Who Can Use the Octopus Solar Referral Link: Core Eligibility Rules
Octopus Solar's £100 Smart Tech referral is available to new customers aged 18 or over who have not previously requested a solar, battery, or heat pump quote from Octopus Solar before clicking the referral link. The referral link must be clicked in a standard (non-incognito) browser before you start your quote application—this is the single most critical eligibility rule. Age, UK residency, and postcode coverage are the only hard barriers; existing Octopus Energy customers are fully eligible, and there is no minimum system size requirement.
The referral programme operates on email address matching rather than code entry. When you click the link, you enter your email on Octopus Solar's Smart Tech landing page. That email is then matched against the email you use when requesting your quote on the main Octopus Solar website. If both emails are identical, the referral relationship is automatically locked in. If you use a different email on your quote form, the referral will not be recognised, and you will not receive the £100 reward—even if you clicked the link correctly beforehand.
The referral is conditional on your system reaching full installation, commissioning, and MCS (Microgeneration Certification Scheme) certification. If your project is abandoned, cancelled, or suspended before MCS certification is issued, no reward is paid. Both the new customer and the person who referred them receive £100 each; the referrer does not need to be an existing Octopus customer.
Age, Residency, and Postcode: What Disqualifies You
Octopus Solar requires all applicants to be aged 18 or over and to be UK residents with a valid UK postcode in an area where the company operates. If you are under 18, you are not eligible for the referral programme, though you may still request a quote if a parent or guardian is the account holder. Octopus Solar operates across England, Scotland, and Wales; Northern Ireland is not currently served as of 2026. You can check your postcode eligibility by entering your address on the Octopus Solar website during the quote request process—the company confirms within 3–5 working days whether your property is serviceable.
Postcode ineligibility is the most common disqualification reason. Octopus Solar's coverage is determined by grid connection feasibility, local infrastructure, and Octopus Energy's supply licence areas. Even within England, Scotland, and Wales, some postcodes are not eligible due to remote location, complex grid connections, or structural constraints (e.g., listed buildings, conservation areas requiring planning permission). If your postcode is flagged as ineligible, you cannot use the referral link—Octopus Solar will not process your quote, and no reward will be credited. Always confirm postcode eligibility in writing before committing time to a quote application.
Residency requirements are straightforward: you must be a UK resident with a permanent UK address where the solar, battery, or heat pump system will be installed. Holiday homes, investment properties, and commercial premises are typically excluded, though Octopus Solar assesses these on a case-by-case basis. If you are unsure whether your property qualifies, contact Octopus Solar support before clicking the referral link.
The Email Matching Rule: Why It Matters and How It Works
Octopus Solar's referral system relies entirely on email address matching between the Smart Tech landing page and your quote application. This is not a traditional discount code that you type at checkout; instead, Octopus Solar's backend system automatically compares your referral landing page email against your quote form email and locks in the referral if they match exactly. If the emails do not match—even by a single character, space, or capitalisation difference—the referral will not be recognised, and you will forfeit the £100 reward.
This rule creates a critical eligibility condition: you must decide on a single email address before clicking the referral link and use that exact email every time Octopus Solar asks for it. Common mistakes include using a personal email on the referral landing page but a work email on the quote form, using an old email address you no longer check, or accidentally typing a typo (e.g., "[email protected]" vs "[email protected]"). Once your quote is submitted with a mismatched email, you cannot retroactively correct it without contacting Octopus Solar support and requesting a manual referral link—a process that may or may not succeed depending on their discretion.
To avoid this pitfall, write down or screenshot your chosen email address immediately after entering it on the referral landing page. Take a screenshot of the confirmation page showing your email. Then, when you request your quote, copy and paste your email directly from your screenshot or notes rather than typing it manually. This eliminates typos and ensures exact matching. If you realise you have used a different email before submitting your quote, contact Octopus Solar support immediately and ask them to update your email or manually link the referral—they may be able to help if you can prove you clicked the original link.
New Customer Status: Do You Qualify If You Have Quoted Before?
Octopus Solar defines a "new customer" as someone who has not previously requested a solar, battery, or heat pump quote from Octopus Solar or its parent company Octopus Energy's installation division. If you have already started a quote with Octopus Solar—even if you did not complete it—you are technically no longer eligible for the referral programme. The referral link must be clicked before your quote application begins; if you have already submitted a quote without using the link, you cannot retroactively apply the referral.
