Charm Industrial

Charm Industrial is a US-based company that converts agriculture residues into bio-oil through a process known as fast pyrolysis. Charm collects agriculture residues (such as corn stover and wheat straw) from farmers in Kansas, as well as forestry operators and wildlife prevention organizations in California.¹ These are fed into a pyrolysis unit and heated at very high temperatures (> 500° C) in the absence of oxygen for a matter of seconds, creating bio-oil. Instead of slowly decomposing and releasing greenhouse gases, the bio-oil locks up the carbon from the original biomass and is injected into EPA-regulated wells, sinking to the bottom of the geological formation where it remains for thousands or millions of years.

Charm’s business model is currently entirely dependent on the sale of removals to individual and corporate buyers. The company uses these funds to build small, mobile pyrolysis units at its factory in San Francisco or purchase pyrolysis units that can be deployed near farms or in forestry settings where agriculture or forestry residues are collected. Charm’s theory of change is that using modular, distributed pyrolysis units instead of centralized biomass processing plants can help drive down capital and transportation costs over time. Lower costs would make this technology more affordable in combating climate change, and make biomass residues economically accessible for use.

The use of biomass feedstocks as a climate mitigation strategy has traditionally been associated with using biomass for energy production (bioenergy). However, as interest in removals has increased and the cost of other renewable energy technologies like solar and wind have decreased, more emphasis has been placed on the carbon value of biomass and the potential for long-term storage. This pathway is known as biomass carbon removal and storage (BiCRS). Its proponents believe it will play an important role in global efforts to achieve net-zero emissions, and that it has global potential to capture and store 2.5 gigatons of CO₂ annually by mid-century. Having sequestered thousands of tons of carbon to date, Charm is a pioneer in actively demonstrating how to scale up this important climate mitigation pathway responsibly and sustainably.

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¹ “operating in forestry areas and utility wildfire operation in California.” Charm Industrial call notes, 2022-10-27; “Charm will…help reduce the intensity and scale of wildfires.” Charm, 2022.

This recommendation was last updated in November 2022, with pricing details updated in May 2023. It may no longer be accurate, both with respect to the evidence it presents and our assessment of the evidence. We do not have plans to update this recommendation in the foreseeable future as we have paused our work assessing direct carbon removal and offset projects. Questions and comments are welcome.

Giving Green believes that donating to our top recommendations is likely to be the most impactful giving strategy for supporting climate action. However, we recognize that contributing to policy advocacy (as most of these recommendations do) may not be tenable for all donors, especially businesses. Taking this into consideration, we recommend Charm Industrial specifically for businesses given its focus on carbon removal and more direct alignment with corporate net-zero ambitions. We believe Charm Industrial to be a high-impact option, but we are unsure of the extent to which its cost-effectiveness approaches that of our top recommendations.