Lumin

What Lumin does

Lumin (legal entity Coulomb Inc., d/b/a Lumin) is a Charlottesville, Virginia-based residential energy management company founded in 2016 and acquired by ABB in January 2025. The company designs and sells the Lumin Smart Panel, a retrofit-ready device that installs alongside any existing breaker panel to provide circuit-level energy monitoring, intelligent load management, and battery-backed whole-home control. The platform pairs the hardware with the Lumin Energy App (iOS/Android) and firmware, and ships with native state-of-charge integrations for Tesla Powerwall (including Powerwall 3), Enphase, SolarEdge, EG4, and FranklinWH batteries. Two add-on modules extend the core: Panel Guard (UL 916-listed, early access Q1 2025) dynamically sheds loads to avoid costly service-panel upgrades when electrifying with EV chargers, heat pumps, and water heaters, and Off-Grid Manager extends battery runtime through user-configurable circuit prioritization during outages.

Lumin monetizes through hardware sales of the Smart Panel and related modules, plus an installed software platform enabling automation and energy insights; specific pricing is not publicly disclosed. Go-to-market combines a certified installer network across the U.S. and Canada with direct-to-consumer channels (website, mobile app, phone sales) targeting residential homeowners with solar-plus-storage systems, backup-power needs, and electrification plans. A second GTM motion targets electric utilities via Lumin Edge, a modular Hub-and-Controller residential load-control platform launched in pre-release with co-op and investor-owned utilities across Colorado, Florida, Idaho, North Carolina, and British Columbia in March 2024 for demand response and virtual power plant programs. Channel partnerships with Sunnova, Villara Energy Systems, SimpliPhi Power, Sonnen, and Storz Power extend distribution into the residential solar and storage installer base.

The company operates with 51-100 employees and is led by CEO Kelly Warner (appointed September 2022) and Founder/President Alexander Bazhinov. Strategic milestones include a September 2020 funding round of approximately $6.4M, an ABB strategic investment in December 2023, the January 2025 ABB acquisition, and industry recognition including the 2024 CEE Integrated Home Competition award for Lumin Edge and Solar Power World's 2020 Top Product designation. ABB's acquisition positions Lumin within a global industrial portfolio spanning smart-home and building-automation channels in North America and beyond.

Name

Lumin

Legal name

Coulomb Inc.

Website

https://luminsmart.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

Lumin (Coulomb Inc.) builds retrofit-ready smart electrical panels and a mobile app that provide circuit-level energy monitoring, battery-aware load management, and service-upgrade avoidance for U.S. and Canadian residential homeowners, solar installers, and electric utilities; acquired by ABB in January 2025.

Ownership category

akta.pro rank

Product category

Smart Electrical Panels

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Relay and Industrial Control Manufacturing (335314)

SIC

Switchgear & Switchboard Apparatus (3613), Electronic & Other Electrical Equipment (No Computer Equip) (3600), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Smart Electrical Panel, Energy Monitoring & Load Management (HSAOANAE)

akta.pro secondary industries

Advanced Metering Infrastructure (AMI) & Smart Metering (EUADAPAB), Utility & Grid Services Integration for EV Flexibility (DR/DERMS/SCADA Interfaces) (EUAFAMAF), Smart Energy Management (Meters, EV Chargers, Solar/Battery Monitors) Retail (CRACAGAI)

Keywords

• Smart electrical panels
• Residential energy management
• Load management systems
• Circuit-level monitoring
• Battery backup optimization

Headquarters

HQ city

Charlottesville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Smart Panel Hardware Sales: Lumin sells its Smart Panel hardware device that retrofit-fits existing electrical panels. The Lumin Smart Panel is a physical device that provides the core energy management functionality.
2. Lumin Energy App / Software Platform: The Lumin Energy App provides energy monitoring, automation, and optimization capabilities. The platform enables real-time insights, circuit scheduling, and automated load management.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Lumin designs and sells the Lumin Smart Panel, a retrofit-ready smart electrical panel that installs alongside any existing breaker panel to deliver circuit-level energy monitoring, intelligent load management, and battery state-of-charge-aware control. The system pairs proprietary panel hardware with the Lumin Energy App (iOS/Android) for real-time insights, scheduling, and automated load shedding, and extends to Panel Guard for service-upgrade avoidance and Lumin Edge for utility demand response and virtual power plant programs.

