42 am

Find out why the DS3 microinverter series from APsystems is a gamechanger for the solar industry. DO MORE WITH LESS! The DS3 saves time and money like all APsystems microinverters, but head-to-head with competitors it also means winning bids and putting more profit into your pocket.

DS3 Product Overview and Installation Training

APsystems North America April 27, 2022 7:53 pm

This webinar covers the steps necessary to complete the system installation with the ECU gateway, the new EMA Manager features and how to use it to manage your homeowner accounts, as well as features and final steps in the EMA online portal.

ECU-R Gateway and EMA Portal Overview & Features

APsystems North America February 10, 2022 9:43 pm

Discover the advantages of the QT2 3-Phase microinverter for C&I applications. This training will cover the new QT2 microinverter product line, including the QT2-208V and QT2-480V. Attendees will learn the benefits of QT2 microinverters for commercial solar as well as tips and tricks for rapid installation.

QT2 C&I Microinverter Product Overview and Installation Training

APsystems North America February 2, 2023 9:31 pm

Training Videos: DIY Microinverters

See just how EZ plug-in solar can be with the APsystems EZ1.

In this hands-on training video from Flagstaff, we install two EZ1 plug-in microinverters with four solar panels on a real balcony setup. Along the way, we walk through what comes in the box, EZ1 app setup, parallel cable connections, key product features, and how quickly a portable solar system can come together.

Designed for simple installation and everyday energy savings, the EZ1 makes balcony, patio, and portable solar easier than ever for homeowners, DIY users, and installers alike.

Two EZ1 units can even be paired together for up to 1,800W of plug-in solar power on a standard 15A circuit.

That’s how EZ it is!

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EZ1 Makes Balcony Solar Easy: 4-Panel Plug-In Installation Training

APsystems North America May 27, 2026 12:21 am

Plug in & power up with EZ1

Teddy Hodges shows just how simple solar can be. Connect your panel(s), plug the EZ1 micro into a standard outlet, download the AP EasyPower app, and connect via Bluetooth to start monitoring production in real time. In just a few easy steps, you’re generating power and tracking performance right from your phone.

Dual-module performance, built-in Wi-Fi & Bluetooth, and no complicated install.

Do-it-yourself solar, made EZ — from APsystems.

https://go.apsystems.com/ez1-portable-solar

#APsystems #EZ1 #Microinverter

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Plug-in & Power Up with EZ1

APsystems North America March 2, 2026 8:51 pm

Learn how to connect to EZ1 via Bluetooth with this step-by-step guide from APsystems. Whether you're a solar installer or homeowner, this walkthrough makes connecting your EZ1 inverter fast and simple. Discover how to enable Bluetooth, pair your device, and troubleshoot connectivity—perfect for first-time users or anyone needing a quick refresher.

This APsystems Bluetooth tutorial ensures you're always in control of your energy monitoring, right from your smartphone. Get connected in just a few minutes and start managing your solar power like a pro.

Stay Connected: https://apsystems.com

#APsystems #EZ1 #BluetoothConnection #SolarInverter #SolarPower #SolarInstallation #EZ1Setup #BluetoothSetup #RenewableEnergy #SmartEnergy #CleanTech #SolarSolutions #HowToConnectEZ1 #InverterBluetooth #SolarTech #GreenEnergy #SustainableLiving #EnergyMonitoring #HomeEnergy

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AP EasyPower APP: Direct Connect Mode

APsystems North America July 6, 2023 6:35 pm

Learn how to quickly register your account in the APsystems EasyPower App and easily link your EZ1 microinverter for seamless energy monitoring and system control. This step-by-step guide walks you through the APsystems account setup process and shows how to connect the EZ1 device, making your solar energy system smarter and more efficient. Perfect for installers, homeowners, or anyone using APsystems solar solutions.

