In part one of this series, I explored how we're rethinking sources of ocean energy — from thermal gradients to nuclear SMRs to currents. But understanding energy in the ocean means looking at both sides of the equation. This time, I want to talk about uses: where energy is being consumed in ocean and coastal environments today, where demand is shifting, and where new opportunities are emerging. Because reimagining energy infrastructure only matters if it maps to real demand. And in the ocean, that demand is not only changing — it’s being reshaped by concerns about energy security and shifting cost curves.

When most people think of energy from the ocean, four primary sources typically come to mind: offshore wind, offshore oil and gas, wave, and tidal power. And for good reason — these are the legacy sectors that have absorbed decades of capital and engineering focus.

Reducing “launch costs” for ocean tech will unlock the blue economy, the same way the private space sector led to a boom in orbital observation and communications.

In the last 60 years, natural disasters, driven by climate change, are punishing coastlines at a far greater rate than inland disasters (see graph). Furthermore, the extremes of these events will worsen and may likely increase in frequency. Not to mention the fact that 40% of the world’s population lives in, commutes through, works around, and is otherwise part of this impact zone.

As a scientist I’ve spent decades studying how the air and sea communicate with each other. From a whisper to a roar, their sounds roll and ruffle across the blue expanse. Fruits of their joint labor like tropical cyclones dance across the planet and yield some of the fiercest most bellicose noises. So here I categorize the signals emerging in 2023 and their impact in 2024 as a “whisper” or a “roar.” With so many sounds to make sense of, this is a navigation guide to four areas to tune into...

Propeller Ventures announced four new partnerships with leading ocean science institutions, Oregon State University, University of Hawai’i at Mānoa, University of California San Diego and University of Rhode Island. These partnerships build on initiatives to accelerate climate solutions with founding partner, the Woods Hole Oceanographic Institution (WHOI). Working together with new partners in the West, Northwest, Northeast and Pacific regions, Propeller will further expand efforts to identify commercializable opportunities across these institutions, all of which are working at the frontier of ocean science innovation.

At Propeller, we constantly seek opportunities to inspire ocean-climate innovation and entrepreneurship. Our Hackathons help identify opportunities for research teams from the Woods Hole Oceanographic Institution (WHOI) to solve problems faced in the market and uncover connections between industry and academia.