Billion Watts

What Billion Watts does

Billion Watts Technologies Co., Ltd. (盛齊綠能) is a Taiwan-headquartered solar PV and energy storage system integrator founded in 2017 and operating as a subsidiary of Billion Electric Group (TSE: 3027). The company designs, deploys, and operates distributed and utility-scale energy assets for commercial and industrial customers, Taiwan's regulated heavy electricity users (用電大戶), and utility operators across Taiwan, Australia, and Japan, with operating subsidiaries Billion Watts Australia Pty Ltd and Billion Electric Japan Co., Ltd.

The company's technology stack centers on its proprietary Fusio One II energy storage product, the Pixel View 5.0 monitoring and analytics platform, an in-house energy management system (EMS), and the BEVC 480K EV charger. It also distributes third-party PV inverters from SolarEdge and APsystems. Operationally, Billion Watts reports 2,000+ solar plants served, 532MW+ of inverter installation experience, 626MW of monitoring capacity, and 308MW/817MWh of energy storage under O&M representing NT$15.8 billion (approximately US$501 million) of managed assets, including Taiwan's largest central-region transmission-grade E-dReg installation (64MW/262MWh) in Yunlin.

The business model combines one-time hardware revenue (ESS, inverters, EV chargers) with recurring revenue from O&M service contracts, Pixel View monitoring subscriptions, and energy management services for grid ancillary programs such as E-dReg. Key commercial partners include SolarEdge, CATL (via Tun Green Power), TECO Australia & New Zealand, APsystems, Chunghwa Telecom, and Noodoe, supporting a turnkey delivery model across multiple APAC markets.

Name

Billion Watts

Legal name

Billion Watts Technologies Co., Ltd. (盛齊綠能股份有限公司)

Website

https://billionwatts.com.tw

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

51–100 employees

Short description

Billion Watts is a Taiwan-based solar PV and energy storage system integrator serving C&I customers, regulated heavy electricity users, and utilities across Taiwan, Australia, and Japan, with proprietary Fusio ESS, Pixel View monitoring, EMS, and EV charging products.

Ownership category

akta.pro rank

Product category

Solar PV and Energy Storage System Integration

NAICS

Battery Manufacturing (335910)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Energy Storage Software & Controls (EMS, monitoring, optimization, cybersecurity) (IMAGAHAJ)

akta.pro secondary industries

Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), Battery Management Systems (BMS) & Battery Electronics (IMAGAHAC), Battery Management Systems (BMS) & Pack Electronics Manufacturing (EUAFABAJ), Battery Management Systems (BMS) & Safety Controls (EUAFAAAD), EV/Industrial Charging Power Electronics (Chargers, rectifiers, power stages) (IMAGADAF), Renewable Power Electronics & Advanced Inverters R&D (SiC/GaN, Grid-Forming, HVDC Converter Tech) (EUAMAOAF)

Keywords

• Energy storage systems
• Solar PV integration
• PV inverters
• EV charging solutions
• Power plant monitoring

Headquarters

HQ city

Taipei

HQ country

Taiwan

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Energy Storage System (ESS) Sales: EPC and direct sales of MIT-made battery energy storage systems including Fusio series cabinets, PCS, BMS, and container solutions. Revenue from system integration, installation, and commissioning services.
2. O&M Services: Long-term operations and maintenance contracts for solar PV and ESS assets. Includes corrective and preventive maintenance, remote monitoring, and performance optimization services.
3. PV Inverter Distribution: Channel sales of SolarEdge, APsystems, and proprietary Billion PV inverters through authorized distributor network. Includes power optimizers and monitoring accessories.
4. EV Charging Solutions: Sales of AC (BH-2000) and DC (BEVC 120-240K, BEVC 480K) EV chargers with EV-EMS energy management system integration.
5. Monitoring System Services: Pixel View cloud monitoring platform providing solar PV monitoring, AI diagnostics, and SCADA services for power plant operators.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels5 records

Core offering

Billion Watts designs, manufactures, and integrates MIT-made (Taiwan-manufactured) battery energy storage systems (Fusio series cabinets and containers), PV inverters (Giga series plus distributed SolarEdge and APsystems brands), and EV chargers (BH-2000 AC, BEVC 120-480kW DC). The company also operates the Pixel View AI-powered solar monitoring platform and delivers long-term operations and maintenance (O&M) services across Taiwan with expansion into Australia and Japan.