Stay Connected: https://apsystems.com

#Hashtags:
#APsystems #EasyPowerApp #EZ1 #Microinverter #SolarSetup #SolarMonitoring #SolarEnergy #GreenEnergy #HomeSolar #SmartEnergy #SolarTech #RenewableEnergy #CleanEnergy #SolarPower #SolarInstaller

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AP EasyPower APP: Remote Mode – Register & Link

APsystems North America July 21, 2023 7:38 pm

AP EasyPower Direct Connect Mode

APsystems North America March 27, 2026 11:34 pm

AP EasyPower Remote Mode Register & Link

APsystems North America March 27, 2026 10:33 pm

Ready to bring solar power to your garden? In this video, we walk you through how easy it is to install the EZ1 microinverter with standard solar panels in a ground-mounted setup.

Step-by-step, we cover:
🛠️ Mounting the bracket
🌱 Installing the panels
⚡ Connecting the microinverter
🔌 DC wiring
🔌 AC connection
📲 Setting up the system in the app

With EZ1, turning your outdoor space into a clean energy source is simple. Plug in, power up, and start generating.

Learn more 👉 https://usa.apsystems.com/ez1

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EZ1 Microinverter Installation (Garden Setup)

APsystems North America March 27, 2026 11:48 pm

Looking for a simple solar solution for your home? This video shows how the EZ1 microinverter makes it easy to generate your own power—right from a small space.
No complicated setup. Just plug in and start producing clean energy.
If you’re ready to get started with plug-and-play solar, EZ1 is built for you.
Learn more 👉 https://usa.apsystems.com/ez1

EZ1 Microinverter Installation Introduction

APsystems North America March 27, 2026 11:50 pm

Working with flexible solar panels on your balcony? This setup keeps things simple—no mounting brackets required.

In this video, we show you how to get up and running:
🌱 Install the panels
⚡ Connect the microinverter
🔌 DC wiring
🔌 AC connection
📲 Connect and monitor in the app

From setup to power in minutes, EZ1 makes balcony solar easy and accessible.

Follow along and see how simple it is to start generating your own energy.

Learn more 👉 https://usa.apsystems.com/ez1

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EZ1 Microinverter Installation (Balcony + Flexible Panels)

APsystems North America March 27, 2026 11:53 pm

In this video, we show you how to get up and running:
🌱 Install the panels
⚡ Connect the microinverter
🔌 DC wiring
🔌 AC connection
📲 Connect and monitor in the app
From setup to power in minutes, EZ1 makes balcony solar easy and accessible.
Follow along and see how simple it is to start generating your own energy.
Learn more 👉 https://usa.apsystems.com/ez1

EZ1 Balcony Scenario Application (Standard)

APsystems North America April 1, 2026 8:55 pm

https://www.solar-electric.com/naz-balconysolar-roof-kit-001.html

We're excited to offer the new 120V balcony, or "plug-and-play," solar microinverter from APSystems featuring dual mppt inputs and integrated wi-fi monitoring. This product meets Utah's balcony solar rules which allows system AC output up to 1,200 watts without a permit. Be sure to check with your state regulations as well as any local jurisdictions and your landlord or HOA before purchasing.

0:00 -- Intro
0:45 -- What's in the Boxa
1:17 -- EZ1-LV Capabilities
1:45 -- The AP EasyPower App
2:20 -- Test Array Setup
2:46 -- Outro

Shop here: https://www.solar-electric.com/apsystems-ez1-lv-na-balcony-solar-microinverter.html

NAZ Solar Electric, based in Flagstaff, Arizona, has been a trusted solar equipment distributor for over 45 years. We provide system design, equipment distribution, and technical support for residential and commercial solar projects across the U.S. and globally.

Phone: 800-383-0195
Email: sales@solar-electric.com
Website: https://solar-electric.com
NAZ Solar Electric would love to chat with you. Have questions? https://www.solar-electric.com/capr.html

Request a quote on individual components or an estimate for a complete plug-and-play system. Let us know what you're looking for and we'll send you a quote.

