About The Liquid Grid

MissionTo educate the public about marine renewable energy and other forms of marine clean technology. 

The ocean is huge. It covers nearly 71% percent of our planet and accounts for 99% of living space. It drives global weather patterns, absorbs carbon dioxide, provides us with food and water, and helps us generate electricity. While the ocean may be immense it is not immutable.  In fact, it is changing quite fast. Climate change, pollution, commercial shipping, and over-fishing are just a few of the different stressors afflicting it today. Left unchecked, our oceans may look very different in the not so distant future.

My goal is to introduce readers to devices that can help us use and explore the ocean more sustainably.  What does this entail?  Quite simply, any clean technology that can be deployed in the ocean. Marine renewables, underwater energy storage,  pollution cleanup, aquaculture, or ocean drones are just a sampling of what you can expect to find on this site.

This Liquid Grid is intended for all those interested in renewable energy, sustainability, and marine conservation.  You don’t need to be an engineer, oceanographer, or scientist to understand the technology or how it works.  All you need is a little curiosity.

If you’re looking for political banter, cats playing pianos, or pictures of the meal I just ate at that new taco joint down the street then head over to Facebook. If you’re looking for funny and informative posts about marine clean tech, then check out The Liquid Grid.

To get started, check out my first two posts: Why We Need Renewable Energy and The Case for Marine Renewables.

Source: Ocean Power Technologies, Inc.

Source: Ocean Power Technologies, Inc.

About the Author

david_hume01David is a life-long ocean lover. He grew up working on fishing boats and in high school he spent a semester at sea on a tall ship.  After university he worked as a marine engineer on large commercial vessels in the merchant marine. He has spent four years at sea, crossed every ocean, and set foot on every continent. After working on ships,  David worked at a startup in the clean tech sector where he piloted wave-powered robots  for oceanographic data collection. He currently works as a management consultant solving complex problems.  David is an avid windsurfer and would rather wear a wetsuit than a suit any day of the week.

He holds a BS in Marine Engineering Systems from the US Merchant Marine Academy and an MS in mechanical engineering from the MIT School of Engineering. David also holds an MBA from the MIT Sloan School of Management where he focused on energy and sustainability. He currently resides in Washington, DC with his fiancee and their pet fish Iquid.



David is currently employed as a contractor for the Water Power Technologies Office (WPTO), an entity within the Department of Energy supporting the marine renewable energy industry.  The views and opinions expressed on this blog are his own and do not reflect those of the Department or WPTO.