Octopus Flux Tariff.
If you simply love your solar PV and have been searching for a dedicated tariff for both solar and battery storage then look no further than Octopus Flux. Plus Octopus has now gone a step further and on the 19th of July 2023 launched Intelligent Octopus Flux! (I will do a review on this soon. It is an automated version of the Flux tariff, similar to the Intelligent Octopus tariff which lots of Electric Vehicle owners love.)
With the increasing cost of energy, more and more people are looking for ways to reduce their electricity bills. One way to do this is by installing solar panels and a battery storage system in your home. By making your home into a virtual power station, you can save money by not having to buy electricity from the grid at peak times. Octopus Flux takes this a step further by offering an import and export tariff all rolled into one.
Start harnessing the power of renewable energy now. Invest in solar panels for your home and switch to a provider that offers innovative green energy tariffs. Octopus Energy can help you with both! ☀️
Do you have both solar PV and battery storage at home?
Solar PV and battery storage at home can provide a number of benefits such as increased energy efficiency, reduced electricity bills, improved grid stability and increased reliability of power supply. With the right technology in place, homeowners can save money while also contributing to a greener future and Octopus agrees!
If you have both solar PV and battery storage at home your heart may skip a beat at the sight of a dedicated tariff just for you. Octopus did have an exclusive tariff for owners of Tesla battery storage and solar PV called the Tesla Energy Plan but this has now ended and Octopus Flux has been launched. The new tariff isn’t subject to a particular make or brand of solar panels or battery storage. You will need just an MCS certificate and solar PV.
The Octopus Flux tariff is for residential customers with a Smart meter and solar PV system at home. There is no requirement to have battery storage but it’s obviously one of the reasons why you would consider this tariff as you can time import and export.
Octopus Flux customers will receive the best rates for both the power they use and the power they sell back, benefiting from three hours of cheap rates overnight and generous peak export rates.
You asked, we deliver – Octopus Energy.☀️
How much will I pay for importing and exporting electricity on the Octopus Flux tariff?
Octopus Flux covers both imports and export. You’ll need to buy energy low, sell it high and get as much as you can as cheaply as possible or even better for free. It is a bit of a Del Boy tariff for those who are lucky enough to have Solar PV.
The Octopus Flux rates will change on the 1st of July 2023. Octopus Flux isn’t a fixed tariff so it can go up as well as down and will usually happen after the Energy Price Cap is reviewed.
Since 2019 Octopus Energy customers have generated and exported over 23295958 kWh (23 GW) of electricity. This is enough solar energy to power 8,033 homes for a year. Not a bad day down the market and it is a win, win for everyone if you can turn your home into your very own power station. 🌍☀️
This diagram should help you better understand the concept. This is my interpretation of the Octopus Flux Tariff and not an official image from the Octopus Energy website.
In the summer, the yellow solar line will extend further, providing you with a greater chance to export energy at the peak rate while keeping your battery charged with green electrons. (Thanks to @eddiewawa for your sketch on Twitter 💚⚡️)
Octopus Flux has 3 time of use rates for import and export.
Octopus Flux has 3 rate periods and one standing charge.
- Super cheap rates between 02:00 – 05:00 every day, when you can top up your battery with any extra energy you may need.
- A peak rate between 16:00 – 19:00, is the optimum time to discharge your battery and export surplus energy back to the grid.
- A flat day rate that covers all other times.
Rates will vary slightly throughout the country. You can get a quote by inputting your postcode.
Is Octopus Flux a fixed tariff?
No, Octopus Flux is subject to change the same as the Octopus Flexible tariff. When the rates of our Flexible tariff change the Flux tariff will change too. Octopus will always give reasonable notice of any changes to your rates but unfortunately, the prices aren’t locked in.
These are the rates on Octopus Flux for South Wales, they may vary slightly geographically.
The Octopus FLUX is a flexible tariff. It has an off-peak night rate which is limited to 3 hours 2:00 am to 5:00 am. During the off-peak period, you can import electricity for 17.22p per kWh. However, it also has a more expensive rate between 4p and 7 p.m. during peak demand hours from 16:00 to 19:00 each day when you will currently pay 40.19p per kWh. The rest of the time the cost is 28.71p per kWh. These are the Octopus Flux import rates in South Wales on 3rd January 2024, they may vary depending on your geographical location.
Octopus Flux is a flexible tariff meaning it can change over 12 months rather than being a fixed price.
