Mar 17, 2023 ESG

Too few companies use internal water pricing

Far fewer companies use ‘shadow’ internal water prices than carbon prices to guide business decisions.

It has been 46 years since the United Nations (UN) first held an international conference on water. With recent international agreements to protect the high-seas and biodiversity, we are optimistic that the upcoming UN’s Water Conference[1], 22-24 March, could create momentum on water sustainability.

Not before time. Properly assessing the full environmental costs of water usage is a key question, not least for investors. To make decisions that better reflect the true value and cost of water and carbon, some companies use an internal ‘shadow’ price to guide business decisions. “However, many more companies should use internal water pricing to assess the costs and benefits of investing in clean water technologies and to anticipate science-based government regulations.”, explains Murray Birt, Senior ESG Strategist at DWS.

Our Chart of the Week shows how more and more companies are starting to use internal water pricing to stress test their business decisions. But overall, the share of companies using or considering such schemes remains disappointingly low, both in terms of their numbers and as a share of overall market capitalization. That already gives a rough idea of the challenges investors face in assessing potential financial implications.

Still too few companies are using internal ‘shadow’ water pricing


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* MSCI All Country World Gross TR Index, Market cap as of 2/28/23

Sources: CDP database, DWS analysis 2023, DWS Investment GmbH as of 3/15/23

We find that out of the roughly 2,800 companies in the MSCI All Country World Index (ACWI), the number of companies using internal water pricing grew from just 68 to 120 companies, since 2018. Moreover, the number of companies planning to use internal water pricing grew from 147 to 253 companies during that time period. In total, these groups of companies represent 19% of the market capitalization of ACWI. In comparison, 700 companies are making water related disclosures to CDP[2]. Also, only thirty companies disclosed the internal water pricing that they use and for most companies the price appears very low and not reflective of environment externalities.

In comparison, 648 companies used internal carbon pricing last year and 396 companies plan to, representing 37% of ACWI market capitalization. The internal carbon prices used by companies are also much higher[3], ranging from 18-28 dollar per metric ton with some companies using multi-hundred-dollar carbon prices.

The investors (including DWS) participating in the Valuing Water Finance Initiative[4], expect companies to reduce water use and water pollution, as well as improve disclosure on the topic. To gain a rough idea of just how large the impact could be, Ceres[5], Bluerisk[6] and DWS have examined the financial implications of companies being required to clean up and reduce their water use[7]. For some large publicly traded packaged meat and apparel companies, the additional costs could range from 60 million dollars to 1.8 billion dollars annually, representing a material part of earnings of the businesses concerned. It is a topic we will no doubt return to.



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1. UN Water Conference 2023 https://sdgs.un.org/conferences/water2023/faq

2. Formerly the Carbon Disclosure Project, which is a not-for-profit charity that runs the leading global disclosure system for investors and other stakeholders to manage their environmental impacts. Home - CDP

3. CDP 2021 www.cdp.net/en/research/global-reports/putting-a-price-on-carbon

4. https://www.ceres.org/water/valuing-water-finance-initiative

5. Ceres is a nonprofit organization working with the most influential capital market leaders to solve the world’s greatest sustainability challenges

6. Bluerisk is water strategy and data consulting company focused on enhancing resilience and reducing risk in the face of emerging water challenges

7. https://www.dws.com/insights/global-research-institute/financial-implications-of-addressing-water-externalities-in-the-apparel-and-meat-industries/

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