Enphase Energy announced on 27 January 2025 that its Energy System has integrated into Octopus Energy's smart tariffs in the United Kingdom, including Intelligent Octopus Flux (IO Flux)1. The integration follows a strategic relationship announced last year between the two companies to deploy IQ8 Microinverters and IQ Battery 5P units in the UK1.
Intelligent Octopus Flux is described as a smart import and export tariff that optimises the charging and discharging of solar and battery systems, aiming to provide customers the best rates for consuming and selling electricity1. According to Octopus, more than 40% of IO Flux customers make a profit on their energy bills, getting paid for exported energy rather than paying for imports1. Octopus customers with Enphase batteries can automatically charge when prices are lowest and export surplus energy during peak times1.
Octopus Energy uses Kraken, its proprietary software platform, to manage, control and optimise distributed energy resources, allowing customers to flexibly control Enphase's solar and battery systems1. Octopus Energy is the largest energy provider in the UK, offering customer service and energy products to more than nine million households, with operations in 27 countries and a Kraken platform supporting more than 60 million customers worldwide1.
"Intelligent Octopus Flux helps customers make the most of their solar panels, optimizing usage in real time to cut bills. Teaming up with Enphase, renowned for its reliable, top-notch tech, means we can deliver even more value to U.K. homeowners - saving money while building a smarter, greener grid together."
The third-generation Enphase Energy System with IQ Battery 5P and IQ8 Microinverters offers more power, resilient wired communication and an improved commissioning experience, according to the company1. Homeowners can use the Enphase App to monitor performance and manage their systems1. Enphase Energy Systems are fully G100-2 compliant to support the latest UK Electricity Networks Association requirements for grid connection of solar and battery storage1. Enphase offers a 25-year warranty for all IQ8 Microinverters and a 15-year warranty for all IQ Batteries activated in the United Kingdom1.
| Feature | Detail |
|---|---|
| Tariff | Intelligent Octopus Flux (smart import and export) |
| Battery | IQ Battery 5P |
| Microinverter | IQ8 |
| Grid compliance | G100-2 |
| Microinverter warranty | 25 years |
| Battery warranty (UK) | 15 years |
Why it matters for households
The integration means households with an Enphase Energy System can have their solar and battery hardware controlled automatically by Octopus's Kraken platform under a smart tariff. For a home's energy independence, this affects how stored electricity is used: the system can charge when prices are lowest and discharge or export when prices are highest, rather than relying on a fixed schedule set by the householder. The claim that more than 40% of IO Flux customers make a profit on their bills indicates that, for some homes, export payments can exceed import costs, though this depends on system size, usage and export volumes, which are not detailed in the announcement. The battery and smart tariff arrangement is what allows the automated charging and discharging described. Households considering an all-in-one battery system or a battery management system may note that the Enphase system combines microinverters, battery and software, with grid connection compliance to G100-2. The warranty terms, 25 years for microinverters and 15 years for batteries activated in the UK, are stated by the manufacturer. Whether a battery will operate during a power cut is not addressed in the announcement; that depends on the specific configuration and backup provision, which is not reported here.
What happens next
No dated next steps were given in the announcement. Enphase states it is also a participant in the Octopus Energy GridBoost battery program in Texas, but no further UK rollout dates or additional tariff integrations were specified1.