Certified Installers

Battery storage

Fortress Power

Fortress Power is a storage-focused brand built around lithium battery systems for homes and businesses. It fits projects where backup capacity, solar self-consumption, and future expandability matter.

Why Fortress Power Modular battery options let a system grow with the property instead of locking the customer into a one-size setup.

Where DUO uses it Residential backup, commercial storage rooms, and projects that need a clean path from essential loads to larger battery banks.

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Generator backup

Cummins

Cummins is a long-established power generation brand with options ranging from residential standby units to commercial generator systems. It is a strong fit when the project needs longer runtime support or larger electrical loads.

Why Cummins A wide generator portfolio makes it easier to plan backup around homes, businesses, and facilities with different load profiles.

Where DUO uses it Properties that need dependable backup beyond batteries alone, especially during extended outages or high-demand operation.

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Whole-home energy control

FranklinWH

FranklinWH combines battery storage with a home energy management system designed to coordinate solar, grid power, battery backup, and generator support. It works well for customers who want a cleaner, more coordinated energy experience.

Why FranklinWH The ecosystem approach helps simplify how multiple energy sources are monitored and used during normal days and outages.

Where DUO uses it Homes that want battery backup with smart control, clean installation, and room to support more energy needs over time.

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Home battery storage

Tesla Powerwall

Powerwall stores energy from solar or the grid, can provide backup during outages, and lets customers monitor their home energy system through the Tesla app. DUO installs it where a streamlined residential storage solution fits the project's electrical needs.

Why Tesla Powerwall combines energy storage, outage backup, and app-based monitoring in a compact residential format.

Where DUO uses it Homes that need proportional battery backup and solar energy storage planned around essential loads and available wall space.

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Solar modules

Canadian Solar

Canadian Solar is a global solar technology and module manufacturer used in residential, commercial, and utility-scale projects. It fits DUO projects where dependable solar production and practical module availability are priorities.

Why Canadian Solar Its broad module lineup supports different roof spaces, commercial layouts, and production goals without changing the core solar strategy.

Where DUO uses it Solar arrays that need consistent production as the first layer of a larger system with storage or generator backup.

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Hybrid inverters

Sol-Ark

Sol-Ark hybrid inverters help bring solar, batteries, grid power, and generator backup into one flexible power architecture. They are especially useful when a property needs several energy sources working together.

Why Sol-Ark The hybrid inverter approach gives designers more flexibility when combining solar production, storage, and backup power.

Where DUO uses it Projects that need a central control point for solar-plus-storage designs, generator support, or future-ready system planning.

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Energy storage inverters

Lux Power

LuxpowerTek focuses on solar inverters, energy storage solutions, and energy management systems. It fits projects where solar production and batteries need to be coordinated through a practical inverter platform.

Why Lux Power Its inverter and storage approach supports systems that need solar, battery backup, and smart energy use working together.

Where DUO uses it Solar-plus-battery installations where the inverter strategy matters as much as the panels and batteries selected.

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Solar racking and mounting

IronRidge

IronRidge designs structural hardware for residential and commercial solar systems, including racking, mounts, and accessories that help make solar installations stronger. DUO uses IronRidge where its racking and mounting approach is appropriate for the roof, site conditions, and structural plan.

Why IronRidge The mounting system is what physically ties the solar array to the property, so structural quality matters before the first kilowatt is produced.

Where DUO uses it Roof and site solar installations where DUO wants the array, anchors, and accessories to match the reliability expected from the full system.

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