Our 2020 Sustainability Report

Our 2020 Sustainability Report demonstrates the company's commitment to embed safe, sustainable and ethical practices across its portfolio and activities.
It successfully constructed eleven wind and solar projects in Chile and South Africa and continued its development pipeline expansion.  All against a backdrop of the COVID-19 pandemic which it managed successfully by the implementation of a number of safety initiatives across the company. 
Click to open Sustainability Report pdf Read our Sustainability Report here

Our Pillars

Our 2020 report marks the third year in Mainstream's reporting cycle.  We categorise and measure our sustainability performance under four pillars, our sustainability framework.  These pillars stand on the foundation of Mainstream’s unique Global Development Standards, and are underpinned by our seven values.


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Mainstream's development portfolio exceeded 10 GW at the end of 2020. During the year, Mainstream construction managed two wind plant in South Africa and nine wind and solar PV plants three wind plant totalling 1.5 GW (gross). Our APAC region expanded its offshore credentials signing a joint venture with local company, AIT to co-develop the 500 MW Ben Tre offshore wind project.

Mainstream and AIT signing joint venture to co-develop the 500 MW Ben Tre offshore wind project.
Operating mainly in emerging markets involves managing a higher degree of risk. Our ability to manage risk in diverse global markets makes Mainstream unique and gives us a competitive edge. We closely monitor country risk, including political, social and economic risk, and monitor changes in policy, regulation, political stability and ease of doing business. Our presence in several markets allows us to spread these risks; for example, it mitigates the risk of being exposed to an economic downturn in a particular market.
We also review Transparency International’s Global Corruption Barometer and the Index of Economic Freedom on a quarterly basis. This research feeds into our risk mitigation plans, allowing us to take swift corrective action. 
Stakeholder engagement
Community engagement event in Philippines supporting the 71 MW Camarines Sur wind project.

In setting its business strategy, Mainstream considers the interests and concerns of its stakeholders, including the impact of
business activities on the environment and the wider community. The identification of stakeholders is carried out by the considerations and reflections of the Global Leadership Team and senior management.

Stakeholders are defined as those who have an interest in the company and who may be affected by the impacts of business activities or who may be able to affect or influence the actions of the business.

Our main stakeholders are our employees and contractors, customers, business partners, investors, suppliers, as well as governments, and representatives of wider society and the environment.

Reputation Risk

At a group level, we engage with a wide range of stakeholders when conducting our reputation audit. We are interested to understand not only the attributes and perceptions that underpin Mainstream’s reputation but also to gain insights about the issues and topics of interest and concern to stakeholders in specific markets. This allows us to understand our stakeholders’ expectations of Mainstream and to take this into consideration when setting strategy or in using our influence to address issues of mutual concern.

CDP Reporting

Five years ago, Mainstream reported to CDP to better identify and manage its environmental impact. In 2020 Mainstream received CDP A- Leadership status for a third year running scoring high over a range of reporting criteria, including strategy, governance, and value chain engagement.

Our Scope 1 emissions – gross negative/displaced emissions from wind farms in operation amounted to -1,489,369 tCO2e, greater than previous years, reflecting increases due to higher MWh production from three South African assets under operations and two projects reaching operations in South Africa in late 2020. Our Scope 3 emissions notes significant decreases for the year due to the COVID-19 pandemic travel restrictions.

CDP Supplier Engagement Leaders

Mainstream’s commitment to sustainable development was recognised with the award of Supplier Engagement Leadership status by the CDP, independent emissions reporting body, placing it in the top 7% of companies globally. Following a submission by Mainstream disclosing carbon emissions in the 2020 CDP climate change survey, the company was awarded Supplier Engagement Leadership status for its work to reduce CO2 emissions across its supply chains and placed Mainstream among a leading group of fewer than 400 companies worldwide.

Performance on governance, targets, Scope 3 emissions and value chain engagement was assessed in the calculation of Supplier Engagement Ratings. In September 2020, Mainstream was also named among the global standard-setters in the annual CDP audit of corporate environmental stewardship.


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At 31 December 2020, our Board of Directors has six sub-committees, Chief Executive Safety, Risk and Investment, Remuneration, Audit, Sustainability and Nominations to assist in its oversight activities.

Our Code of Conduct and high ethical standards are based on shared values, reflected in our everyday actions and are documented in our Code.

The Code of Conduct also addresses Group Compliance Policies and Procedures including; Speaking Up, Anti-Bribery and Corruption, Conflicts of Interest, Political Contributions, Facilitation Payments, Gifts and Hospitality, Charitable Contributions and Sponsorships.


  • Ethics and Compliance committee representatives in place across all platforms.
  • All Employees and Directors completed Anti-Bribery and Corruption (ABC) training.
  • Corporate Governance Standards Manual.
  • Comprehensive review and bench-marking exercise of the Code of Conduct.
  • Introduction of Partner Compliance Workshops for all new joint venture partnerships.

