Tracking the integrity of commitments is important, since commitments alone will not drive change. While institutions have Net Zero goals and interim investment targets, it does not mean that they will direct all of their capital towards low-carbon infrastructure.
First, many institutions are focused on other sectors or strategies that need more liquid investments. Second, they may pursue their emission reduction goals by focusing their capital allocation on companies with low carbon footprints rather than those developing low-carbon infrastructure. Third, an analysis of interim 2025 or 2030 targets shows that many institutions are only committing to align a portion of their total assets to Net Zero, and only a fraction have plans that have been verified by an external party such as the Science-Based Targets initiative.19
Outside of tracking current financing flows and needs, this current difference between commitments and action is why the integrity of those commitments is so important.20 While pledges indicate there is interest from private institutions that represent trillions in capital, this is only slowly turning into investment in real economy mitigation or adaptation projects.21
VC funding for Net Zero has risen sharply
Other spending metrics indicate a potential future increase in climate finance flows.
In addition to the analysis of expected future spending by actor type above, we reviewed spending trends across the low-carbon economy. These include VC investments in companies working on climate solutions, corporate finance (e.g. raising equity and debt capital), and spending on clean energy manufacturing such as for solar panels, wind turbines, and batteries.
All of these will be crucial for developing a robust ecosystem in which investments in real economy Net Zero projects can occur.
Venture capital (VC): While VC funding is not a perfect indicator of future climate finance flows on the ground, such investment in climate solutions companies has increased substantially in recent years. VC funding for climate tech companies was USD70.1bn in 2022, 89% higher than in 2021, and 10.5 times larger than in 2016.22
While fundraising figures from Q1 2023 indicate this total figure may decrease by 50% in 202323 due to macroeconomic factors such as rising interest rates, inflation, and slower economic growth, capital has already been raised for future investments. Estimates indicate that as of late 2022, VC firms focused on climate change held USD37bn in unallocated cash reserves, i.e. dry powder.24 Alongside this dedicated capital, VCs as a whole held USD585.5bn in dry powder as of September 2022, portions of which may be invested in climate solutions companies.25
Multi-billion-dollar climate-focused private equity funds also launched in 202226 with estimates suggesting USD17.6bn was raised for energy transition-specific funds in the period from January to September. This included funds focused on renewable energy, hydrogen, biofuels, and carbon capture.27
Not all of this capital will result in climate finance flows as described in Part 1, with only a portion resulting in changes to the real economy. For example, not all VC-funded climate solutions companies will succeed and implement their products. Even among those that do, some of the initial funding will be used to hire staff, conduct research and development, and develop the business. However, these investments are potentially indicative of increased real economy flows in the future, as more climate solutions come to market.
Corporate finance: In order to channel money to climate-positive solutions in future, companies will need the ability to raise additional capital via equity or debt. For climate solutions companies seeking to raise non-VC finance through equity offerings, 2022 was a less lucrative year than 2021 with IPOs, secondary offerings and mergers with special purpose acquisition companies (SPACs) decreasing by more than 40%.28
This fall was especially stark for de-SPAC transactions. In 2021, climate solutions companies were involved in SPAC deals worth a combined USD35.1bn, compared to just USD8.7bn in 2022, with the transport sector accounting for 67% of the difference.29
Equity capital financing flows to energy storage, renewables and electric vehicles
The companies raising the most equity capital in 2022 align with the sectors and technologies with the largest finance needs as described in Section 2, led by energy storage, utility-scale renewables development, and EVs and batteries.
Equity raising can also be an indicator of future investment – for example, while we have not tracked investments in CCUS projects, companies focused on this sector raised USD1.1bn in 2022.
For companies seeking to raise debt, green and other sustainable bonds – which are “use of proceeds”-focused instruments – are a growing source of capital, as are sustainability-linked bonds which incentivize a specific ESG-friendly performance by the issuer. In order for a bond or loan to be labeled as ESG, sustainable or green, there are certain industry (and/or regulatory) standards that need to be met. According to the Climate Bonds Initiative, annual green bond issuances in 2021 hit USD522.7bn, a 75% increase on 2020.30
Initial estimates indicate that USD487.1bn worth of green bonds were issued in 2022, a year-on-year drop of 6.8%. Corporations issued 55% of all green bonds, with non-financial corporates issuing 27.8% and financial corporates issuing 27.2%. The proceeds were primarily used to finance energy (35% of the total), buildings (29%), and transport (16%) projects. These three sectors have been the largest destinations for use of green bond proceeds since tracking began in 2014.
Clean energy manufacturing: Spending on supply chains and manufacturing for climate solutions (such as parts and materials for solar panels) is another investment trend that is likely to spur implementation of emissions-reducing technology in the future.
Recent estimates indicate that USD79bn was invested in clean energy manufacturing in 2022, a 44% increase on 2021 and a fourfold rise compared to 2018.31 Of this figure, 58% and 30% of the investment went to battery storage and solar manufacturing facilities, respectively.
While the percentages have varied year-to-year, those two technologies have dominated investment in new manufacturing capacity over the past five years. More than 90% of investment in battery storage and solar manufacturing facilities in 2022 occurred in China, although that trend may shift due to the policies described in Section 3, including the Inflation Reduction Act in the U.S.
Spending on climate solutions supply chains and manufacturing capacity set to grow further
There has been a significant uptick in spending on climate solutions supply chains and manufacturing in recent years, and further growth is anticipated. To reach Net Zero, BNEF estimates that clean energy factory investment needs to increase by 58% to USD125bn annually from 2027 to 2030.32 The IEA estimates that the market for manufacturing of clean energy solutions (including solar, wind turbines and components, electrolyzers and more) will more than triple from its current size to reach USD650bn by 2030.33
Net Zero set to triple demand for key minerals
In addition to clean energy manufacturing, mining and processing of critical minerals will play a key role in enabling the growth of climate solutions including clean energy, EVs, and battery storage. The market value of these minerals is estimated to triple by 2050 in a Net Zero scenario, rising to USD331.5bn annually compared to USD117.5bn in 2022.34 The minerals with the largest annual value in the Net Zero scenario will be copper (USD123bn), aluminum (USD75bn), and lithium (USD62bn), followed by steel, nickel, cobalt, and rare earths. As with the financial needs assessment in Part 2, estimates of critical minerals needed to meet Net Zero are likely to change based on technological efficiency improvements or substitutions to reduce costs and reliance on specific minerals.35
Given the investment required to scale sectors and technologies described in Section 2 and the limitations of public finance to fully fill that gap, private investors will play a crucial role in driving funding to climate solutions to meet the goals of the Paris Agreement.
With the support of public finance and policy, businesses and private investors may be able to take advantage of the multi-trillion-dollar opportunity, although further information from companies is required to identify how likely current commitments are to meet this needs gap.