Product overview

Lumin offers a unified smart energy management platform centered on the Lumin Smart Panel, which transforms ordinary electrical circuits into intelligent, controllable loads. The core platform consists of the Lumin Smart Panel hardware and the Lumin Energy App for monitoring and control. Two key add-on modules extend the platform's capabilities: Panel Guard enables dynamic load management to avoid service upgrades when adding high-demand appliances, while Off Grid Manager (formerly Smart Power Mode) extends battery runtime during outages through intelligent circuit shedding. Lumin Edge represents a separate but related utility-focused product line offering modular load control for grid services. The platform is natively compatible with Tesla Powerwall, Enphase, SolarEdge, EG4, and FranklinWH batteries for state-of-charge-based response.

Differentiator

Problem solved

Functional benefit

Brands

• Panel Guard: Intelligent energy management technology that dynamically manages loads to stay within the home's electrical limits, eliminating the need for costly panel replacements or utility service upgrades when adding high-demand appliances.
• Lumin Edge
• Off-Grid Manager

Products and services

• Lumin Smart Panel Smart electrical panel hardware that retrofit-fits any existing breaker panel to provide circuit-level energy monitoring, automated load shedding, and battery state-of-charge-aware control. Enables whole-home backup during outages, extends battery runtime, integrates with Tesla Powerwall, Enphase, SolarEdge, EG4, and FranklinWH, and operates locally during grid/ISP outages. Sold through certified installers and direct channels in the U.S. and Canada for residential homeowners with solar and storage.
• Lumin Energy App Mobile and web application (iOS and Android) that provides homeowners and installers with real-time circuit-level energy monitoring, historical usage insights, scheduling, automations, and step-by-step commissioning for the Lumin Smart Panel. Supports local-first operation over Wi-Fi during grid and ISP outages.
• Panel Guard Early-access load management product that dynamically manages home electrical loads to stay within service capacity limits, allowing homeowners to add high-demand appliances such as EV chargers, water heaters, and heat pumps without costly panel replacements or service upgrades. UL 916 listed.
• Lumin Edge Modular residential load control platform for utilities providing intelligent load management, behind-the-meter analytics, and circuit-level responsiveness using a scalable Hub-and-Controller architecture with universal panel and appliance compatibility. Designed for utility demand response programs, virtual power plant participation, and grid services.