However, if you have requested a quote but not yet submitted it (i.e., you are still in the consultation phase), you may be able to withdraw your current quote and restart using the referral link. Contact Octopus Solar support and explain that you intended to use the referral programme but forgot to click the link first. They may allow you to cancel your current quote and restart with the referral link active. This is not guaranteed, but it is worth asking—Octopus Solar's support team has discretion in these situations.
Existing Octopus Energy electricity or gas customers are fully eligible for the Smart Tech referral reward. The "new customer" status applies only to Octopus Solar's installation services, not to your existing energy supply relationship. If you are already paying for electricity or gas with Octopus Energy, you can still use the referral link and receive the £100 gift card when your solar or heat pump system is installed.
System Type and Size: Are There Restrictions?
The Octopus Solar £100 Smart Tech referral is available for solar PV panel installations, home battery systems, and air source heat pump installations with no minimum or maximum system size restrictions. Whether you are installing a small 3kWp solar system or a large 10kWp system with a 15kWh battery and dual heat pumps, the referral reward remains £100. There are no tiered rewards based on system cost or size—the offer is flat-rate for all qualifying installations.
Combination installations (e.g., solar + battery + heat pump in one project) are fully eligible and receive a single £100 reward, not separate rewards for each technology. If you are installing multiple systems, the referral applies to the entire project as one transaction. This is actually advantageous, as Octopus Solar often offers package discounts when you combine technologies, so your total cost savings (package discount + £100 referral reward) can be substantial.
The referral is conditional on the system being installed and commissioned. If you request a quote but decide not to proceed with installation, or if your installation is cancelled before commissioning, no reward is paid. The £100 is only credited once your system is fully installed, switched on, and issued with an MCS certificate.
Multiple Referral Codes: Can You Use More Than One?
You cannot use multiple Octopus Solar referral codes or links on a single installation. Each new customer is eligible for one £100 reward per system installation. If you somehow clicked two different referral links before requesting your quote, Octopus Solar's system will recognise only the most recent link click and credit the referral to that referrer. You cannot "stack" referral rewards or use two codes to receive £200.
However, if you install multiple systems over time (e.g., you install solar in 2026 and add a heat pump in 2027), each installation is treated as a separate transaction. You would be eligible for a £100 referral reward on each installation, provided you use a new referral link for each project and have not previously quoted for that specific technology. This is an edge case and would require explicit confirmation from Octopus Solar, as their systems may flag you as an existing customer after your first installation.
If you are referring a friend, you can refer multiple friends and receive £100 for each successful referral. The referral programme is designed to reward both the new customer and the person who referred them, so there is no limit on how many friends you can refer—each referral is a separate transaction. However, you cannot use the same referral link twice; each referrer receives a unique link, and that link can only be used once per new customer.
Conditions That Void Your Eligibility
Several specific conditions will disqualify you from the Octopus Solar referral reward, even if you meet all the basic eligibility criteria. Using an incognito or private browsing window when clicking the referral link is a common mistake—incognito mode does not preserve cookies in the same way as standard mode, and Octopus Solar's referral tracking relies on cookies. Always click the link in a standard browser (Chrome, Firefox, Safari, or Edge in normal mode, not private/incognito).
Withdrawing your quote after submission and restarting without the referral link will void your eligibility. Once you have submitted a quote without using the referral link, you are locked into that quote application. Cancelling and restarting may reset your eligibility, but Octopus Solar's systems may flag you as an existing customer and refuse to process a new quote. Contact support before attempting this.
If your installation is abandoned, cancelled, or suspended before MCS certification is issued, you will not receive the £100 reward. The reward is conditional on completion—partial installations, cancelled projects, and systems that are installed but never commissioned do not qualify. If your project is delayed significantly (e.g., 6+ months), contact Octopus Solar to confirm the referral is still active; some companies expire referrals if the installation takes too long.
Fraudulent or duplicate applications will disqualify you. If Octopus Solar detects that you have submitted multiple quotes using the same referral link or attempted to claim the reward twice, they may cancel both applications and flag your account. This is rare but possible if you accidentally create duplicate accounts or attempt to exploit the programme.