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Unboxing the EZ1-LV 120V Balcony Solar Microinverter from APSystems

APsystems North America March 20, 2026 2:10 am

A quick explainer on how to expand a balcony solar setup and the products you need to do it.
Shop @APsystemsSolar balcony solar products here 👉 https://bit.ly/ShopBalconySolar
#plugintosolar #microinverter #solarinstallation #diysolar

NAZ Balcony Solar Ballast Rack Kit : https://www.solar-electric.com/naz-balcony-solar-ballast-rack-kit-002.html

NAZ Solar Electric, based in Flagstaff, Arizona, has been a trusted solar equipment distributor for over 45 years. We provide system design, equipment distribution, and technical support for residential and commercial solar projects across the U.S. and globally.

Phone: 800-383-0195
Email: sales@solar-electric.com
Website: https://solar-electric.com
NAZ Solar Electric would love to chat with you.
Have questions? https://www.solar-electric.com/capr.html

Request a quote on individual components or an estimate for a complete plug-and-play system. Let us know what you're looking for and we'll send you a quote.

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How to Add Panels and EZ-1 Inverters to Balcony Solar Setup

APsystems North America May 8, 2026 3:46 pm

Ready to add zero export control to your EZ1 system? In this new training video, Teddy Hodges walks through the complete APmeter setup process, including how to install the meter and CT clamp in your electrical panel and connect everything using the AP EasyPower app.

The video covers hardware installation, Wi-Fi setup, device pairing, and how to enable the export limit function to keep excess solar energy from being sent back to the grid. Whether you're a homeowner, renter, or installer, this step-by-step guide shows just how easy it is to get your APmeter up and running.

Learn more about EZ1 here: https://usa.apsystems.com/ez1
Order APmeter here: https://apshop.apsystems.com/products/apmeter

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TRAINING VIDEO: How to install & configure APmeter zero export solution for EZ1

APsystems North America June 1, 2026 7:03 pm

Training Videos: APstorage

Installation of APstorage System

APsystems North America December 24, 2024 3:17 pm

Doug Hewitt with APsystems walks us through the installation basics on the new ELS-5k Battery Inverter and APbattery products for home energy storage.

APstorage Installation Walkthrough

APsystems North America February 9, 2024 6:17 am

This video mainly introduces the steps and methods for the initial installation, commissioning and use of ELS-5K.

ELS-5K NA V6 Initialization process

APsystems North America June 28, 2025 5:40 pm

ELS-5K NA V4 Initialization process

APsystems North America June 28, 2025 5:38 pm

Start your journey into APsystems’ advanced energy storage with Part 1 of the APstorage training series. This video covers an in-depth system overview, including APstorage products, components, compatible battery brands, and power modes like backup, self-consumption, and time-of-use. Learn about off-grid, grid-tied, and hybrid functionality, network connectivity, and power assessment strategies. Plus, gain insights into system comparison, warranty coverage, ampacity planning, load center connections, and how to determine backup and off-grid requirements.
Watch the full APstorage training series:
Part 1: APstorage Intro + System Design (you are here)
Part 2: APstorage Installation Procedure
Part 3: APstorage System Commissioning
Stay Connected: https://apsystems.com
#APsystems #APstorage #EnergyStorage #SolarStorage #SolarDesign #SolarInstallers #SolarSystemDesign #BackupPower #TimeOfUse #OffGridSolar #HybridSystem #GridTiedSolar #BatteryStorage #RenewableEnergy #CleanEnergy #LoadCenter #Ampacity #SolarTraining #SolarComponents #PowerAssessment

APstorage PART 1 of 3: System Intro + Design (including: overview, products and system components, compatible battery brands, modes [backup, self-consumption, and time-of-use], function options [off-grid, grid-tied, or hybrid], network connectivity, power assessment, competitive advantage and comparison, warranty, determining backup needs, assessing off-grid needs and ampacities, load center connections)

Watch all 3 videos for the full APstorage system training!
PART 1: APstorage Intro + Design
PART 2: APstorage Installation Procedure
PART 3: APstorage System Commissioning

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APstorage Training Webinar PART 1: System Intro + Design - Aug 2023

