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Sustainability Intern

Calor Gas Ltd • United Kingdom • Added on Jun 11, 2026
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This internship offers a hands-on immersion into the mechanics of corporate environmental management, where you will own the day-to-day coordination of carbon reporting and data monitoring. Your primary focus involves serving as the internal expert for the company’s carbon reporting platform, ensuring that performance indicators are accurate and consistent across the business. You will also bridge the gap between technical data and people by supporting internal engagement campaigns and community partnerships.

Energy providers are currently navigating a critical pivot toward lower-carbon fuels, and this role sits at the heart of that transition. By managing carbon reporting and EcoVadis submissions, you contribute directly to the transparency required to decarbonize a traditional utilities network. It is a rare chance to see how a major infrastructure player translates high-level climate ambitions into operational changes in waste, recycling, and renewable energy use.

This suits someone who is highly analytical and loves translating complex data into insights. You should be a recent graduate with a passion for climate issues and the interpersonal skills to influence stakeholders in a large, industrial setting.

Job FAQs

What are the main missions and responsibilities of this role?

The primary mission involves managing the carbon reporting cycle for the organization, specifically acting as the technical lead for the reporting platform. You will be responsible for obtaining, verifying, and analyzing environmental data to ensure that emissions tracking is both robust and actionable for different business units. Beyond data management, you will assist in the implementation of the broader sustainability strategy. This includes coordinating operational projects related to recycling and waste management in partnership with procurement, while also supporting the creation of sustainability communications that reach employees and external clients.

Key learning opportunities for this job

A major highlight of this internship is the deep dive into carbon accounting and ESG frameworks. You will gain practical experience with EcoVadis assessments and voluntary sustainability disclosures, which are increasingly vital skills in the corporate world. Furthermore, you will develop technical proficiency in sustainability software and data visualization. Learning how to identify trends in emissions data and translate them into strategy-level recommendations provides a strong foundation for any future career in environmental management or corporate responsibility.

How does the ideal candidate look like (experience, skills)?

The ideal candidate is a recent graduate with a strong academic background in sustainability, environmental management, or a related field. While technical knowledge of climate change is important, the role requires practical skills in Microsoft Excel and an analytical mindset to handle large datasets accurately. Soft skills are equally crucial; you should be a proactive communicator capable of building relationships with various internal stakeholders. A candidate who shows genuine enthusiasm for the energy transition and possesses the persistence to chase data across different departments will thrive in this environment.

Advice to stand out and make a successful application

To stand out, demonstrate a clear understanding of the UK energy landscape and the specific challenges of decarbonizing off-grid energy. Mentioning how you have handled data-heavy projects in the past—even during university—will prove your competency for the carbon reporting aspect of the role. Tailor your application by highlighting any experience you have with stakeholder engagement or community projects. Calor values the social and colleague engagement aspect of sustainability, so showing that you can be an ambassador for green initiatives is a major advantage.

What aspects of the company's sustainability is this role likely to focus on?

The role focuses heavily on Scopes 1, 2, and 3 emissions, given the nature of the utilities industry. You will be at the forefront of the company's efforts to lower carbon footprints relative to traditional fuels, ensuring that every kilowatt-hour is accounted for in their ESG reporting. There is also a significant focus on circular economy principles. By coordinating with procurement on waste management and renewable energy activities at operational sites, you help integrate physical environmental improvements into the company’s daily business model.

What are the main challenges someone in this role might face?

One of the main challenges will be data integrity and collection. In a large organization with diverse operational sites, gathering consistent and accurate data from various department heads can be difficult and requires excellent follow-up skills. Another challenge is the technical learning curve associated with carbon reporting platforms and complex ESG frameworks. You will need to become an expert quickly to provide cover for the Sustainability Manager and serve as a reliable point of contact for the wider business community.

How could a typical day look like for someone in this position?

A typical day starts with monitoring performance data on the carbon reporting platform, checking for anomalies or missing entries from regional depots. You might spend time drafting an internal newsletter to update colleagues on recent community partnership achievements or recycling milestones. Afternoons involve meetings with the procurement or operations teams to discuss specific waste reduction projects. You will also spend significant time on Excel, analyzing trends to prepare for upcoming voluntary disclosures, ensuring all KPIs are trending in the right direction.

What are the opportunities for professional growth and development in this role?

This contract is designed as a career springboard. By working closely with the Sustainability Manager and the larger global community, you gain visibility that can lead to permanent roles or provide the hands-on experience required for Junior Sustainability Consultant positions. You will have lead responsibility for specific modules of the sustainability strategy, which allows you to build a tangible portfolio of achievements, such as successfully leading an EcoVadis submission or completing a full annual carbon reporting cycle.

The main stakeholders you might be interacting with

Your primary internal stakeholder is the Sustainability Manager, who will provide guidance and oversight. You will also collaborate frequently with the Procurement and Operations teams to implement environmental initiatives at the site level. External interactions include the global sustainability community where best practices are shared across the parent company's network. You will also act as a liaison for community partners and charitable organizations, managing the social pillar of the CSR strategy.

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