Mainstream operates within the (UK) Modern Slavery Act 2015 and our Modern Slavery Statement is published on our website. Our Code of Conduct is substantively in alignment with the aims and the spirit of this Act.

As a company, we abhor human trafficking and modern slavery in all its forms and guises. We are committed to actively ensuring that there is no room for such inhumane conduct in our own business and that of our partners, contractors and associates.

Code of Conduct (Eng) Modern Slavery Statement 2021 Code of Conduct (ES) Code of Conduct (VN)


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At Mainstream our purpose-led strategy is brought to life through our people. We leverage our diverse, innovative and empowered colleagues to deliver clean, affordable energy to our markets. We are proud of our people, in 2020 they have demonstrated extraordinary levels of agility, resilience, and determination to deliver in challenging circumstances.

Highlights 2020:

  • Great Place to Work certified for second year running
  • LTI Frequency Rate achieved - employees and contractors
  • SIP Frequency Rate achieved - employees and contractors
  • ISO 45001 certifications in Chile, Ireland, South Africa and Vietnam
  • Established Mainstream Women in Renewables Working Group (MWiR)
  • Sponsored GWEC Women in Wind Leadership Programme. 
Labour Practices
Mainstream's inductees 2020

The renewable energy industry is dynamic and growing, and a strong organisational culture is vital to the sustainable growth and success of our company. We continue to expand our business and do so by attracting an excellent workforce. In 2020, we welcomed 79 new employees to our global team. We work closely with our employees to encourage them to achieve great success and
empower them to make sound decisions.

We work closely with our employees to implement sound leadership practices and provide competitive benefits that support their health, well-being, and professional development. Our goal is to attract top talent and be recognized as one of the best places to work in our industry.

In 2020, Mainstream was recognised as Great Place to Work for a second year running. This followed 99% response rate across the company to the GPTW survey.

The Employee Engagement survey was completed by 100% of employees around all our markets and the company achieved overall satisfaction rates of 88%. We actively recruit people with diverse backgrounds and the skills needed to innovate and improve our competitiveness in the market.

Mainstream places a significant focus on developing its employees with a view to identifying and growing talent to fill leadership and business-critical positions in the future. In 2020, we promoted 44 of our colleagues across the company. This is achieved through close dialogue between managers and employees closely linked to Mainstream Performance Management and CPD Processes.

During the year, in addition to its annual corporate induction and 'State of the Art' internal conference, it facilitated training programmes including; unconscious bias, diversity and inclusion and modern slavery and trafficking.

Safety Culture
Perdekraal East Wind Farm, South Africa passed more than 1 million construction hours worked without any lost time incidents.

Safety is our number one value and our number one priority – a priority further heightened with eleven projects in construction under project management by Mainstream concurrently in 2020. Our safety key performance indicators reported
zero fatalities for employees and contractors, and targets for SIP and LTIs frequency rates across all project sites achieved where we recorded contractor workhours of around 3.5 million hours.

In 2020, we averaged 2,000 contractors on our construction sites each month. Mainstream holds accreditation under Safety ISO 45001/ISO 18001 in Ireland, Chile, South Africa, and achieved accreditation for Vietnam in 2020.


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As an organisation committed to sustainability, we are very aware of our impact on the environment and recognise the fundamental importance of a healthy ecosystem. We aim to minimise our footprint in accordance with our SHEQ Policy and comply with all local legislation, while implementing good environmental practice and continuously improving performance.

Mainstream holds ISO 14001 certifications in Chile, Ireland and South Africa and in 2020, received its certification for Vietnam ahead of schedule.

Highlights 2020:

  • Zero Significant Environmental Events
  • ISO 14001 certifications in Chile, Ireland, South Africa and Vietnam
  • CDP Leadership A- status
  • CDP Supplier Engagement Leader

Mainstream manages biodiversity in line with the IFC Performance Standard 6 which aims to ‘promote the sustainable management of living natural resources through the adoption of practices that integrate conservation needs and development priorities’.

Biodiversity is addressed through its environmental constraint mapping process as part of the iterative layout design process and through the Environmental Impact Assessment (EIA) or region-specific equivalent.

Our goal is to avoid impact on biodiversity and ecosystem services and not to significantly convert or degrade natural habitats.

We work in hazardous conditions and strive to minimise our environmental footprint by managing our environmental impacts. We are continually improving on our management of environmental events and aim to ensure the bio-diversity of the area is maintained during, and reinstated to its natural state once projects are complete.  We report on the energy consumption in our operations and in our travel, as well as the amount of emissions we offset through the operation of wind farms and solar parks in which we maintain an ownership position.

We have taken steps to reduce travel-related emissions by enhancing our technology capabilities to facilitate flexible home working and encourage video-conferencing. Our transition to a cloud-based data solution will also see reductions in emissions related to data centres.