Quantifiable outcome

• Up to 48 million homeowners may need costly electrical upgrades to electrify
• +1 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature9 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• SunnovacoreStrategic or Co-development Partner · 30 January 2024Sunnova selected Lumin's Smart Electrical Panel to supercharge its solar and storage offering. The partnership enables Sunnova to offer intelligent load management as part of their home energy solutions, providing customers with extended battery backup and optimized energy usage.
• Villara Energy SystemscoreStrategic or Co-development Partner · 6 October 2021Villara Energy Systems teamed up with Lumin to provide high power battery backup with smart load management. The partnership combines Villara's energy systems with Lumin's intelligent load management platform for enhanced home backup solutions.
• SimpliPhi PowerminorStrategic or Co-development Partner · 30 September 2021SimpliPhi Power partnered with Lumin to launch an innovative customer app and advanced controls for distributed energy storage systems. The collaboration enhanced SimpliPhi's battery offerings with Lumin's energy management capabilities.
• Storz PowerminorStrategic or Co-development Partner · 20 October 2020Storz Power and Lumin announced a grid-responsive home battery system, combining Storz Power's energy storage technology with Lumin's intelligent load management for improved grid interaction.
• SonnenminorStrategic or Co-development Partner · 11 September 2019Lumin and Sonnen announced a collaboration to bring clean energy management and resiliency to homeowners, integrating Sonnen's battery technology with Lumin's load management platform.
• Tesla/PowerwallcoreTechnology or IntegrationLumin integrates with Tesla Powerwall (including Powerwall+, Powerwall 2, and Powerwall 3) to read and respond to battery state of charge. Lumin is the only energy management system that can monitor and respond to signals from Powerwall 3, enabling optimized load management and extended backup runtime.
• EnphasecoreTechnology or IntegrationLumin integrates with Enphase IQ Batteries for state of charge monitoring and intelligent load shedding. The integration enables homeowners to optimize their Enphase battery storage during grid outages.
• SolarEdgecoreTechnology or IntegrationLumin integrates with SolarEdge Home Batteries for state of charge monitoring and automated load management. Homeowners can configure Lumin to shed designated circuits when SolarEdge batteries deplete below selected thresholds.
• FranklinWHcoreTechnology or IntegrationLumin integrates with Franklin Whole Home (FranklinWH) batteries for state of charge monitoring and intelligent load management during grid outages.
• EG4coreTechnology or IntegrationLumin integrates with EG4 batteries for state of charge monitoring and automated circuit load shedding based on battery charge levels.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Span: Span.IO is the closest direct competitor, manufacturing a smart electrical panel (Span Panel) that provides circuit-level control, energy monitoring, and battery integration for residential homes. Same product category, same retrofit/whole-home backup positioning, and overlapping solar+storage customer base.
• Enphase Energy: Enphase's IQ System Controller and IQ Batteries provide integrated load management and energy storage orchestration. While primarily a battery/inverter vendor, Enphase is expanding into whole-home energy management with bidirectional EV chargers and grid services, overlapping with Lumin's Lumin Edge utility offerings.
• SolarEdge: SolarEdge Home Wave inverter and Home Battery integrate with Lumin today, but SolarEdge's Home Energy Management system increasingly includes circuit-level control features. The relationship is both partner and emerging competitor in residential energy orchestration.
• Generac: Generac's PWRcell system and Ecobee acquisition position it in connected home energy management including load control and backup power. Generac's large installed base of home standby generators overlaps with Lumin's resilience-focused use cases.
• Sonnen: Sonnen (now part of Shell) provides residential battery systems with whole-home backup and energy management. Partnered with Lumin but increasingly adds native load management capabilities that overlap with Lumin's Off Grid Manager feature.

Broad incumbents

• Schneider Electric: Schneider Electric offers the Square D smart load center and Wiser Energy monitor, leveraging its dominant position in residential electrical distribution. While not purely retrofit-first, it competes in the connected panel and energy management space with greater scale and brand recognition.
• Leviton: Leviton's Smart Load Center combines circuit-level monitoring with the company's leading wiring device portfolio. As an incumbent electrical manufacturer, Leviton competes on installed-base relationships with builders and electricians, overlapping with Lumin's installer-led distribution model.
• Tesla: Tesla Powerwall 3 and Tesla's growing electrical ecosystem (Wall Connector, Solar Roof, Powershare) increasingly compete with Lumin at the system level. Tesla could introduce native panel-level load management, threatening Lumin's exclusive Powerwall 3 SoC integration advantage.

Emerging players

• FranklinWH: Franklin Whole Home battery integrates with Lumin Smart Panel for state-of-charge-based load management. As an emerging residential battery player, FranklinWH competes indirectly in the home energy management stack and depends on Lumin for orchestration.
• Uplight: Uplight provides utility customer engagement and energy management software including device orchestration and demand response programs. Adjacent to Lumin Edge in serving utility demand response and VPP use cases, with overlapping buyer personas in utility program managers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/luminsmart
• YouTubeyoutube.com/luminsmart
• Facebookfacebook.com/luminsmartcircuits
• LinkedInlinkedin.com/company/11249694
• Instagraminstagram.com/luminsmart

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds2 records

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 Lumin