Product overview

Billion Watts (盛齊綠能) is a subsidiary of Billion Electric Group (TSE: 3027) providing comprehensive solar PV and energy storage solutions in Taiwan. The product portfolio centers on MIT-made energy storage systems including Fusio Nex (125kW/261kWh), Fusio One (100kW/215kWh), and large-scale container solutions (3.44MWh, 5MWh), complemented by the Pixel View AI monitoring platform for solar PV and ESS monitoring with SCADA integration. The company resells SolarEdge inverters and optimizers, distributes APsystems microinverters, and offers its own Giga Series PV inverters. EV charging solutions include BH-2000 AC charger (7kW) and BEVC DC chargers (120-480kW) with proprietary EV-EMS management. Key differentiators include AI-powered health diagnostics and fault prediction, UHV SCADA monitoring for 69kV/161kV substations, and integrated energy management systems supporting multiple revenue models including FCAS, demand response, and energy arbitrage.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 2.04% increase in power generation (SolarEdge)
• +2 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability5 records

Feature5 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• TECO Australia & New Zealand (TAC)coreStrategic or Co-development Partner · 22 June 2026TAC (TECO Electric & Machinery's Australia subsidiary) holds 45% stake in the Seaspray Solar + BESS project (5.48MWp/11MWh) in Victoria, Australia. TAC will serve as EPC contractor and supply power infrastructure including transformers, RMUs and switchgear for Tranche 2 (50MW/200MWh) portfolio. Strategic partnership for Australian renewable energy market expansion.
• Tun Green PowercoreStrategic or Co-development Partner · 22 June 2026Co-investor in Seaspray project and Tranche 2 portfolio. Primary battery supplier deploying CATL Tier-1 battery technology for long-duration energy storage. Authorized CATL after-sales service center with comprehensive system integration capabilities.
• Legacy EnergyminorImplementation/ SI/ Consulting Partner · 9 June 2026EPC contractor partner for Anakie solar-plus-storage project in Victoria, Australia. Collaborated on community engagement activities including school visits to the project site.
• EnervestminorStrategic or Co-development Partner · 6 March 2026Partnership on 50MW solar+BESS expansion in Australia through local development partner, leveraging sub-5MW projects and diversified strategy.
• Chunghwa TelecomminorStrategic or Co-development Partner · 19 June 2025Turnkey PoC project for integrated solar-storage-charging system at Chunghwa Telecom Institute in Kaohsiung. System includes 103.24 kWp solar, 100kW/215kWh storage, and EV chargers.
• SolarEdgecoreChannel Partner/ Reseller/ DistributorAuthorized distributor of SolarEdge PV inverters and power optimizers in Taiwan. Products feature Safe DC technology for fire safety and 20-year warranty. Major revenue stream for distributed solar PV products.
• APsystemsminorChannel Partner/ Reseller/ DistributorAuthorized distributor of APsystems DS3D PV microinverters (1900W) in Taiwan for residential and commercial solar installations.
• NoodoeminorStrategic or Co-development PartnerPartnership on 光充儲 integrated demonstration site in Yilan combining solar, storage and EV charging. Noodoe provides EV charging management platform (EVOS) with AI automation.
• CATL (寧德時代)coreTechnology or IntegrationBattery technology supplier via Tun Green Power partnership. CATL supplies Tier-1 battery cells for energy storage systems deployed through the partnership network.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Sungrow Power Supply: Sungrow is one of the world's largest PV inverter and energy storage system manufacturers. Billion Watts competes directly with Sungrow's PV inverters (against Giga Series) and ESS offerings (against Fusio) across global markets.
• Enphase Energy: Enphase is a leading microinverter and home energy storage provider. Billion Watts distributes APsystems microinverters, positioning it as a competitive alternative to Enphase in residential and small commercial PV.
• Fluence Energy: Fluence is a leading global provider of battery energy storage systems and AI-driven software, directly competing with Billion Watts' Fusio BESS line and Pixel View EMS. Both deliver utility-scale and C&I storage solutions with proprietary software stacks.
• SMA Solar Technology: SMA is a leading German manufacturer of PV inverters and battery inverter systems with global reach. They compete with Billion Watts in C&I and utility-scale solar+storage integration markets.
• Huawei Digital Power: Huawei's Digital Power business provides smart PV inverters, BESS, and EV charging solutions with integrated energy management. Billion Watts competes across all three product categories with similar integrated offerings.
• Delta Electronics: Delta Electronics is a Taiwan-based power and thermal management solutions provider with significant ESS and PV inverter businesses. They compete with Billion Watts in Taiwan and global markets for similar integrated energy solutions.

Broad incumbents

• Wartsila Energy Storage: Wartsila is a major incumbent in grid-scale energy storage and optimization software, competing with Billion Watts in the utility/front-of-meter BESS segment with mature technology and global presence.
• Tesla Energy (Megapack): Tesla's Megapack and Powerwall products compete with Billion Watts' Fusio series in the global utility-scale and residential BESS markets, representing large-scale competition in storage integration.
• SolarEdge Technologies: SolarEdge is a global leader in DC-optimized PV inverter technology and a key distribution partner for Billion Watts. They represent both an indirect competitor and a key supplier relationship.

Emerging players

• NHOA (formerly Engie EPS): NHOA provides energy storage and e-mobility solutions globally, with overlap in C&I BESS and EV charging infrastructure similar to Billion Watts' integrated offerings.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCbBPaSPqnG6SN23eQYMZheQ
• Facebookfacebook.com/billionwattsglobal
• LinkedInlinkedin.com/company/billion-watts-technologies

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 records

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 Billion Watts