APsystems North America August 7, 2023 8:08 pm

In Part 3 of the APstorage video training series, learn how to commission an APstorage energy storage system from start to finish. This detailed walkthrough includes all essential steps: preparation, using the ECU and EMA app, connecting the PCS to the network, setting the system mode, PV association, creating user accounts, and checking LED indicators. Plus, verify battery RS485 and CAN wiring, CT direction, and location. Ideal for solar installers seeking reliable energy storage setup and commissioning guidance.
Watch the full APstorage training series:
Part 1: APstorage Intro + System Design
Part 2: APstorage Installation Procedure
Part 3: APstorage System Commissioning (you are here)
Stay Connected: https://apsystems.com
#APsystems #APstorage #EnergyStorage #SolarStorage #SolarInstallers #Commissioning #EMAApp #ECU #BatteryStorage #SolarTraining #CleanEnergy #RenewableEnergy #HomeBattery #SolarPower #SmartEnergy #CTDirection #RS485 #SolarTech #Microinverters

APstorage PART 3 of 3: System Commissioning (including: preparation, apps, EMA account, ECU, commissioning process [breakers, batteries, connect PCS to network, set system mode, PV association, creating user accounts, EMA app, LED indicators, checks [battery RS485, CAN wiring, CT direction and location])
Watch all 3 videos for the full APstorage system training!

PART 1: APstorage Intro + Design
PART 2: APstorage Installation Procedure
PART 3: APstorage System Commissioning

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APstorage Training Webinar PART 3: System Commissioning - Aug 2023

APsystems North America August 7, 2023 8:15 pm

In Part 2 of the APstorage training series, APsystems covers the full installation procedure for the APstorage energy storage solution. This includes guidance on layout, compatibility, tools, placement, clearance, mounting, wiring, battery setup, breakers, communications, CTs, subpanels, transformers, and system connections.
This video is designed for solar installers and professionals looking for clear, reliable training on how to install the APstorage system safely and efficiently.
Be sure to watch all three parts of the series for complete system training:
▶ PART 1: APstorage Intro + Design
▶ PART 2: APstorage Installation Procedure (this video)
▶ PART 3: APstorage System Commissioning
Stay Connected: https://apsystems.com
#APsystems #APstorage #SolarTraining #EnergyStorage #BatteryStorage #SolarInstallation #CleanEnergy #RenewableEnergy #SolarPower #PVSystems #SolarEnergy #Microinverters #InstallerTraining #SmartEnergy #StorageSolutions

APstorage Training Webinar PART 2: Installation Webinar v1 - Aug 2023

APsystems North America August 7, 2023 7:51 pm

Training Videos: ECU

This video provides a step-by-step guide on installing and setting up the APsystems ECU-C. It explains the ECU-C’s role as a data gateway for microinverters, details installation requirements, antenna connections, AC wiring for single-phase and three-phase systems, and network setup via Wi-Fi or Ethernet. The tutorial also shows how to register inverters, establish Zigbee communication, and configure CT meters for monitoring power generation, consumption, and enabling anti-backflow functions.

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ECU-C-----Part I Installation

APsystems North America October 7, 2025 4:02 pm

This video demonstrates how to configure the Zero Export function on the APsystems ECU-C. It explains compatibility, setup in the EMA Manager app, and how to set power limits to control inverter output. Examples illustrate how the ECU-C dynamically adjusts PV production in real time to prevent excess energy from being exported to the grid while meeting onsite demand.

ECU-C----Part II Export Limit Function

APsystems North America October 7, 2025 4:02 pm

ECU-C Gateway and EMA Portal Overview & Features

APsystems North America February 2, 2023 9:29 pm

How to connect the ECU to a wifi network

APsystems North America November 4, 2022 9:26 pm

ECU-R Gateway and EMA Portal Overview & Features

APsystems North America February 10, 2022 9:43 pm

Training Videos: Combiner Box

Simplify Your Installs with the APsystems Combiner Box

Check out the new APsystems Combiner Box video and see how this all-in-one solution is designed to make installs faster, cleaner, and easier to manage in the field.

Built specifically for APsystems microinverter systems, the Single-Phase AC Combiner Box combines AC connections, integrated ECU-R communication, revenue-grade monitoring, CTs, and power distribution into one compact, weather-resistant enclosure.

