OPTI-Solar

What OPTI-Solar does

OPTI-Solar is a Taipei, Taiwan-headquartered solar power inverter manufacturer operating as a brand of OPTI International Corporation, which has roots in power protection since 1991 under the OPTI-UPS brand. Founded in 2007, the company designs, manufactures, and distributes a focused portfolio of off-grid, on-grid (grid-tie), and hybrid solar inverters ranging from 1.2kW residential units to 50kW three-phase systems, alongside MPPT solar charge controllers and BMS Card/Box accessories that coordinate inverter operation with lithium batteries. The company's claimed technical differentiator is an advanced analog MPPT algorithm it states locks onto the maximum power point in less than one-thousandth of a second, supporting inverter efficiency ratings above 96–97% on certain product lines.

The business runs on a channel-led model: revenue is generated primarily through hardware sales to a global authorized distributor network spanning 40+ countries across Africa, Asia, Central America, South America, Europe, the Middle East, and selected portions of North America, supported by direct regional offices in Taiwan, the United States, Dubai, the Netherlands, and Japan. Secondary revenue streams include after-sales service and warranty repairs (through an authorized European service center in Schiedam and a Dubai branch with showroom/warehouse), and paid technical training for distribution partners delivered in Taipei. Pricing is not publicly disclosed; sales are quote-based through regional managers and distributors, with warranty terms of two years on inverters.

The customer base is fragmented across residential, commercial/industrial, agricultural (solar pumping), rural off-grid communities, and emerging-market PAYGO segments, with marquee engagements including the Dubai Electricity & Water Authority, Dubai Police radar systems, vineyard energy storage in Hokkaido with CEF Japan, and PAYGO deployments in Nigeria via Solynta Energy. The company holds ISO 9001, a broad set of EN/IEC/VDE safety and EMC certifications for its inverter lines, and was selected as a recommended microgrid manufacturer by Taiwan's Industrial Technology Research Institute (ITRI) in 2020.

Name

OPTI-Solar

Legal name

OPTI International Corporation

Website

https://opti-solar.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

51–100 employees

Short description

OPTI-Solar is a Taiwan-based manufacturer of off-grid, on-grid, and hybrid solar inverters (1.2kW–50kW) plus MPPT charge controllers, selling globally through a 40+ country authorized distributor network and regional offices in Taiwan, the USA, Dubai, the Netherlands, and Japan, serving residential, commercial, agricultural, and off-grid customers.

Ownership category

akta.pro rank

Product category

Solar Power Inverters

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313)

SIC

Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Solar Inverters, Power Electronics & MLPE (String/Central Inverters, Optimizers, Microinverters) (EUAMABAE)

akta.pro secondary industries

Power Electronics for Renewable & Grid-Tied Applications (Solar inverters, wind converters, grid-tie interfaces) (IMAGADAJ), PV Balance of System (BOS) & Electrical Infrastructure (Inverters, Transformers, Cabling, Substations) (EUACAGAC)

Keywords

• Solar inverters
• Hybrid power inverters
• Grid-tied inverters
• Solar pump chargers
• MPPT charge controllers

Headquarters

HQ city

Taipei

HQ country

Taiwan

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Solar Inverter Hardware Sales: OPTI-Solar generates revenue primarily through the sale of solar inverters including Single Phase Hybrid, Three Phase Hybrid, Off-Grid, On-Grid, and Pump Solar Inverters, along with accessories like BMS Cards/Boxes and mounting kits.
2. After-Sales Service and Repair: Provides after-sales technical support, warranty repairs through Authorized Service Center in Europe and Dubai branch. Charges apply for units outside warranty period including component costs, handling fees, and return freight.
3. Technical Training Services: Offers technical training sessions for new partners held in Taipei, Taiwan. Training covers solar installation types, product selection, system design, and MPPT vs PWM charging logic demonstrations.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

OPTI-Solar manufactures solar power inverters and related power conversion equipment for residential, commercial, and industrial applications. Its product range spans grid-tied, off-grid, and hybrid inverters in single-phase and three-phase configurations, along with solar pump inverters, MPPT solar chargers, and battery management system (BMS) accessories. Products are sold globally through authorized distributors and regional offices in the USA, Middle East, Europe, and Japan.

Product overview

OPTI-Solar offers a comprehensive portfolio of solar inverters and energy solutions organized into three main product categories: Three Phase Hybrid Solar Inverters (SP Premium Plus 10-50K, SP Premium 10K-15K), Single Phase Hybrid Solar Inverters (including SP Brilliant Ultra II, SP Handy Grid III, SP Handy II, SP Handy Plus II, SP Handy Plus, SP Handy, SP Handy Ultra, SP Initial-M(II), SP IP Grid HV, SP IP Grid, SP Power One, and SP Regal Ultra series), and Pump Solar Inverters & Solar Chargers (SC-MAX, SC-SM/SM-Z, SC-3KW MPPT, SC-MPPT, and SP Revival series). The company also provides BMS Card/Box accessories for lithium battery integration. OPTI-Solar's product strategy focuses on off-grid, on-grid, and hybrid solar solutions, with products ranging from entry-level 1.2K residential inverters to industrial-scale 50K three-phase systems. Their hybrid inverters combine solar, battery, and utility grid power management, while their pump inverters specialize in solar-powered water pumping applications for agriculture and remote areas.