Am I eligible to switch to the Octopus Flux tariff?
To switch to Octopus Flux you will need to be an Octopus customer and have solar PV. The solar panels don’t need to be installed by Octopus although they can do that too!
You’ll need to have:
- A smart meter providing Octopus with half-hourly readings.
- A copy of the MCS document for your solar system.
- Confirmation your local energy network was notified of your installation. *
* This will be a letter or email you got from your energy network after they were notified by your solar installer.
There is no longer a limit on the invertor. At launch, the AC was limited to 9kW. This limit has now been removed.
If you receive Feed-in-Tariff payments from Octopus or another supplier, they’ll also need a copy of your (Microgeneration Certificate Scheme) MCS certificate.
@sarah_go_green Get paid for excess solar with the @Octopus Energy flux tariff. #octopusflux #octopusfluxtariff #fluxtariff #solarpanels #smarttariffs ♬ Here Comes the Sun – Relaxing Instrumental Music
You can export as much excess solar as you want there is no restriction and you can own an electric vehicle and charge that on the Octopus Flux tariff too.
Why do I need an MCS certificate to switch to Octopus Flux?
The Microgeneration Certification Scheme (MCS) is a standards organisation. They certify low-carbon energy technologies and contractors – including heat pumps, solar, biomass, wind and battery storage. MCS is considered a mark of quality in the industry.
An MCS certificate is not a mandatory or legal requirement for system installation BUT Octopus have have decided to make it a part of its terms in all of their Octopus export tariffs.
Hi Chris, we are obliged to ensure installations are suitably certified and have chosen to rely on MCS certification. We’re super clear that this is a requirement on our Outgoing FAQs (https://t.co/9ZFVzgt3lJ) but if we can help any further please do drop us a DM.
— Octopus Energy (@OctopusEnergy) September 6, 2022
If you want a copy of your MCS certificate or you want to check if one has been registered for your property you can contact MCS at 0333 103 8130, or email: firstname.lastname@example.org. You can also check if an installer is listed as MCS certified.
You will need to show Octopus your MCS certificate if you want to be paid for exporting your excess electricity.
When Octopus receives your MCS certificate they will apply to the Distribution Network Operator (DNO) for an export Meter Point Administration Number (MPAN ) for your smart meter. Once the MPAN is registered by the DNO Octopus can then start paying you for your exported electricity. If you export without this you won’t get paid and Octopus will not backdate any payments.
Can I get paid for my solar export without an MCS Certificate?
Octopus Energy is launching a trial where no MCS Certificate is required for solar export but this is separate from this tariff where an MCS Certificate is still required.
I doubled checked with Octopus on Twitter and here is their response from 5th August 2023.
Hi, we don’t currently accept export customers without an MCS certificate, but we’re in the very early stages of trialling a solution for non-MCS customers. If you or anyone you know would like to hear if this becomes available, pop your name down here: https://t.co/Rg5R5p4vJy 🐙
— Octopus Energy (@OctopusEnergy) August 5, 2023
Am I limited to a 9 kW solar array on the Octopus Flux tariff?
No, this limit has now been removed. At launch, Octopus limited the total output (G99 limit) to 9 kW.
Here is some background information on the Octopus flux tariff and how the terms have changed.
At launch, you were limited to a 9kW invertor on the Octopus Flux tariff.
PV inverters are a central part of the domestic solar PV system. They are typically about the size of a microwave and can help you keep track of your power output. Here’s a quick overview of what an inverter does.
- Convert energy created by solar panels (DC) to electricity that can be used in the home and exported to the grid (AC).
- Maximises power output.
- Communicates with the National Grid.
- Provides information on power production.
- Ensures that your solar PV is operating safely.
The amount of energy your solar array produces (DC) can be different to the amount of power your inverter can output (AC). This is what Octopus were previously limiting. On the Octopus Flux tariff, you were limited to 9 kW of output (AC) that can be sent to the grid at any one time. This limit has now been removed.
Hey Joe, when Flux first launched, there was briefly a 9kW limit but we don’t have a set limit on this anymore. Our website & terms + conditions now show the most accurate info, but do pop us a DM if you’ve any Qs: https://t.co/4BRTP6UWav. 🐙⚡️
— Octopus Energy (@OctopusEnergy) April 23, 2023
There is also a new time-of-use tariff for businesses called Octopus Shape Shifters which is a smart time-of-use tariff. (No solar PV required)