The video walks through installer-friendly features like pre-wired components, pre-landed terminals, expandable breaker support, removable communication hardware, and included accessories that help simplify commissioning and reduce install time.

“Everything’s pre-wired. The only thing you’re adding is your solar strings and your grid-side power.”
From cleaner wiring layouts to built-in production and consumption monitoring, the APsystems Combiner Box helps streamline installs while delivering accurate system visibility from day one.

Learn more about the APsystems Combiner Box here: https://usa.apsystems.com/resources/combiner-box/?utm_source=chatgpt.com

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Simplify Your Installs with the APsystems Combiner Box

APsystems North America May 20, 2026 7:44 pm

This video is a complete instructional guide to installing the APsystems AC Combiner Box. We cover everything from mounting, conduit drilling, DG breaker installation, PV/grid CT wiring, and ECU-R setup, to enabling anti-backflow (zero export) through the EMA platform.
What you’ll learn in this video:
What’s included in the Combiner Box package
Required tools for installation
Step-by-step mounting and wiring instructions
How to connect PV CTs and Grid CTs correctly
ECU-R setup with 4G LTE dongle and monitoring via EMA
How to enable anti-backflow (zero export control)
⚡ Important: Always follow NEC and local electrical codes, and ensure the load current does not exceed 250A.

Introduction to Combiner Box

APsystems North America June 28, 2025 5:35 pm

How to Install the APsystems AC Combiner Box | Step-by-Step Guide

Looking to streamline your solar installation? This instructional video walks you through the complete process of installing the APsystems AC Combiner Box—from unboxing to final setup.

Whether you're a seasoned installer or new to APsystems, this guide is designed to ensure a smooth, safe, and efficient installation experience.

#SolarInstallation #APsystems #ACCombinerBox #SolarEnergy #InstallerTraining #CombinerBox

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How to Install the APsystems AC Combiner Box | Step-by-Step Guide

APsystems North America April 15, 2025 12:41 am

Training Videos: Apps

EMA Manager App: Register a New Customer

APsystems North America June 17, 2021 5:27 pm

EMA Manager App: Local Commissioning Tool

APsystems North America June 17, 2021 5:26 pm

EMA Manager App: High Efficient Management and Maintenance

APsystems North America June 17, 2021 5:26 pm

The EMA Manager App allows installers to control APsystems microinverter system commissioning, monitoring and troubleshooting. Users can now enhance their customers service capabilities anywhere, anytime via their smartphone or tablet. This app conveniently streamlines monitored system installation while providing installers with many new and improved features for remote site management.

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EMA Manager App - an all-in-one application for solar professionals

APsystems North America May 9, 2021 3:47 pm

For installers: Using the APsystems EMA Manager App to commission a system

APsystems North America July 7, 2023 6:58 pm

Explore the powerful capabilities of AP Designer, the all-in-one solar design and planning tool from APsystems, built to streamline the PV system design process from concept to completion.
In this video, we take a deep dive into how AP Designer empowers installers, EPCs, and solar professionals to create smarter, faster, and more accurate solar designs. With intuitive smart features and real-time automation, the platform simplifies everything from site planning to project evaluation.
Key features of AP Designer include:
Google Maps-based site selection – Precisely choose installation sites and model them using real satellite imagery for optimal layout and shading analysis.
PV module layout design – Design detailed module placements with drag-and-drop simplicity to maximize space and energy yield.
Automated electrical wiring – Save time with intelligent wiring configuration suggestions that comply with best practices and system requirements.
BOM (Bill of Materials) generation – Automatically create a detailed list of components needed for procurement and planning.
Evaluation reports – Instantly generate reports covering system cost estimates, production forecasts, and performance analysis to support customer proposals and ROI presentations.
Whether you’re designing a small residential system or a complex commercial PV project, AP Designer makes solar planning smarter and more efficient. Join us in this video walkthrough to see how this versatile tool can transform your solar workflow.
Stay Connected: https://apsystems.com
#APsystems #APDesigner #SolarDesignTool #SolarPlanning #PVSystemDesign #SolarSoftware #SolarProposalTool #BOMGeneration #PVLayout #GoogleMapsSolarDesign #SmartSolarDesign #SolarEstimator #SolarTools #CleanEnergy #SolarWorkflow #SolarInstallers #RenewableEnergy #SolarEngineering #SolarProjectPlanning #EnergyEfficiency