Differentiator

Problem solved

Functional benefit

Brands

• Solar Power: Software for Linux 32Bit/64Bit, Mac, and Windows for monitoring and controlling OPTI-Solar inverters.
• Solar Power Pro
• Watch Power
• MPPTracker

Products and services

• Three Phase Hybrid Solar Inverters (SP Premium Plus, SP Premium)

Quantifiable outcome

• MPPT technology delivers 99.7W from solar array vs 69.6W without MPPT (43% efficiency gain)
• +2 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core, major and regional.

• SEGL EnergycoreTechnology or Integration · 1 January 2023Lithium battery supplier partner providing BMS-compatible battery solutions. Collaborated on 20ft solar containers for local power distribution and 150KW solar energy storage system in Japan. BMS technology is perfectly matched between OPTI-Solar inverters and SEGL batteries.
• CEF Japan CompanycoreStrategic or Co-development Partner · 1 January 2023Collaboration on 50KW solar energy storage system installation in Hokkaido Province, Japan for vineyard cultivation. True hybrid design using 100% solar power for agricultural application.
• Volteq Systems LimitedcoreChannel Partner/ Reseller/ Distributor · 1 January 2023Partner in Ghana installing solar systems with 4 inverters for building power demands. Reduces heat during sunny days and provides renewable energy with added comfort.
• Solynta EnergycoreChannel Partner/ Reseller/ Distributor · 1 January 2022Partner in Nigeria distributing PAYGO solar systems with customized PAYGO inverters. Enables customers who originally use generators to switch to solar energy with easy payment options.
• Enerco SRLcoreChannel Partner/ Reseller/ Distributor · 1 January 2022Partner in Romania executing successful solar installations including power backup systems in rural houses and mountain locations. Multiple successful projects documented.
• Industrial Technology Research Institute of Taiwan (ITRI)majorStrategic or Co-development Partner · 1 January 2020Selected as a recommended manufacturer of microgrid systems. Applies ITRI's green energy technologies demonstrating energy creation, storage, saving, and system integration capabilities.
• VG Energy Storage BVregionalImplementation/ SI/ Consulting PartnerAuthorized Service Center Europe in Schiedam, Netherlands providing after-sales service, warranty repairs, and technical support for European market customers.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• SolaX Power: SolaX Power specializes in hybrid solar inverters and battery storage solutions for residential and commercial applications. Closely comparable to OPTI-Solar's hybrid inverter focus and BMS integration story.
• GoodWe: GoodWe designs and manufactures solar inverters and energy storage solutions for residential, commercial, and industrial markets. Comparable to OPTI-Solar in product line breadth and channel-based distribution.
• Phocos: Phocos manufactures off-grid solar charge controllers, inverters, and lighting systems for rural electrification. Comparable to OPTI-Solar in off-grid and emerging market focus.
• Ginlong (Solis): Solis (Ginlong Technologies) manufactures string inverters for residential, commercial, and utility-scale solar. Directly comparable to OPTI-Solar's string inverter product line and global distribution model.
• Voltronic Power: Voltronic Power is a Taiwanese power electronics manufacturer producing inverters, UPS, and solar inverters. Comparable to OPTI-Solar in Taiwan origin, product portfolio, and export strategy.
• Must Power: Must Power manufactures and exports solar inverters (off-grid, on-grid, hybrid) and energy storage systems globally. It is closely comparable to OPTI-Solar in product category, frequency range, and export-oriented GTM.
• Growatt: Growatt is a global inverter manufacturer offering residential, commercial, and utility-scale solar inverters and storage solutions. Comparable to OPTI-Solar in core product category and international distributor-led go-to-market model.

Broad incumbents

• Enphase Energy: Enphase is a global leader in microinverters and home energy systems. Operates in an adjacent solar inverter category with broader scale and stronger brand recognition than OPTI-Solar.
• SMA Solar Technology: SMA is a German global leader in solar inverters and energy management solutions. Comparable product category to OPTI-Solar but operates at much larger scale and broader portfolio.
• Victron Energy: Victron Energy manufactures inverters, chargers, and energy storage systems for off-grid and marine applications. Comparable to OPTI-Solar's off-grid and hybrid inverter product offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC
• Xx.com/OPTI_Solar
• Facebookfacebook.com/OPTI.UPS.Solar
• LinkedInlinkedin.com/company/opti-solar

Compliance17 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about OPTI-Solar