From energy costs to credit ratings: The multifaceted financial and business risks of climate change

Adapting to rising energy costs: business responses to extreme weather conditions

Climate change has transitioned from being perceived as a distant future concern to an immediate reality with tangible effects on businesses and consumers worldwide. The impacts are evident not only in environmental terms but also in the financial implications it imposes. For instance, the increasing frequency of extreme weather events has already begun to drive up corporate electricity costs, a trend expected to intensify. In the summer of 2022, severe drought conditions disrupted the operation of nuclear reactors in France, necessitating a reduction in electricity production. As Europe faces the prospect of more frequent and prolonged droughts, energy companies will increasingly grapple with regulatory requirements to maintain water levels and temperature thresholds to protect ecosystems and prevent biodiversity loss. These measures, while essential, will constrain energy production, driving up primary input costs (Intelligence, 2024). Considering electricity prices are a key driver of inflation, as highlighted by the Ukraine-Russia conflict, the economic ripple effects are likely to be significant.

Business in the past reacted to shock to energy prices by passing through part of the increased costs to customers, changing operational structure to increase energy saving and making financial adjustments (Schneebacher, 2024):

1) Cost pass-through: On average, firms tend to pass through some of the increased energy costs to their customers. Smaller firms are generally more likely to increase their output prices compared to larger firms, who tend to absorb some of the costs and invest more in capital improvements instead.

2) Operational changes: shifting towards more remote working arrangements is an example, which can pass some energy costs to employees, illustrating an adaptive strategy to manage rising overheads.

3) Financial adjustments: building up cash reserves and increase debt levels as a response to the shock. This trend is particularly pronounced among small firms. However, with EU corporate debt already at a record high of €640bn (ECB, 2024), accentuated by Covid-19, and high interest rates, further borrowing is increasingly risky and unsustainable in the short term.

In addition to adding pressure on energy costs, climate change is already considered a megatrend that can have material impacts on the creditworthiness of issuers and debt instruments, and is already identified as one of the key risks to credit conditions. Credit agencies are integrating climate change risk to adjust probability of defaults, Moody’s has developed a climate-adjusted version of its Public Firm Expected Default Frequency model, a structural model of credit risk that is used by global banks, insurers, corporates, and asset managers by more than 30 years (Moody's, 2024).

Moody’s divided climate change risk into two subgroup: physical risk and transition risk. Physical risk encompasses the costs and risks arising from the physical effects of climate change on businesses’ operations, workforce, markets, infrastructure, raw materials, and assets. Transition risk encompasses the costs and risks associated with the transition to a lower carbon economy, including policy changes, new regulations on goods and services, reputational impacts, and shifts in market preferences, norms, and technologies.

Levels of physical and transition risk can vary dramatically between firms. Firms with facilities in South East Asia, the Middle East, and the Caribbean, areas with high exposures to warming-related climate and weather events, will have relatively high physical risk. Under various climate scenarios, additional global physical damage is projected to be close to 3% of GDP per year by 2050. Firms in industrial sectors such as Coal, Oil & Gas, and Electricity Generation, which are highly exposed to carbon transition, will have relatively high transition risk.

This adds a layer of complexity to industry and company valuations. Consequently, the cost of capital is likely to increase for businesses operating in sectors or regions with heightened exposure to climate change risks or stringent regulations. How can a company mitigate this financial burden? By adopting green practices. In August, the European Central Bank (ECB) highlighted that Eurozone banks are already imposing higher interest rates on “brown” companies compared to their greener counterparts. Research revealed that companies with the highest carbon emissions faced borrowing costs approximately 0.14 percentage points higher than those with the lowest emissions. Furthermore, commitments to reduce emissions already influenced borrowing costs: Companies signaling intentions to cut future emissions consistently secured more favorable credit terms (Harris, 2024).