Green Energy Options

What Green Energy Options does

Green Energy Options (trading as geo) is a UK-based smart energy platform company founded in 2006 and headquartered in Cambridge. It designs and manufactures in-home energy hardware, software, and cloud services that turn smart meter data into actionable insight for energy retailers, consumers, social housing providers, financial services firms, and international energy operators. The company's product portfolio spans legacy In-Home Displays (IHDs), of which more than 7.5 million have been supplied for the GB smart meter rollout, and the current-generation SeeZero Home Energy Management System (HEMS) with Matter certification, supported by connectivity modules HAN-E (Zigbee range extender) and Virtual WAN, and a SeeZero Smart Thermostat.

The technology stack combines SMETS1/SMETS2 smart meter compatibility with Matter, OpenADR, Zigbee, Thread, and Wi-Fi connectivity, plus ONZO's energy disaggregation analytics acquired in 2021. SeeZero delivers real-time energy visualisation, Time of Use and dynamic tariff support, demand flexibility services, EV charging coordination, and peer-to-peer consumption comparisons. The OpenADR + Matter bridging specification released in 2025 positions geo as an orchestration layer between grid operators and household devices.

geo operates a B2B2C model in which energy retailers deploy SeeZero and IHDs to consumer homes at no direct cost as part of smart meter infrastructure investment. Revenue is generated through hardware sales to retailers, subscription-based platform licensing, recurring disaggregation and analytics services, and emerging flexibility services revenues. The company has raised approximately $7.8M across disclosed funding rounds since 2008, is led by CEO Chris Shannon (appointed April 2025), and is privately held with no parent company.

Name

Green Energy Options

Legal name

Green Energy Options Ltd.

Website

https://geotogether.com

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

51–100 employees

Short description

Green Energy Options (geo) is a UK-based smart energy platform company that designs SeeZero HEMS hardware and disaggregation analytics, deploying connected energy management solutions through energy retailers, financial services, social housing, and international energy providers.

Ownership category

akta.pro rank

Product category

Smart Energy Management

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

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

akta.pro primary industry

Home Energy & EV Charging (HEMS, Smart Meters, Batteries, Chargers) (HSAPAQAF)

akta.pro secondary industries

Customer Energy Engagement (In-Home Displays, Portals, Usage Insights) (EUADAFAH), EV Charging Infrastructure IoT & Smart Charging (V1G/V2G) (EUADAPAH), Utility & Grid Services Integration for EV Flexibility (DR/DERMS/SCADA Interfaces) (EUAFAMAF)

Keywords

• Smart energy management
• Home energy displays
• Energy data analytics
• Smart meter solutions
• Demand flexibility services

Headquarters

HQ city

Cambridge

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales (IHDs and SeeZero): Sale of smart energy devices including In-Home Displays (IHDs) and SeeZero home energy management systems to energy retailers and directly to consumers. SeeZero can be deployed by energy suppliers as part of the smart meter rollout.
2. Platform Licensing: Pathways to recurring revenues through platform licensing, allowing third parties to access geo's smart energy management capabilities and infrastructure.
3. Data and Analytics Services: Insights services providing disaggregation data, peer-to-peer comparisons, and energy efficiency guidance to energy retailers, financial services providers, and other customers.
4. Flexibility Services: Recurring revenue streams from enabling demand flexibility services for energy retailers, helping them engage customers with Time of Use and dynamic tariffs.
5. Disaggregation Services: Services providing energy breakdown, personalized tips, heat pump assessment, and suitability evaluations, deployed across millions of homes in Europe for energy providers.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Green Energy Options (geo) designs and manufactures in-home energy displays, the SeeZero Home Energy Management System (HEMS), smart thermostats, and accompanying connectivity hardware (HAN-E, Virtual WAN), plus cloud-based energy data analytics and demand flexibility services. Products are sold primarily to energy retailers, financial services providers, social housing organizations, and international energy providers, with end-consumer deployment via the GB smart meter rollout.

