Green Energy
Green Energy (UK) Ltd, trading as 100Green, is a privately held UK supplier of 100% renewable electricity and green gas to residential and small business customers, sourcing from named small British generators under EKOenergy certification.
- Company typePrivate
- Founded2001
- HeadquartersWare, United Kingdom
- Headcount11–50
- GTM typeB2C
- OfferingServices
What Green Energy does
Green Energy (UK) Ltd, trading as 100Green, is a privately held UK renewable energy supplier founded in 2001 and headquartered in Ware, England. The company supplies 100% renewable electricity and 100% green gas to residential and small business customers across Great Britain, buying directly from named small British hydro, wind, and solar generators. Its product portfolio comprises the Sparkling fixed-rate and variable tariff line, the Tide time-of-use tariff family targeted at EV owners and households with solar or battery systems, and 100 Origin — the only EKOenergy eco-labelled tariff in the UK with 100% green gas that is neither offset nor blended. Customers acquire service through a direct-to-consumer channel: a self-serve website quote system, web chat, and a UK-based inbound phone team with an average ten-second wait time.
The company is regulated by Ofgem under a standard energy supply licence and holds a 4.6-star Trustpilot rating alongside Which? Eco Provider and Recommended Provider endorsements. Underlying technology consists of smart meters with In-Home Displays, a customer-facing online portal, and iOS/Android mobile apps for meter-read submission and usage tracking; no proprietary AI or ML capability is evidenced. Revenue is generated through recurring subscription-based billing tied to consumption, with fixed and variable tariff structures, no exit fees on most tariffs, and direct-debit discounts. The GTM motion is exclusively UK-domestic, sold direct to consumer, with a complementary commercial supply proposition for businesses, construction firms, and property developers.
Green Energy firmographics
Firmographics- Name
- Green Energy
- Legal name
- Green Energy (UK) Ltd
- Website
- https://greenenergyuk.com
- Company type
- Private
- Founded year
- 2001
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Green Energy (UK) Ltd, trading as 100Green, is a privately held UK supplier of 100% renewable electricity and green gas to residential and small business customers, sourcing from named small British generators under EKOenergy certification.
- Ownership category
- akta.pro rank
Green Energy industry classification
Industry- Product category
- Renewable Energy Supply
- NAICS
- Electric Power Generation, Transmission and Distribution (2211), Utilities (22)
- SIC
- Electric Services (4911), Electric, Gas & Sanitary Services (4900)
- akta.pro primary industry
- Green/Carbon-Neutral Retail Supply (RECs/GoOs Bundled) (EUAGABAE)
Keywords
Where Green Energy is headquartered
LocationHeadquarters
- HQ city
- Ware
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Green Energy business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Operations, Supply Chain, Personnel, Infrastructure, Marketing or Sales, Others
Revenue model
- Energy Supply - Electricity and Gas: Recurring subscription-based revenue from supplying renewable electricity and 100% green gas to residential and business customers. Customers pay variable or fixed rates based on consumption, billed monthly in arrears with direct debit, prepayment, or cheque payment options.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Sparkling Guarantee - Fixed rates for 12 months with price certainty and no exit fees |
| Subscription | Monthly | Sparkling Variable - Variable rates that move with wholesale costs |
| Subscription | Annual | Tide EV - Best for electric vehicle owners with 5hrs low-cost night charging |
| Subscription | Monthly | Tide Lifestyle - Best for daytime living with 2hrs FREE energy every Sunday |
| Subscription | Monthly | Tide Smart - Best for smart solar and battery tech with 7hrs low-cost night charging |
| Subscription | Monthly | 100 Origin - UK's only eco-labelled energy tariff with EKOenergy certification |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Green Energy product offering
Product offeringCore offering
Green Energy (UK) Ltd, trading as 100Green, supplies 100% renewable electricity and 100% green gas to UK residential and commercial customers. The company offers a portfolio of fixed, variable, and time-of-use electricity and gas tariffs (Sparkling, Tide, 100 Origin) sourced from identifiable small British hydro, wind, and solar generators, with free Smart Meter installation, an online customer portal, and UK-based customer support.
Product overview
100Green operates as a unified renewable energy platform offering both domestic and commercial green energy supply. The core product portfolio consists of fixed and variable electricity and gas tariffs (Sparkling Guarantee, Sparkling Variable) combined with time-of-use tariffs (Tide EV, Tide Lifestyle, Tide Smart) designed for EV owners and customers with smart home technology. The flagship product is 100 Origin, the UK's only eco-labelled energy tariff verified by EKOenergy. The company differentiates through its 100% green gas offering (not offset or blended), free Smart Meter installation with mobile app access, and home generation export tariffs. Services extend to business commercial supply, prepayment options, and Priority Services Register support for vulnerable customers.
Differentiator
Problem solved
Functional benefit
Brands
- Sparkling Tariff: Fixed and variable green energy tariff options including Sparkling Guarantee and Sparkling Variable.
