Effective date: 27 August 2026

1. About this policy

This Cookie Policy explains how Heliotec Limited ("Heliotec", "we", "us", "our") uses cookies and similar technologies when you visit heliotec.energy and any related subdomains. It sits alongside our Privacy Policy and describes what cookies we set, why we set them, and how you can control them.

For questions about how we handle personal data more generally, please read the Privacy Policy. For questions specific to cookies, contact our Data Protection Lead: Nick Ballamy, nb@heliotec.energy.

2. What are cookies?

Cookies are small text files that websites place on your device to store information — for example, to keep you signed in, remember preferences, or measure how the site is used. Similar technologies (like browser local storage, pixels and beacons) work the same way in practice and are covered by this policy.

We distinguish between:

  • First‑party cookies set by heliotec.energy directly.

  • Third‑party cookies set by services we embed on the site (for example, analytics and marketing platforms).

  • Session cookies that expire when you close your browser, and persistent cookies that remain on your device for a defined period.

3. Categories of cookies we use

We group cookies by purpose:

Strictly necessary

Essential for the site to work — enabling core functionality such as page navigation, form submission and security (for example, session and CSRF tokens). Because these are required for the site to operate, they do not require consent and cannot be switched off.

Vendors: Heliotec (first‑party).

Analytics

Analytics cookies help us understand how visitors use the site — which pages are popular, how people arrive, and where things can be improved. The data is aggregated and used to guide product and content decisions.

Vendors: Google (via Google Tag Manager, including tags such as Google Analytics), Vercel Analytics.

These cookies are only set if you consent via our cookie banner.

Marketing & functional

Marketing and functional cookies let us understand which channels bring visitors to the site, personalise content, and follow up appropriately if you engage with a form. They also power embedded forms, calculators and other interactive elements provided by our marketing platform.

Vendors: HubSpot.

These cookies are only set if you consent via our cookie banner.

4. Third‑party services on our site

We use the following third‑party services that may set cookies subject to their own privacy notices:

When these services process personal data on our behalf, they do so under appropriate data processing agreements. For more on international data transfers and safeguards, see Section 5 of our Privacy Policy.

5. How to manage your consent

When you first visit the site you will be shown a cookie consent banner that lets you accept, reject, or choose which categories of non‑essential cookies you're happy with. Your choice is remembered so you don't need to make it again on every visit.

You can:

  • Change or withdraw consent at any time using the "Cookie preferences" link in the site footer.

  • Block or delete cookies via your browser — see instructions from your browser vendor (Chrome, Safari, Firefox, Edge). Note that blocking strictly necessary cookies may break parts of the site, for example form submissions.

  • Opt out of specific analytics vendors using their published opt‑out tools (for example, Google's Analytics opt‑out add‑on).

6. Do Not Track

Some browsers offer a "Do Not Track" (DNT) signal. There is no industry consensus on how sites should respond, so we do not currently react to DNT signals. Instead, we rely on the cookie consent banner as the mechanism for controlling non‑essential cookies.

7. Changes to this policy

We may update this Cookie Policy from time to time to reflect changes to the cookies we use or to legal requirements. The "Effective date" at the top of the policy will always show the latest version. Material changes will be flagged on the site before they take effect.

8. Contact

For questions about this policy or the cookies we use, contact:

Nick Ballamy, Data Protection Lead
Heliotec Limited
Suite 160 95 Wilton Road, London, United Kingdom, SW1V 1BZ
Email: nb@heliotec.energy
ICO Registration: ZB911354

You also have the right to complain to the Information Commissioner's Office (ICO): www.ico.org.uk