CO2 / PPM /Annual Averages / Data Source: noaa.gov 1980 338.91ppm 1981 340.11ppm 1982 340.86ppm 1983 342.53ppm 1984 344.07ppm 1985 345.54ppm 1986 346.97ppm 1987 348.68ppm 1988 351.16ppm 1989 352.78ppm 1990 354.05ppm 1991 355.39ppm 1992 356.1ppm 1993 356.83ppm 1994 358.33ppm 1995 360.18ppm 1996 361.93ppm 1997 363.04ppm 1998 365.7ppm 1999 367.8ppm 2000 368.97ppm 2001 370.57ppm 2002 372.59ppm 2003 375.14ppm 2004 376.96ppm 2005 378.97ppm 2006 381.13ppm 2007 382.9ppm 2008 385.01ppm 2009 386.5ppm 2010 388.76ppm 2011 390.63ppm 2012 392.65ppm 2013 395.39ppm 2014 397.34ppm 2015 399.65ppm 2016 403.09ppm 2017 405.22ppm 2018 407.62ppm 2019 410.07ppm 2020 412.44ppm 2021 414.72ppm 2022 418.56ppm 2023 421.08ppm 2024 424.61ppm 2025 427.35ppm
CO2 / PPM /Annual Averages / Data Source: noaa.gov 1980 338.91ppm 1981 340.11ppm 1982 340.86ppm 1983 342.53ppm 1984 344.07ppm 1985 345.54ppm 1986 346.97ppm 1987 348.68ppm 1988 351.16ppm 1989 352.78ppm 1990 354.05ppm 1991 355.39ppm 1992 356.1ppm 1993 356.83ppm 1994 358.33ppm 1995 360.18ppm 1996 361.93ppm 1997 363.04ppm 1998 365.7ppm 1999 367.8ppm 2000 368.97ppm 2001 370.57ppm 2002 372.59ppm 2003 375.14ppm 2004 376.96ppm 2005 378.97ppm 2006 381.13ppm 2007 382.9ppm 2008 385.01ppm 2009 386.5ppm 2010 388.76ppm 2011 390.63ppm 2012 392.65ppm 2013 395.39ppm 2014 397.34ppm 2015 399.65ppm 2016 403.09ppm 2017 405.22ppm 2018 407.62ppm 2019 410.07ppm 2020 412.44ppm 2021 414.72ppm 2022 418.56ppm 2023 421.08ppm 2024 424.61ppm 2025 427.35ppm
News & Views

UK investors turn to renewables amidst Iran war

New UKSIF poll shows 87% expect investments in renewables to rise

Since the war in Iran began in late February, investor confidence in the energy transition has accelerated. Energy security – once the Achilles heel of energy transitions – is now the cornerstone of its appeal.

Investor interest in clean energy has risen as a result. The S&P clean energy transition index, for instance, is up nearly 17% since the beginning of the war.


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The latest evidence in that direction comes from the UK Sustainable Investment and Finance Association (UKSIF). According to a new UKSIF member poll, respondents overwhelmingly expect a spike in investment in renewable energy following the war in Iran.

Capital incoming

Investors with a collective £5.5tn under management responded to UKSIF’s latest survey. The results show investor confidence in renewable energy investment has risen in the aftermath of the war.

87% of respondents now expect a spike in renewable energy investment. A similar share reported their long-term confidence in energy transition investments had increased since February.

“The survey shows that investors believe this renewed focus on energy security will drive increased capital flows into renewable infrastructure assets”, commented UKSIF chief executive James Alexander.

“The traditional energy trilemma has collapsed. Energy security, affordability and decarbonisation are no longer competing objectives, with renewables now representing the preferred solution for all three. It is no surprise that investors are responding accordingly”, he adds.

Twin shock

The fossil fuel price shock that followed the beginning of hostilities marks the second of its kind this decade. Russia’s invasion of Ukraine in 2022 is an example fresh on most investor’s minds.

Twin oil price shocks within the same decade were last seen in the 1970s. Analysis from think tank Ember highlights a key reason why this time is different – low cost alternatives available at scale.

Joe Crehan investment director at Greenbank holds a similar view.

“Just as the twin oil crises of the 1970s accelerated the strategic shift towards energy independence, the Iran conflict, which marks the second fossil fuel-driven energy crisis this decade after Russia’s 2022 invasion of Ukraine, is driving accelerated demand for renewables as the most secure path forward”, he explains.

Opportunity set

A rising tide of capital allocation is also being met by an expanding investment universe. When renewables operator Thrive Renewables floated a crowdfunded bond earlier this month, 800 investors backed it – raising £5m. To date, Thrive has raised over £65m in crowdfunded instruments.

Investor confidence is spreading beyond generation to other components of the value chain. “In our view, renewable energy is inherently less risky than oil and gas, but the same principle applies across the wider value chain”, said Beverley Gower-Jones, OBE, founder and managing partner at the Clean Growth Fund.

“The UK’s clean technology ecosystem is rich with innovation and opportunity across every sector of the economy from energy and transport to food and agriculture, the circular economy, buildings, and industry”, she adds.

UKSIF’s poll – conducted during the month of April – offers a timely glimpse into investor responses to the war in Iran. The findings support what is now an emerging consensus – the twin fossil fuels shocks of the 2030s will likely expedite the rollout of renewable energy.


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