- Tide Tariff
- 100 Origin
Products and services
- Sparkling Guarantee
- Sparkling Variable
- Tide EV
- Tide Lifestyle
- Tide Smart
- 100 Origin
- Green Gas
- Home Generation Export Tariff
- Commercial Supply
Quantifiable outcome
- Customers benefit from lower energy rates when paying by direct debit
- +1 more outcomes
Companies that use Green Energy
Customer profileNamed customers1 record
Segments2 records
Ideal customer profiles2 records
Green Energy technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Green Energy partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and minor.
- GREEN ENERGY (Japan subsidiary)coreGREEN ENERGY is the Japanese subsidiary/local partner for Recharge Power's 20 MW / 80 MWh battery energy storage project in Japan, executed in partnership with Recharge Power's Japanese subsidiary REENS. Equipment deliveries scheduled to begin July 2026.
- Flix North AmericaminorFlix North America partnered with Green Energy to install roof-mounted solar panels on intercity buses operating in the United States as part of a pilot program to enhance sustainability and reduce emissions.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Green Energy competitors and assessment
Company assessmentDirect peers
- So Energy: UK independent energy supplier offering renewable electricity and gas tariffs to households and small businesses. Comparable small-scale independent retailer competing for the same switch-driven residential customer base.
- Octopus Energy: UK-based renewable energy retail supplier offering 100% renewable electricity and green gas tariffs to residential and business customers. Most directly comparable competitor to 100Green in green-tariff positioning, although at vastly greater scale and with broader international operations.
- Good Energy: UK renewable electricity retailer sourcing from independent British generators, serving residential and business customers. Closely comparable niche green supplier with similar small-scale, generator-traceability positioning to 100Green.
- Ecotricity: Long-established UK green energy supplier offering renewable electricity and green gas to domestic and commercial customers. Direct competitor in the green-retail niche with overlapping eco-credentials messaging.
Broad incumbents
- OVO Energy: Large UK energy supplier serving millions of residential customers with renewable tariffs as part of a broader portfolio. Comparable in green retail offering but operates at far greater scale and product breadth than 100Green.
- E.ON Next: UK retail energy supplier of E.ON offering renewable and standard tariffs to millions of households. Overlaps with 100Green on renewable residential supply but as a broad incumbent rather than a green-niche specialist.
- British Gas: Largest UK energy supplier offering green tariffs as part of a broad portfolio to residential and business customers. Competes for the same switch-driven market but with national brand scale that 100Green cannot replicate.
- EDF Energy: Major UK energy supplier including significant renewable generation assets, serving residential and business customers. Competes for the same eco-conscious customer segments but with vastly greater scale and vertical integration.
- Shell Energy Retail: UK retail energy arm of Shell offering renewable electricity and gas tariffs to residential customers. Comparable in product category but a broad incumbent with parent-backed capital and risk capacity that 100Green cannot match.
Others
- EKOenergy: International non-profit that issues eco-labels for renewable energy, certifying 100Green's 100 Origin tariff. Indirectly comparable as a standards-setter whose certification underpins 100Green's premium green-gas positioning; not a competitor but a critical ecosystem partner.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Green Energy social profiles
Digital presenceGreen Energy financial estimates
Financial estimateRevenue estimate
Valuation estimate
Green Energy leadership team
Management profileNumber of profiles
Profiles1 record
Green Energy funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Green Energy M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Green Energy
What does Green Energy do?
Green Energy (UK) Ltd, trading as 100Green, supplies 100% renewable electricity and 100% green gas to UK residential and commercial customers. The company offers a portfolio of fixed, variable, and time-of-use electricity and gas tariffs (Sparkling, Tide, 100 Origin) sourced from identifiable small British hydro, wind, and solar generators, with free Smart Meter installation, an online customer portal, and UK-based customer support.
Is Green Energy a public or private company?
Green Energy is a private company. It is classified as unknown and is currently operating.
When was Green Energy founded?
Green Energy was founded in 2001. It employs 11 to 50 people.
Where is Green Energy based?
Green Energy is headquartered in Ware, United Kingdom, in the Europe region.
How does Green Energy make money?
One revenue line is on record: energy Supply - Electricity and Gas.
Who are Green Energy's main competitors?
Direct peers on record are So Energy, Octopus Energy, Good Energy and Ecotricity. Broad incumbents are OVO Energy, E.ON Next, British Gas, EDF Energy and Shell Energy Retail. EKOenergy is listed as an others.
Does Green Energy have an API?
No public API is recorded for Green Energy.
What industry is Green Energy in?
Green Energy's product category is Renewable Energy Supply. Its primary akta.pro industry code is EUAGABAE, Green/Carbon-Neutral Retail Supply (RECs/GoOs Bundled). Its NAICS code is 2211 and its SIC code is 4911.