Product overview

geo (Green Energy Options) operates as a vertically integrated smart energy platform built around three core pillars: Connectivity, Flexibility, and Engagement. The core product SeeZero is a Home Energy Management System (HEMS) that integrates directly with smart meters and uses Matter to communicate with household appliances for optimized energy use. This platform is supported by connectivity add-ons including HAN-E (Zigbee range extender) and Virtual WAN (broadband-based smart meter connectivity), plus a smart thermostat for heating control. geo acquired ONZO in 2021 to add energy disaggregation capabilities, enabling detailed breakdowns of energy consumption by appliance category. The portfolio includes both current-generation products (SeeZero, smart thermostat) and legacy IHD devices (7.5+ million deployed), with all solutions designed for mass-market deployment as part of the GB smart meter rollout.

Differentiator

Problem solved

Functional benefit

Brands

• SeeZero: Revolutionary home energy management system (HEMS) with Matter certification, providing real-time smart meter data visualization, energy insights, and smart home connectivity for energy retailers and consumers.
• HAN-E (HAN Extender)
• Virtual WAN (VWAN)

Products and services

• SeeZero Home Energy Management System A Home Energy Management System (HEMS) that integrates directly with a home's smart meters via Wi-Fi and HAN and uses Matter to communicate with other appliances for optimized energy use. Delivers real-time energy insights, tariff visualization, and demand flexibility services for energy retailers and their customers. Achieved Matter certification for interoperability.
• HAN-E (HAN Extender) A connectivity add-on module that extends Zigbee Home Area Network (HAN) coverage in large homes, thick-walled properties, and multi-dwelling buildings where gas meters or IHDs are often out of range. Uses Zigbee mesh technology for stable, secure in-home connections.
• Virtual WAN (VWAN) A connectivity add-on module that enables smart meter connectivity in homes that would not otherwise be accessible by leveraging the home broadband connection when mobile coverage is unavailable or unreliable, particularly in rural locations and high-rise buildings.
• SeeZero Smart Thermostat A smart thermostat integrated with the SeeZero HEMS that delivers a rich source of data and a simple, cost-effective way to reduce heating bills. Features up/down heating control, scheduling, and boost functionality, and links to smart meter data for optimized heating efficiency.
• ONZO Data Disaggregation Service A subscription-based data analytics service that breaks down household energy consumption into categories (heating, washing, refrigeration, hot water, entertainment, cooking, EV charging, miscellaneous), provides peer-to-peer comparison, personalised energy efficiency tips, and heat pump assessment and suitability evaluation. Deployed across millions of homes in the UK, Spain, Nordics, Netherlands, and Italy.
• Demand Flexibility Services A platform offering that stimulates consumer response and participation in flex events, helping energy retailers engage customers with Time of Use and dynamic tariffs, and enabling demand-side response through the OpenADR and Matter bridging specification.
• In-Home Display (IHD) Energy display units that talk to smart meters and give consumers information about their energy use. The company has provided more than 7.5 million IHDs as part of the GB smart meter rollout, compatible with both SMETS1 and SMETS2 standards.
• Smart Plugs Smart plugs that enable non-smart appliances to integrate with the SeeZero HEMS, allowing automatic optimization of device operation for cost and carbon savings. Priced at approximately £12-14 each.

Quantifiable outcome

• 20% reduction in household energy bills (approximately £400-600 annually)
• +9 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

AI capability3 records

Feature8 records

Partnerships

Nine partnerships are on record, tiered core, flagship and minor.