AP Designer: APsystems’ PV system design tool

APsystems North America October 25, 2023 7:00 pm

The APdesigner is the new tool that will help installers complete their APsystems PV system design and generate an evaluation report automatically. In this way, the installer will be able to have in the same document the previous installation, electrical loads, consumption, investment return, project costs and much more.

An online tool that is easy to use and handles satellite positioning for the site.

Benefits:
🔸Real time simulation
🔸PV module library management
🔸Support multi-mode design in multiple service scenarios
🔸Support PV module layout design
🔸Support electrical wiring design
🔸Support bill of materials generation.
🔸Support power plant cost estimation.
🔸Free setting power consumption model
🔸Auto generate power plant evaluation report

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Create the design of your PV project from our new sizing tool, APdesigner.

APsystems North America October 30, 2023 5:11 pm

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AP EasyPower APP: Direct Connect Mode

APsystems North America July 6, 2023 6:35 pm

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AP EasyPower APP: Remote Mode – Register & Link

APsystems North America July 21, 2023 7:38 pm

How to connect the ECU to a wifi network

APsystems North America November 4, 2022 9:26 pm

This video provides step-by-step instructions for DIY users on how to configure the APsystems system and complete the DIY registration process. Whether you're setting up your first solar system or fine-tuning your EZ1 microinverter, this guide walks you through everything you need to know—from initial setup to final registration.

Designed specifically for homeowners and non-installers, this APsystems tutorial helps you get up and running with your solar system safely, easily, and without professional help.

Stay Connected: https://apsystems.com

#APsystems #DIYRegistration #SolarDIY #EZ1 #SystemConfiguration #HomeSolar #SolarSetup #Microinverter #PlugAndPlaySolar #SmartSolar #SolarForBeginners #SolarInstallGuide #CleanEnergy #RenewableEnergy #DIYHomeEnergy #GreenLiving #SolarMonitoring #SafeSolar #SolarTech #EnergyIndependence

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For DIY users: how to configure the system and register the account

APsystems North America June 24, 2023 5:33 pm

AP EasyPower Direct Connect Mode

APsystems North America March 27, 2026 11:34 pm

AP EasyPower Remote Mode Register & Link

APsystems North America March 27, 2026 10:33 pm

Tech Support Videos

In this video, we explain how to solve poor communication issues in photovoltaic systems. Watch the step-by-step guide:

Key checks and solutions:

If the EMA data interval exceeds 1 hour or inverters frequently delay data → communication quality is poor

If the ECU is installed indoors or inside a junction box → use an extended antenna and mount it outdoors

Relocate the ECU to the center of the array, and install it in a waterproof box to shorten the communication distance

Reduce interference from nearby wireless sources (e.g., base stations, routers)

Install a signal amplifier/booster to enhance communication

If the issue persists, please contact APsystems technical support

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10 System Communication Issues

APsystems North America September 18, 2025 11:20 pm

In this video, we explain how to fix communication issues with some inverters when they fail to connect with the ECU. Follow our step-by-step troubleshooting process to restore stable communication.

Key points covered:

Restarting the ECU to trigger automatic firmware updates

Verifying the inverter UID in the ECU/EMA system

Re-establishing the Zigbee network for proper communication

Adjusting ECU placement or using antenna/cable extensions for better signal

Checking inverter status lights for normal or faulty operation

✅ Normal inverter operation lights:

Green (slow flash, 10s): Generating power + communicating

Green (fast flash, 2s): Generating power but no communication for 1+ hour

Red flashing: Inverter fault

⚠️ If a red light or abnormal status appears, please contact APsystems technical support.