Octopus Energy and E.ON Next are two of the UK's most-compared business energy suppliers, but they've arrived at their current position from very different starting points. Octopus built its reputation as an independent challenger with time-of-use pricing, half-hourly data and a jargon-light digital account, while E.ON Next is the SME arm of one of the 'Big Six', now running on the same Kraken billing platform as Octopus after a technology licensing deal, with larger accounts served separately through npower Business Solutions.
This business energy comparison looks at tariffs, contract length, pricing structure, renewable credentials, customer service, smart tech and fees, so you can weigh up Octopus vs E.ON Next.
Octopus vs E.ON Next at a Glance
Feature | Octopus Energy | E.ON Next |
|---|---|---|
Business Size Focus | Sole traders to large corporates | Micro-businesses to SMEs (larger accounts via npower Business Solutions) |
Gas Supply | Yes | Yes |
Electricity Supply | Yes | Yes |
Zero Carbon/Renewable Electricity | Yes, 100% carbon-free as standard | Yes, REGO-backed renewable available as standard |
Smart Meter Support | Yes | Yes, SMETS2 required for time-of-use tariffs |
Time-of-Use/Half-Hourly Tariffs | Extensive | Limited |
EV Charging Solutions | Extensive | Yes, via E.ON Drive |
Net Zero Support | Strong | Good |
Fixed Tariffs | Yes, up to 3 years | Yes, up to 2 years for standard SME product |
Flexible Purchasing | Limited | Limited for SMEs, available via npower Business Solutions for larger users |
Multi-Site Management | Yes | Yes, up to around 50 meters via the standard portal |
Online Account Management | Yes | Yes, E.ON Next portal |
Which Supplier Offers Better Business Energy Tariffs?
Neither Octopus nor E.ON Next publishes a single standard business rate, because pricing depends on:
Business location
Annual consumption
Industry type
Meter type
Contract length
Credit profile
Regional distribution charges
It's worth noting that the two suppliers structure their tariff ranges quite differently. Octopus has built a wider set of time-of-use and export tariffs around its smart meter data, while E.ON Next leans on a simpler standard fixed product for most SMEs, with time-of-use and EV-specific tariffs available alongside it.
Octopus Tariffs
Fixed Contracts
Rates are locked in for the length of the agreement, with no hidden fees added to the unit rate or standing charge.
Best for:
Budget certainty
Small offices, shops and sole traders
Businesses that want a simple, all-in quote
Shape Shifters: Trio and Agile
Half-hourly, time-of-use tariffs that reward businesses for shifting consumption away from the 4 pm to 7 pm peak. Agile Business follows day-ahead wholesale prices directly, updated at 4 pm the day before for the next 24 hours, while Trio splits the day into three simpler bands.
Best for:
Businesses with EV charging, batteries or solar on-site
Manufacturers with flexible plant or shift patterns
Sites that can move refrigeration, HVAC or back-office loads outside peak hours
No Standing Charge Tariff
Available to some businesses, with the daily standing charge reduced to zero and that fixed cost built into the unit rate instead, which can suit low-usage sites.
Multi-Site and Export Tariffs
Multi-site portfolios can be managed under one account for switching, renewals and billing. Businesses with solar or battery storage can also access Panel Power and Shape Shifters: Export, which pays for electricity sent back to the grid at rates that change every half-hour in line with wholesale costs.
E.ON Next Tariffs
E.ON Next Business Fixed
The standard SME product, on a 12 or 24-month fixed contract, with a smart meter required and the account set up and managed entirely online through the E.ON Next portal. The per-kWh rate and standing charge are both locked for the term, and this is what over 70% of E.ON Next business customers are on.
Best for:
Budget certainty over a short-to-medium term
SMEs that want a single, predictable quote
Businesses happy to manage their account online
Next Smart Saver Business
A smart time-of-use tariff aimed at SMEs that can shift load, with a cheaper unit rate at off-peak periods (typically 9 pm to 7 am and weekends) and a more expensive rate at the 4 pm to 7 pm evening peak. Net saving for shiftable loads is usually 0.8 to 2p/kWh on the all-in rate, and the tariff needs an SMETS2 meter in half-hourly-enabled mode.
Best for:
Businesses that can move usage away from the evening peak
Sites with SMETS2 smart meters already installed
E.ON Drive for Business
For businesses installing EV chargers on-site, whether at a depot, car park or customer-facing location, E.ON Drive bundles charger hardware, installation, back-office management and the energy supply, with public-charging-network access also available. SMEs may also be eligible for a government EV infrastructure grant of up to £15,000 towards charger installation and supporting parking infrastructure.
npower Business Solutions
For Mid-Market and Large I&C corporates, typically businesses using 500,000 kWh or more a year, accounts sit with npower Business Solutions, the dedicated B2B brand within the E.ON Group, on its own platform with named account managers and flexible procurement capability.
