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Zero Carbon Hwb – Privacy Notice

The Zero Carbon Hwb is operated by Energy Saving Trust, Trustmark, Good Homes Alliance and Sero on behalf of the Welsh Government to gather information in support of our path to zero carbon homes.  We are doing this by dissemination of best practice advice on retrofit and newbuild techniques through stakeholder engagement and the creation of bespoke learning modules to help upskill the construction workforce. We are collaborating with other hubs across the UK, such as the National Retrofit Hub (NRH) and Built Environment – Smarter Transformation (BE-ST) hub in Scotland.

Together we will use the information you share with us in your Case Studies to help direct research and advice to all those working in the built environment.


Our contact details

The data controller is ClwydAlyn Housing Ltd, and the data processor is the Energy Saving Trust Ltd, who is administering the Zero Carbon Hwb and providing this Privacy Policy on its behalf.  If you have any queries, in the first instance please contact:

Energy Saving Trust, 223-231 Pentonville Road, London, England, N1 9NG



The type of personal information we collect

We collect and process the following information:

  • personal identifiers and contact details (for example, name and email addresses)
  • contact preferences (for example, whether you would like to be contacted about news or information about events or training courses)


How we get the personal information and why we have it

Most of the personal information we process is provided to us directly by you for one of the following reasons:

  • to get in touch with you about any queries you may submit via the Zero Carbon Hwb
  • to get in touch with you about your Case Study
  • to get in touch with you when you ask us to (for example, in connection with providing you with news, or information about events or training courses)

We share this information with all our consortium partners listed above.

Under the UK General Data Protection Regulation (UK GDPR), the lawful bases we rely on for processing this information are:

(a) Your consent.  For instance, when you ask us to provide you with news updates or information about events or training.  You can remove your consent at any time. You can do this by contacting

(b) We have a legitimate interest.  For instance, when contacting you in response to your queries or contacting you about your Case Study and sharing details of your Case Study with our consortium partners.


How we store your personal information

Your information is securely stored.

  • We keep the contact details you gave us in connection with your Case Study for as long as your Case Study features on the Zero Carbon Hwb.
  • We keep the contact details you gave us for the purpose of responding to your queries for two years after the last contact with you.
  • We will hold your consent (where this is applicable) to receiving news, and information of events and training course until you unsubscribe, and in any case after two years (just to check you are still happy to receive these materials from us).


Our use of cookies and similar technologies

We use the open-source software tool Matomo to analyse how our website is used. Matomo does not transfer any data to servers outside the control of the Energy Saving Trust. Matomo does not record any session data without your consent.  Matomo does not use cookies to do this analysis. If you wish to disable these optional tracers you may do so using the “disable cookies” option in the footer of each page.

One cookie remembers people’s choice about whether to accept cookies or not, and cannot be deactivated.

The following essential cookie is used for this purpose: ‘chd_cookie’


Your data protection rights

Under data protection law, you have rights, within certain parameters, to:

  • ask us for copies of your personal information.
  • ask us to rectify personal information you think is inaccurate. You also have the right to ask us to complete information you think is incomplete.
  • ask us to erase your personal information in certain circumstances.
  • to ask us to restrict the processing of your personal information in certain circumstances.
  • object to the processing of your personal information in certain circumstances.
  • ask that we transfer the personal information you gave us to another organisation, or to you, in certain circumstances.

You are not required to pay any charge for exercising your rights. If you make a request, we generally have one month to respond to you.

Please contact us at if you wish to make a request.


How to complain

If you have any concerns about our use of your personal information, you can make a complaint to us at

You can also complain to the ICO if you are unhappy with how we have used your data.


The ICO’s address:

Information Commissioner’s Office

Wycliffe House, Water Lane, Wilmslow. Cheshire, SK9 5AF

ICO website: