# Using Ocean Alkalinity Enhancement for Carbon Removal with Mike Kelland, CEO of Planetary

- Show: [Hardware to Save a Planet](https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet)
- Published: 2023-07-06
- Length: 45m
- Episode: 30
- Page: https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p
- Listen: https://podcasts.fame.so/e/q80x7r38-mike-kelland-ocean-alkalinity-enhancement

## Summary

Mike Kelland, CEO of Planetary, explains how his company uses Ocean Alkalinity Enhancement (OAE) to remove CO2 by processing mine tailings into magnesium hydroxide, which is then dosed into the ocean to neutralize acidity and sequester carbon. He details the technical process involving electrolysis, the critical role of MRV (Measurement, Reporting, and Verification) using sensors from partners like Dartmouth Ocean Technologies and RBR, and the business model focused on selling carbon removal credits. Kelland discusses the challenge of scaling to a gigaton target by 2045, emphasizing the need to design for massive physical scale from the start to avoid bottlenecks in energy and waste management.

## Chapters

- [0:03](https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p#t=3) Introduction: Mike Kelland and Planetary's Mission
- [2:11](https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p#t=131) Kelland's Journey from Software to Climate Hardware
- [7:23](https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p#t=443) The Science of Ocean Acidification and OAE
- [12:44](https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p#t=764) Planetary's Process: Mine Tailings to Magnesium Hydroxide
- [21:44](https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p#t=1304) MRV Challenges: Measuring Carbon Uptake in the Ocean
- [27:52](https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p#t=1672) Hardware Integration: Sensors, ROVs, and Dosing Systems
- [33:24](https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p#t=2004) Scaling to a Gigaton: Engineering for Massive Scale

## Topics

- [Energy & climate tech](https://hardwarepodcasts.com/topic/energy-and-climate-tech)
- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [Sensors & measurement in products](https://hardwarepodcasts.com/topic/sensors)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Starting a product company](https://hardwarepodcasts.com/topic/starting-a-company)

## Most relevant to

early-stage companies

## Mentioned

- Planetary (company)
- Dartmouth Ocean Technologies (company)
- RBR (company)
- Carbon Plan (company)
- Synapse (company)
- Magnesium Hydroxide (material)
- CTD Sensors (tool)
- Partial Pressure CO2 Sensor (tool)

## Related episodes from other shows

- [What climatetech can learn from the oceans](https://hardwarepodcasts.com/podcast/catalyst/2022-10-13-what-climatetech-can-learn-from-the-oceans) (Catalyst)
- [HIBT Lab! Climeworks: Jan Wurzbacher](https://hardwarepodcasts.com/podcast/how-i-built-this/2022-06-30-hibt-lab-climeworks-jan-wurzbacher) (How I Built This)
- [ICYMI... HIBT Lab! Climeworks: Jan Wurzbacher](https://hardwarepodcasts.com/podcast/how-i-built-this/2023-03-30-icymi-hibt-lab-climeworks-jan-wurzbacher) (How I Built This)
- [The challenges of building a carbon removal portfolio](https://hardwarepodcasts.com/podcast/catalyst/2024-02-29-the-challenges-of-building-a-carbon-removal-portfolio) (Catalyst)
- [Building a decarbonization army with Shashank Samala of Heirloom](https://hardwarepodcasts.com/podcast/how-i-built-this/2024-02-08-building-a-decarbonization-army-with-shashank-samala-of-heirloom) (How I Built This)

## Citing this page

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/hardware-to-save-a-planet/2023-07-06-using-ocean-alkalinity-enhancement-for-carbon-removal-with-mike-kelland-ceo-of-p. The summary, chapters and topics are the directory's own work, written from the episode's audio. The episode itself, its title and its audio belong to Hardware to Save a Planet.