Environmental Focus - Construction
Alena Wind Farm (86 MW), Chile under construction.

Mainstream’s Employer’s Requirements issued to contractors include mitigation measures to protect all identified environmentally sensitive or protected flora and fauna species and habitats located on or near the buildable area and to always act in accordance with the relevant statutory requirements. It also includes mitigation risks related to installed plant (nonbio-degradable oil spillage) and others relating to the contractors’ machinery and vehicles.

The contractor’s role under the requirements also ensures that the protection of the environment is assured throughout the duration of the works.


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Mainstream is committed to working with communities throughout the lifetime of its projects, from greenfield right through to delivering the project into commercial operations and beyond for the operational lifetime of the project.

Community is defined as the people who live in the area impacted by a proposed project and whose livelihoods and identity are based in the area. Mainstream’s aim is to develop socially responsible and sustainable projects in our communities and support them by providing local employment, investing in community initiatives and protecting indigenous peoples and cultural heritage.

Mainstream is a responsible developer and we recognise that working closely with our communities is a fundamental part of any project development. We engage with our communities early and often so they can be part of the project, from greenfield through to commercial operation.

Relief provided in the wake of typhoon season in Philippines.

Highlights 2020

  • 130 community initiatives delivered.
  • 123 employed through community programmes.
  • 500,000+ community members positively impacted by initiatives.
  • Community initiatives administered in Chile, Philippines, South Africa and Vietnam.
South Africa - US$2m Industry Response to COVID-19
Respiratory equipment supplied to local clinics, South Africa

In an innovative approach at the outset of COVID-19 our team collaborated with renewable energy facilities to distribute a US$2 million budget in a co-ordinated approach to support community initiatives. The purpose of a co-ordinated approach
effectively avoided duplication of provisions and improved co-ordination across the communities.

This ensured a more effective and efficient distribution of community necessities where food parcels were distributed, meals were delivered to vulnerable people and children,food gardens were supported to increase fresh produce at soup kitchens; personal protective equipment and CPAP and oxygen machines were delivered to hospitals and clinics in and near our communities.


In Chile, we develop and build our projects through constant engagement with the community and local authority to incorporate their opinion into the design of the projects and minimise any negative impact during the construction and operation stage. In addition, we add value through the development of social investment initiatives with high social impact for the community based on the project’s capabilities and the community’s local interest.

APAC - The Development Stage
Community consultation, Philippines

During the development process, Mainstream is engaging with all its stakeholders and communities through consultations and involvement in local community initiatives. 

Mainstream Vietnam carried out consultations with the local fishing community and indigenous peoples during the year.  And, in the Philippines, the company is engaged with the local communities nearby the 71 MW Camarines Sur wind farm through stakeholder engagement initatives aswell as community initiatives. 

Our vision, mission and values

All of our successes are underpinned by our commitment to our vision, our mission and our values. Our vision to electrify the world with renewable energy helps create our culture globally and brings us together as one big team. Our values are of huge importance to us; they guide us on how we develop our projects to the best international standards.

Learn more about our Vision, Mission and Values.

Learn more about our Vision, Mission and Values.

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SAFETY is our #1 priority.


We work with local partners to deliver indigenous, cost effective energy solutions.


Across our markets we adhere to the same Code of Conduct and anti-bribery and corruption statements.


Has led us to deliver our projects cheaper than new fossil fuel plants in Chile and South Africa.


is to lead the global transition to renewable energy.


We are a dynamic team that can act quickly to deploy more MWs globally.

We share a common set of values across the globe and chief among these is our commitment to safety. It's the value that we put first in our day to day work, all day everyday.


Is fundamental and is at the core of all our relationships


We are a geographically diverse team and work together closely as one team to deliver our vision.


Mainstream’s number one value is Safety. The Company is committed to applying the highest standards of health, safety and environmental management whilst developing world class renewable energy projects. This approach is reflected in Mainstream’s SHEQ policy and SHEQ Management Systems, which have been externally validated to meet compliance with relevant ISO standards. The Company has also received accreditation under the Great Place to Work Institute Ireland and awarded A- in its climate change mitigation through the CDP.


Mainstream has been recognised in the finance industry where it was awarded the PFI Award 2019 for Latin America Renewables Deal of the Year 2019 (pictured right). In late 2019 it was awarded the Infrastructure Investor Awards 2019 Latin America Renewables Deal of the Year for the Condór Portfolio, Andes Renovables and the Infrastructure Investor Awards 2019 for the Middle East and Africa, West Bakr wind farm in Egypt (252 MW).

Renewables Deal of the Year - Middle East and Africa (West Bakr wind - 252 MW)
Renewables Deal of the Year Latin America (Andes Renovables)
Developer of the Year 2014 and 2015
PFI Award 2019 Americas Deal of the Year Condór Portfolio, Andes Renovables
Digital Strategy to Execution Award
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