Tariff Comparison Table
Tariff Type | Octopus Energy | E.ON Next |
|---|---|---|
Fixed Rate | Yes, up to 3 years | Yes, up to 2 years (standard SME product) |
Variable/Flexible Rate | Limited | Yes, Next Flex |
Time-of-Use Tariffs | Extensive | Yes, Next Smart Saver Business |
Renewable Tariffs | Yes, 100% carbon-free as standard | Yes, REGO-backed |
Solar and Battery Export Tariffs | Yes | Limited |
EV-Specific Tariffs | Yes | Yes, E.ON Drive |
Multi-Site Contracts | Yes | Yes |
No Standing Charge Option | Yes, on qualifying meters | No |
Half-Hourly Meter Tariffs | Yes | Yes |
Winner: Octopus, for businesses that can shift load and want to be paid for solar or battery export. E.ON Next remains a strong option for businesses that want a simpler standard fixed product or a dedicated EV charging infrastructure package.
How Do Contract Lengths Compare?
Octopus Contract Terms
Contract Type | Typical Length |
|---|---|
Fixed Contracts | 1 to 3 years |
Shape Shifters/Agile | Rolling, tied to smart meter data |
Renewable Export Tariffs | Varies by product |
E.ON Next Contract Terms
Contract Type | Typical Length |
|---|---|
E.ON Next Business Fixed | 12 or 24 months |
Next Smart Saver Business | Fixed term, varies by product |
npower Business Solutions (500,000 kWh+) | Bespoke, tied to flexible procurement |
Contract Length Scorecard
Factor | Octopus Energy | E.ON Next |
|---|---|---|
Short-Term Flexibility | Good | Good |
Long-Term Fixed Procurement | Good, fixed terms up to 3 years | Limited for SMEs, capped at 24 months |
Large-Business Flexible Purchasing | Limited | Good, via npower Business Solutions |
Octopus vs E.ON Next Pricing Structure
Business energy quotes typically include:
Unit Rate
Price charged for each kWh consumed. Indicative Q1 2026 quotes for Octopus show standard fixed-contract pricing typically between 24 and 28p/kWh for electricity and 6 to 9p/kWh for gas, though Octopus does not publish a static rate card, and quotes vary by postcode and usage. E.ON Next's regional averages for its standard fixed tariff work out at around 25.21p/kWh for electricity and 6.49p/kWh for gas, excluding VAT and one-off discounts.
Standing Charge
Daily fee covering infrastructure and administration. E.ON Next's published regional average standing charge sits at around 54p a day for electricity and 29p a day for gas, though other quote samples put SME electricity standing charges between 38 and 52p a day, and gas between 28 and 42p a day. Octopus's standing charge is set per quote, with a No Standing Charge option available on qualifying meters.
Pass-Through Charges
May include:
Network costs, as explained in our guide to pass-through and fully fixed energy contracts
Balancing charges
Government levies
Capacity Charges
Applicable to some larger business connections with both suppliers.
Pricing Transparency Comparison
Area | Octopus Energy | E.ON Next |
|---|---|---|
Online Quote Availability | Good, dashboard-based rate visibility | Good, published regional averages |
Upfront, All-In Pricing | Clear, though no static rate card | Clear on the standard fixed product |
SME Simplicity | Good | Good |
Large Business Procurement | Limited | Strong, via npower Business Solutions |
Which Supplier Has Better Renewable Energy Credentials?
Sustainability is becoming increasingly valuable to UK businesses.
Octopus Sustainability Initiatives
Offers:
All business tariffs supplied as 100% carbon-free energy as standard, not as an upgrade
Export tariffs for businesses generating their own renewable power, including Panel Power and Shape Shifters: Export
Half-hourly data supporting more granular carbon reporting
Pros
Renewable electricity included as standard on every tariff, at no extra cost
Strong export options for businesses with solar or battery storage
Cons
Less emphasis on published third-party sustainability certification schemes compared with REGO-badged competitors
Time-of-use tariffs require active management to get the full benefit
E.ON Next Sustainability Initiatives
Offers:
100% renewable electricity across E.ON Next's tariffs
REGO-backed renewable certification available as standard on selected tariffs
E.ON Drive EV charging infrastructure to support fleet electrification
Pros
Renewable electricity backed by independently verified REGO certificates
Established EV charging proposition for fleet and depot customers
Cons
Less emphasis on half-hourly renewable matching than time-of-use specialists like Octopus
REGO certification confirms origin rather than time-matched supply
Sustainability Comparison
Renewable Category | Octopus Energy | E.ON Next |
|---|---|---|
Zero Carbon as Standard | Yes | Yes |
REGO Certification | Available | Yes, standard on selected tariffs |
Export Tariffs for Solar/Battery | Yes | Limited |
EV Charging Infrastructure | Yes, extensive | Yes, via E.ON Drive |
Half-Hourly Renewable Matching | Strong | Limited |
Winner: Octopus, for businesses that want half-hourly matched renewable supply and export income from on-site generation. E.ON Next suits businesses that want REGO-certified renewable electricity alongside a dedicated EV charging infrastructure package.