• NXP SemiconductorscoreTechnology or Integration · 11 December 2024Strategic collaboration for Matter-Enabled Smart Energy Management for the Autonomous Home. geo showcased SeeZero in the NXP booth at CES Las Vegas 2025. The partnership combines NXP's semiconductor expertise with geo's SeeZero HEMS platform for next-generation smart home energy management solutions.
• Connected KerbflagshipStrategic or Co-development Partner · 17 May 2024Announced world's first Matter-enabled EV charging solution. The collaboration enables EV owners to manage vehicle charging seamlessly within their smart home experience, working across leading smart home platforms and household brands. SeeZero supports Matter-based EV charging control.
• ONZOcoreTechnology or Integration · 1 January 2021Acquisition of ONZO, the UK's leading data disaggregation specialist, accelerating delivery of geo's home optimisation vision. ONZO's disaggregation technology integrated into geo's platform for enhanced energy insights.
• First UtilitycoreChannel Partner/ Reseller/ Distributor · 1 January 2014Connected Heating trial and contract awarded in 2014.
• Fortum (Sweden)coreChannel Partner/ Reseller/ Distributor · 1 January 2011First international contract in 2011 with Fortum in Sweden, marking geo's entry into international markets.
• Scottish PowercoreChannel Partner/ Reseller/ Distributor · 1 January 2010Major trial and connected services contract signed in 2010.
• British GasflagshipChannel Partner/ Reseller/ Distributor · 1 January 2008First major contract awarded in 2008. British Gas subsequently awarded first smart meter IHD contract to geo in 2013. Long-standing relationship as primary B2B customer.
• Schneider ElectriccoreStrategic or Co-development PartnerPartnership announced for energy management solutions collaboration. Schneider Electric is a global specialist in energy management and automation.
• VaillantminorStrategic or Co-development PartnerCollaborative white paper on DSR flexibility for domestic heat pumps. Joint technical paper making the case for Energy Smart appliances to work with Home Energy Management Systems (HEMS) using Matter standard.

Scale indicators10 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• Eliq: Swedish energy data platform that provides disaggregation, customer engagement apps and energy insights to utilities across Europe. Already a geo technology partner, and a direct comparable in the data/insights layer that sits alongside HEMS hardware.
• Tado°: Munich-based smart thermostat and HEMS company focused on heating optimization, smart tariff integration and EV charging in European homes. Direct competitor to geo's SeeZero smart thermostat and HEMS offerings.
• Tibber: Norwegian digital energy retailer that combines dynamic tariff management with a HEMS-style app and home energy device integrations. Highly comparable to geo in its focus on time-of-use optimization, EV charging control and consumer energy insights across European markets.
• Smappee: Belgian smart energy management company selling HEMS hardware and cloud services that disaggregate appliance-level consumption and enable solar, battery and EV charging optimization. Directly comparable to geo's SeeZero + ONZO disaggregation proposition, with similar European enterprise and prosumer channels.
• Hildebrand Technology: UK-based provider of in-home displays, smart meters and energy data services to UK energy retailers, with deep GB smart-meter rollout experience. Closest direct UK competitor to geo's IHD/HEMS business.

Broad incumbents

• Honeywell: US-listed conglomerate with a substantial smart thermostat and building energy management portfolio (including the Resideo spin-off). Comparable to geo on the residential thermostat/HEMS axis but operates as a much larger, diversified incumbent.
• Schneider Electric (Wiser): Global energy management and automation incumbent whose Wiser smart home energy platform overlaps with SeeZero. A geo strategic partner, but also a potential competitor with vastly broader product, channel and R&D scale.
• Octopus Energy: Vertically integrated UK energy retailer with its own smart tariff, HEMS-style app ('Octopus Home') and energy data propositions. Represents both a customer channel and a competitive threat for geo's retailer-targeted HEMS.

Emerging players

• Enode: Norwegian energy API platform unifying EV chargers, solar inverters, batteries and HEMS for utility and EV apps. Overlaps with geo's energy-data interoperability and EV charging integration thesis via Connected Kerb and Matter/OpenADR.
• Netatmo (Legrand): French consumer smart home brand (Legrand subsidiary) offering smart thermostats and energy monitoring products with Matter compatibility. Comparable as a consumer-focused HEMS-adjacent player, though smaller-scale and less utility-oriented than geo.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/green-energy-options
• Xx.com/GEOmonitors
• Facebookfacebook.com/GEO.GreenEnergyOptions

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries1 record

Funding overview

Funding rounds4 records

Investors4 records

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

M&A1 record

Investments

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

Frequently asked questions about Green Energy Options