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- Introduction
- Market Landscape of Octopus Energy and British Gas
- The Changing Role of UK Energy Suppliers
- About British Gas
- What Makes Octopus Energy Stand Out
- Tariff and Pricing Comparison
- Value Comparison of Octopus vs British Gas
- How to Choose Between Octopus and British Gas
- What to Prepare Before Switching
- Steps to Switch Energy Suppliers
- Final Thoughts
- Frequently Asked Questions
- Recommended Reads
Introduction
Octopus Energy is disrupting the UK energy market with flexible pricing and a strong focus on green energy. British Gas remains the largest supplier in the UK but now faces growing competition and evolving customer expectations. Both providers offer smart meters and mobile apps to help users monitor their usage. New customer incentives like referral bonuses and sign-up credits make switching more attractive than ever.
Market Landscape of Octopus Energy and British Gas
British Gas, part of Centrica, has long dominated the UK energy scene. However, Octopus Energy, founded in 2015, has quickly grown due to its innovative, eco-conscious approach and customer-first mindset. This guide helps you compare both suppliers, highlighting their core differences, strengths, and areas to consider before making a switch.
The Changing Role of UK Energy Suppliers
UK energy providers are shifting from legacy services to smarter, greener options. Octopus leads in offering daily-priced tracker tariffs and 100% renewable electricity. British Gas leans on its size and broad services but is now adapting to match evolving market demands.
About British Gas
British Gas supplies energy to over 7.5 million homes in the UK. In addition to electricity and gas, it offers home insurance, boiler cover, and smart meter installations. Despite its reputation, the company has faced criticism for customer service delays and billing issues. While British Gas has begun offering green plans, most of its energy supply is only partially renewable, and its fixed-rate tariffs often include early exit fees.
What Makes Octopus Energy Stand Out
Octopus Energy serves more than 7 million homes and stands out for its 100% renewable electricity, solar panel integration, EV support, and transparent pricing. Its popular Tracker Tariff adjusts daily with wholesale energy prices, allowing customers to benefit from market dips. The company’s £50 referral bonus and easy-to-use app further enhance its customer appeal, making it a favorite among those seeking affordability and sustainability.
Tariff and Pricing Comparison
Energy costs depend on tariff type, usage habits, and payment methods. Here’s how the two suppliers compare:
Tariff Type | Octopus Energy | British Gas |
---|---|---|
Fixed Tariff | 14-month contracts, no exit fees, includes green energy | 16–24 month fixed rates, £50–£75 exit fees |
Variable Tariff | Green electricity adjusts to market rates | Standard variable (Ofgem price cap), not fully renewable |
Tracker Tariff | Rates change daily based on wholesale prices | Not available |
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Value Comparison of Octopus vs British Gas
Aspect | Octopus Energy | British Gas |
---|---|---|
Founded & Reached | Founded 2015; 7.3 million+ homes served | Founded 1973; 7.5 million homes served |
Tariff Types | Fixed, Variable (green), Tracker | Fixed, Standard Variable, limited green options |
Cost & Value | No exit fees, £50 referral credit, lower rates overall | Early exit fees, prices close to Ofgem cap |
Green Energy | 100% renewable, solar & EV integration | Partial renewables, limited investment in green infrastructure |
Customer Service & Tech | Top-rated Kraken platform, intuitive app | Mixed reviews, billing issues, app needs improvement |
Smart Meters & Apps | Essential for dynamic tariffs, well-reviewed app | Available but less user-friendly |
Switching & Incentives | Easy process, no fees, £50 bonus | Exit fees apply; there is no sign-up incentive |
Market Position | #1 by meters installed (2025); innovation leader | Former #1; broad service offering |
How to Choose Between Octopus and British Gas
Start by reviewing your monthly usage, tariff goals, and interest in renewable energy. Octopus offers dynamic pricing and strong green credentials. British Gas may be better for users who prefer long-term fixed pricing with broader service coverage. Both offer mobile apps, but Octopus’s user interface is rated more highly. Email alerts and usage tracking tools help customers stay informed and in control.
What to Prepare Before Switching
Have the following ready:
- Recent energy bill and account number
- Annual energy usage (kWh)
- A smart meter reading, if available
- A referral code (e.g., Octopus offers £50 credit)
Steps to Switch Energy Suppliers
- Compare quotes on Octopus and British Gas websites
- Check tariff details, exit fees, and green energy content
- Apply referral codes for savings
- Read contract terms before confirming
- Complete the switch request online
Final Thoughts
Octopus Energy is growing fast, thanks to its green focus and flexible pricing. British Gas remains a major player but needs to modernize to keep pace. Choosing the right provider depends on your preferences for price, service, and sustainability. Review your needs, check tariffs, and make an informed switch. With today’s tools and offers, switching is simpler than ever.
Frequently Asked Questions
Is Octopus Energy actually cheaper than British Gas?
Yes, Octopus’s Tracker Tariff often undercuts British Gas’s fixed or standard plans, especially when market prices fall.
Do both suppliers offer renewable energy options?
Yes, but Octopus offers 100% renewable electricity by default. British Gas only includes partial renewables on most tariffs.
How do I switch from British Gas to Octopus Energy?
Get a quote from Octopus, use a referral code for a £50 credit, and start the switch online. Octopus manages the transition with no interruption to your service.
Which provider has better customer service in the UK market?
Octopus generally receives higher ratings for service speed and transparency. British Gas has made improvements but still receives mixed feedback.

Reviewed and edited by Albert Fang.
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Article Title: Octopus Energy vs. British Gas: Which UK Supplier Offers Better Value
https://fangwallet.com/2025/07/13/octopus-energy-vs-british-gas-which-uk-supplier-offers-better-value/
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