Customer Service Comparison
Customer support can have a major impact on small businesses when problems arise.
Octopus Business Support
Channels include:
Online account dashboard and app
Phone and digital support channels
Automation and API access for smart-meter and Agile data
Strengths
An industry-leading Trustpilot score, one of the highest of any UK business energy supplier
Strong reputation for clear, jargon-light communication
Weaknesses
An advance payment, typically around 3 months' estimated energy cost, is usually required from new customers
Not always the cheapest option for very large or complex portfolios
E.ON Next Business Support
Channels include:
UK-based contact centres, plus WhatsApp and live chat support staffed by humans rather than bots for billing and contract issues
Dedicated account managers for sites using 100,000 kWh or more
E.ON Next online portal for account and usage management
Strengths
Average phone wait times of 3 to 5 minutes, a significant improvement since the move onto the Kraken platform in 2023
A strong Trustpilot rating of around 4.5 out of 5 from over 217,000 reviews
Weaknesses
The npower B2B customer migration caused service disruption, and some historical complaints still linger
Business-focused online tools lag behind dedicated B2B platforms
Customer Service Scorecard
Area | Octopus Energy | E.ON Next |
|---|---|---|
SME Support | Good | Good |
Large Business Support | Limited | Strong, via npower Business Solutions |
Account Management | Good, digital-first | Good, dedicated managers above 100,000 kWh |
Digital Services | Strong | Good |
Independent Review Scores | Strong | Strong |
How Do Smart Meters and Tech Compare?
Octopus Technology Solutions
Standout tooling for smart-meter data, Agile half-hourly tariffs and EV fleet charging
Business export tariffs with rates updated every half-hour in line with wholesale energy costs
API access to tariff and usage data for automation
Ideal For
Businesses wanting detailed usage data and automation
Sites with EV fleets, solar or battery storage
E.ON Next Technology Solutions
SMETS2 smart meters required for time-of-use and EV tariffs, with half-hourly read capability
E.ON Drive bundles EV charger hardware, installation and back-office (OCPP) management
E.ON Next online portal for billing, usage and account management
Ideal For
Businesses installing EV charging infrastructure as a single package
Sites wanting a straightforward smart meter and time-of-use setup
Technology Comparison
Feature | Octopus Energy | E.ON Next |
|---|---|---|
Smart Meters | Yes | Yes, SMETS2 required for smart tariffs |
Usage Tracking | Yes, app and API | Yes, online portal |
Energy Analytics | Strong | Good |
Time-of-Use / Demand Response | Extensive | Yes, Next Smart Saver Business |
EV Charging Tools | Extensive | Yes, E.ON Drive |
Large Business Monitoring | Limited | Good, via npower Business Solutions |
Business Energy Charges
Additional fees may apply with either supplier.
Common Charges
Fee Type | Octopus Energy | E.ON Next |
|---|---|---|
Standing Charge | Yes, unless on No Standing Charge Tariff | Yes, on the standard fixed product |
Exit Fees on Fixed Contracts | Possible | Yes, tariff switching fees apply on some fixed contract products |
Exit Fees on Flexible Contracts | Possible | Possible |
Late Payment Charges | Possible | Possible |
Deemed Rate Charges | Possible | Yes, if you move premises or continue using energy without a contract |
Contract Renewal Charges | Varies | Varies |
Out-of-Contract Rates | Higher | Higher |
Advance Payment | Typically 3 months' estimated cost, refunded at contract end | Not standard on the SME fixed product |
Key Consideration
Businesses should avoid rolling onto out-of-contract rates, which are typically far more expensive than contracted tariffs, whichever supplier you choose.
Pros and Cons of Octopus
Advantages
Transparent, All-In Pricing
Octopus positions itself around upfront pricing with few hidden fees, and all business tariffs are supplied as 100% carbon-free energy at no extra cost.
Strong Renewable and Tech Credentials
Half-hourly matching, export tariffs and time-of-use pricing suit businesses with solar, batteries or EVs.
High Customer Review Scores
Consistently strong independent review ratings compared with the wider market.
Flexible, Digital-First Account Management
A self-service dashboard and API access built on Octopus's own Kraken platform.
Disadvantages
Advance Payment Required
New customers are typically asked for an advance payment equal to around 3 months' estimated energy cost, which can affect cash flow.
Less Established for Very Large Corporate Accounts
Octopus has less depth in flexible wholesale procurement for the largest multi-site users than E.ON Next's npower Business Solutions arm.
Time-of-Use Tariffs Need Managing
Getting the most from Shape Shifters or Agile means actively shifting consumption, which may not suit every business.
Pros and Cons of E.ON Next
Advantages
Large-Scale Supply Security
As part of one of the UK's largest energy suppliers, E.ON Next offers established financial stability and infrastructure.
Improved Service Since Moving to Kraken
The shift onto the Kraken platform in 2023 brought a marked improvement in service, with phone wait times now averaging 3 to 5 minutes.
Dedicated EV Charging Proposition
E.ON Drive bundles charger hardware, installation and back-office management for depot and fleet EV charging.
Established Large-Business Support
Larger businesses are handled by npower Business Solutions, a dedicated B2B brand with named account managers and flexible procurement capability.
Disadvantages
Lingering npower Legacy Issues
The npower B2B customer migration caused service disruption, and some historical complaints still linger.
Shorter Standard Fixed Terms for SMEs
The standard SME product is limited to 12 or 24-month fixed contracts, shorter than Octopus's maximum term.
Business Portal Less Developed
Online tools are primarily consumer-focused, and the business portal lags behind dedicated B2B platforms.
Which Supplier is Better for Which Business Types?
Business Type | Recommended | Reason |
|---|---|---|
Small Office or Startup | Octopus | Transparent, all-in pricing, easy online switching |
Shop or Retailer | E.ON Next | Straightforward standard fixed contract, managed entirely online |
Restaurant or Hospitality | E.ON Next | Simple fixed contract with dedicated account support above 100,000 kWh |
Multi-Site Business | Octopus | Portfolio management alongside strong usage data |
Manufacturer with Flexible Load | Octopus | Time-of-use tariffs reward shifting consumption away from peak |
Large Corporate (500,000 kWh+) | E.ON Next | Served by npower Business Solutions with named account managers |
Business Wanting Water or EV Charging Bundled In | E.ON Next | E.ON Drive bundles EV charger hardware, installation and supply |
EV Fleet or On-Site Solar | Octopus | Dedicated EV charging network and export tariffs |
Sustainability-Focused Business | Octopus | Half-hourly renewable matching and export options |
Business Wanting the Longest Fixed Term | Octopus | Fixed contracts available up to 3 years |
Octopus vs E.ON Next: Side-by-Side Summary
Category | Winner |
|---|---|
SME Pricing Transparency | Octopus |
Long-Term Fixed Contracts | Octopus |
Large Corporate Energy Management | E.ON Next |
Half-Hourly Renewable Matching | Octopus |
Time-of-Use/Flexible Procurement | Octopus |
EV Charging Infrastructure | E.ON Next |
Multi-Site Management | Octopus |
Customer Service Improvement Trajectory | E.ON Next |
Energy Data Analytics | Octopus |
Independent Customer Reviews | Octopus |
Key Questions to Ask Before Deciding
Before signing a business energy contract, compare:
What is the standing charge, and is there a No Standing Charge option?
What is the unit rate?
Is the tariff fixed, flexible or time-of-use?
Are there exit fees?
What happens at contract renewal?
Are renewable or half-hourly matched tariffs available?
Can smart meters be installed, and how are they used?
How are out-of-contract rates handled?
Is a dedicated account manager provided, and at what usage threshold?
Can multiple sites be managed under one agreement?
Verdict: Octopus or E.ON Next for Business Energy?
The right supplier depends largely on your business priorities.
Choose Octopus if you want:
Transparent, all-in pricing with renewable electricity included as standard
Time-of-use tariffs that reward shifting consumption
Strong support for EV charging, solar or battery storage
A digital-first account with fast self-service tools
Choose E.ON Next if you want:
The scale and supply security of a Big Six-backed supplier
A straightforward standard fixed contract, managed entirely online
A dedicated EV charging infrastructure package through E.ON Drive
Access to named account management and flexible procurement once your usage passes 100,000 kWh, or 500,000 kWh for npower Business Solutions
For most small businesses, day-to-day supply quality differs little between suppliers, because all providers use the same national infrastructure. However, when comparing time-of-use flexibility, export income and renewable matching, Octopus often edges ahead for businesses willing to actively manage their energy use, while E.ON Next remains the stronger choice for businesses that want Big Six scale, a simpler standard product, or a path to dedicated account management as they grow. Either way, it's worth using our business energy comparison tool to check current quotes against other suppliers before you sign.