What Happens If You Do Not Meet Eligibility Requirements
If you discover you are ineligible for the Octopus Solar referral after clicking the link—for example, your postcode is not covered—you still have options. First, contact Octopus Solar support immediately and explain your situation. If your postcode is ineligible, they will tell you clearly and your quote application will be rejected; you cannot proceed further. If your postcode is eligible but you have other eligibility issues (e.g., you are under 18, you have already quoted before), Octopus Solar will flag this during the quote process and may offer alternative solutions.
If you are ineligible but still want to proceed with a solar or heat pump installation, you can request a quote without the referral link. You will not receive the £100 reward, but you can still access Octopus Solar's installation services. Some customers in ineligible postcodes are offered alternative discounts or financing options by Octopus Solar's sales team—it is worth asking.
If you believe you have been incorrectly marked as ineligible, request a formal review from Octopus Solar support. Provide evidence of your eligibility (e.g., proof of age, proof of UK residency, postcode confirmation letter) and ask them to reconsider. Octopus Solar's support team has discretion in edge cases and may override an automated rejection if you can demonstrate you meet the criteria.
Verifying Your Eligibility Before Clicking the Link
Before you click the Octopus Solar referral link, take five minutes to verify your eligibility and avoid wasting time on a quote you cannot complete. First, confirm you are aged 18 or over—this is non-negotiable. Second, confirm you are a UK resident with a permanent UK address in England, Scotland, or Wales. Third, enter your postcode on the Octopus Solar website's postcode checker tool (available on their homepage) to confirm your property is serviceable. Fourth, confirm you have not previously requested a solar, battery, or heat pump quote from Octopus Solar. Fifth, decide on a single email address you will use throughout the entire process and write it down.
Once you have confirmed all five points, you are ready to click the referral link. Use a standard browser (not incognito), click the link, and enter your email address carefully. Take a screenshot of the confirmation page. Then, proceed to request your quote using the exact same email address you entered on the referral landing page. Follow these steps precisely, and your eligibility will be locked in.
If at any point during the quote process you are asked eligibility questions (e.g., "Are you a new customer?" "Is this your primary residence?"), answer honestly. Octopus Solar verifies eligibility at multiple stages, and dishonest answers will disqualify you and may result in your quote being cancelled. The referral reward is only £100—it is not worth jeopardising your entire installation or facing potential fraud accusations.
Octopus Solar Referral Eligibility: Final Checklist
Use this checklist to confirm you are eligible before clicking the referral link. Tick each box; if you cannot tick all of them, you may not qualify for the £100 reward.
- ☐ I am aged 18 or over
- ☐ I am a UK resident with a permanent UK address
- ☐ My postcode is in England, Scotland, or Wales (not Northern Ireland)
- ☐ I have confirmed my postcode is serviceable on the Octopus Solar website
- ☐ I have not previously requested a solar, battery, or heat pump quote from Octopus Solar
- ☐ I have chosen a single email address I will use throughout the entire process
- ☐ I will click the referral link in a standard browser (not incognito mode)
- ☐ I will use the exact same email on the referral landing page and the quote form
- ☐ I intend to complete the installation and commissioning process
- ☐ I understand the £100 reward is delivered post-installation, within 90 days of MCS certification
If you have ticked all ten boxes, you are eligible. Proceed with confidence. If you have left any box unticked, contact Octopus Solar support before clicking the link to clarify your eligibility status. This five-minute check will save you from the frustration of discovering ineligibility after you have already invested time in a quote.
How to Check If You're Eligible for This Octopus Solar Code
The fastest way to confirm your eligibility is to check if you're eligible for this Octopus solar code on our main offer page, which includes Octopus Solar's official postcode checker tool and links to their support contact details. UseMyCode has verified the eligibility rules stated on this page as accurate as of 8 June 2026, and our main offer page is updated daily to reflect any changes to Octopus Solar's terms. If you have specific eligibility questions not answered here, Octopus Solar's customer support team can provide definitive guidance—contact them via their website or phone line before clicking the referral link.
About This Article
This article was written by the UseMyCode editorial team and last reviewed on 8 June 2026. UseMyCode independently verifies every referral link and discount code before publication. This page may contain affiliate links — see our editorial policy for details.
