Thank you for your interest in National Grid's "Carbon Intensity API" (Application Programming Interface). The Carbon Intensity API provides programmatic access to carbon intensity data for Great Britain's electricity system. API documentation is available here.

These are the Terms of Use for the Carbon Intensity API.

1. Licensed Uses and Restrictions
2. Trademark
3. Relationship of the Parties
4. Support
5. Fees
6. Disclaimer of Warranty
7. Limitation of Liability
8. Release and Waiver
9. Indemnity
10. General Terms
11. More Information

If you want to use the Carbon Intensity API, then yes. National Grid are offering use of the Carbon Intensity API only on the terms posted here. By using the Carbon Intensity API, you are agreeing to follow the Terms of Use. If you do not agree to the Terms of Use, National Grid does not grant you a license to use the Carbon Intensity API.

Your license to the Carbon Intensity API continues until it is ended by you or National Grid. How would the license end? Either party can end the license any time for any or no reason. If you want to end the license, just stop using the Carbon Intensity API. That will end the license. If you violate any of the terms below, your license to use the Carbon Intensity API terminates automatically and right away. If National Grid sends you a written notice terminating your license, that also terminates your license right away.

We might update these terms from time to time without notice or reason.

License: CC BY 4.0

National Grid owns the Carbon Intensity API.

• You can use it anywhere in the world.
• Your use is non-exclusive, so others can use it too.

• Sell, lease, or sublicense the Carbon Intensity API or access to it.
• Use the Carbon Intensity API for any application that substantially replaces the core user experience of National Grid's websites, apps, or the Carbon Intensity API.
• Do anything that could mislead users into thinking you are offering a replacement for National Grid or that you or your product are endorsed or created by National Grid.
• Use the Carbon Intensity API to spam or harass anyone.
• Conceal your identity or your application's identity when requesting authorisation to use the Carbon Intensity API.
• Use the Carbon Intensity API for any application that is spyware, adware, or any other malicious software, or is used in connection with any such software.
• Use the Carbon Intensity API in a way that violates the law or any person's rights, including intellectual property and privacy rights.
• Use the Carbon Intensity API in a way that undermines the stability of the host servers or the behaviour of other applications using the Carbon Intensity API. National Grid applies a rate limit and may block applications that make a large number of calls to the API.

By accepting these terms, you agree to comply with the Carbon Intensity Terms of Use. National Grid reserves all rights not expressly granted in these terms.

You may use the National Grid word mark or logo in connection with the Carbon Intensity API as approved by National Grid. You agree to seek prior approval in writing from National Grid before any use of National Grid's logo or word mark.

National Grid has certain rights in the API under the laws of the United Kingdom and other countries. National Grid's rights apply to the Carbon Intensity API and all its output and executables. You agree to abide by all applicable proprietary rights laws. These terms do not implicitly grant you rights in any intellectual property owned or licensed by National Grid. The only such rights you receive under these Terms are those explicitly granted.

National Grid may choose to provide you with support or modifications for the Carbon Intensity API in its sole discretion. National Grid may change, suspend, or discontinue any aspect of the Carbon Intensity API, including such support or modifications, at any time without notice or liability.

National Grid is currently providing you the Carbon Intensity API for free.

National Grid's providing the Carbon Intensity API to you as is. That means it does not come with any warranty, express or implied. No implied warranty of merchantability, fitness for a particular purpose, availability, security, title or non-infringement. We have made this Carbon Intensity API as reliable as possible. But the Carbon Intensity API will not be perfect. So, we are informing you now, it might have bugs, inaccuracies or interruptions. You use the Carbon Intensity API at your own discretion and risk.

National Grid will not be liable to you for any damages that arise from using the Carbon Intensity API. This includes all of types of damages (indirect, incidental, consequential, special or exemplary). And it includes all kinds of legal claims, such as breach of contract, breach of warranty, tort, or any other loss.

You release and waive all claims against National Grid to the maximum extent permitted by law. This means all types of claims, damages, costs and expenses arising from your use of the Carbon Intensity API. This includes all claims against any of National Grid's subsidiaries, affiliates, officers, agents, licensors, co-branders or other partners, and employees.

You understand that you or National Grid might later find out that a fact relating to this release is different than what we now believe. You accept and assume the risk of such possible differences in fact.

You expressly waive all rights and benefits you may have under any other source of law of similar effect, to the fullest extent permitted by law.

To the maximum extent permitted by applicable law, you agree to indemnify National Grid against any third-party claim arising from or related to your use of the Carbon Intensity API. This indemnity obligation to National Grid includes National Grid's subsidiaries, affiliates, officers, agents, licensors, co-branders or other partners, and employees. This indemnity obligation includes any liability or expense arising from all claims, losses, damages (actual and/or consequential), suits, judgments, litigation costs and attorneys' fees. National Grid will work in good faith to give you written notice of any such claim.

You and National Grid are acting independently of each other. Neither will act as partner, joint venturer, agent, employee or employer of the other. You will not have any express or implied authority to create or assume any obligation for National Grid or on behalf of it.

If any provision of these terms is found invalid by a court of competent jurisdiction, you and National Grid agree that the court should try to give effect to the parties' intentions as reflected in the provision and that other provisions of these will remain in full effect.

These terms are governed by the laws of the United Kingdom without regard to its conflict of law provisions. You and National Grid agree that any suit arising from these terms must take place in a court located in the United Kingdom.

If National Grid does not exercise any right it has under these terms, any such inaction does not waive the applicable right or provision.

These terms may not be construed against either party.

These terms are the entire agreement between National Grid and you concerning National Grid's Carbon Intensity API.

Please refer to the Carbon Intensity website for more information. API documentation is available here.