Category Archives: Tidalpunk

What is energy democracy?

At first glance, energy democracy is a funny term. Are we worried about a coalition of coal and natural gas blocking amendments to a bill from wind and solar? Is nuclear over in the corner putting forth reasonable proposals while everyone backs away slowly because of rumors regarding her volatile temper?

Solar Farm by Michael Mees via a CC BY 2.0

Solar Farm by Michael Mees via a CC BY 2.0

Energy democracy is actually about bringing self-determination of communities back to energy generation, storage, and distribution. Not that long ago, most of society ran on locally-sourced energy. The bulk of this was in the form of windmills, water wheels, and wood-burning fires. As fossil fuels took the stage during the industrial revolution, energy supply and demand became estranged. Economies of scale for fossil fuel-based energy generation led to the creation of large power plants that supply power over an interconnected grid.

The 21st Century has seen the return of distributed energy sources. While solar and wind get the headlines, small modular reactors (SMRs), in-stream hydro, tidal, geothermal, and other distributed energy sources are showing promise as well. While the growth of these distributed generation technologies is good for decentralized solarpunk communities, it creates a point of friction with the existing centralized power grid. This is why when incumbent utilities do support renewables, they still want to build large, utility-scale projects. Nevada has had the most public battle over net metering in recent years, but many utilities have tried to suppress energy decentralization by pressuring legislators. In states like Virginia, where two companies have a monopoly on 80% of the energy market, it’s easy to see where problems might arise.

panoramic shot of sky

Photo by Pixabay on Pexels.com

There are some technical problems with energy decentralization which stem from the centralized past of the grid. As David Roberts explains at Vox, the grid was designed for one-way power flows from generation to distribution to end user. Solar, wind, and other distributed energy sources upend this model, sending power from the end-of-the-line back into the grid. There are several possible ways to overcome these difficulties ranging from going off-grid completely to piping every single generation source back into one giant grid managed by a central authority. For a solarpunk future, one possible option is the “decentralized, layered-decomposition optimization structure.” In this arrangement, the responsibilities of generation sources are held locally, but communities can still exchange power on an overarching, interconnected grid.

In some communities, such as Boulder, CO, the people have decided to municipalize their energy grid. Putting the grid into public hands makes it easier to align incentives between homeowners with rooftop solar, community-based generation projects, and the needs of all the users on the grid. Utility monopolies have to maximize profit and maintain the status quo. Energy democracy brings the power to the people, who can build a grid that uses distributed generation for a more robust, environmentally friendly, and healthy grid. The most extreme example of calls for energy democracy at the moment is the suggestion of a public takeover of PG&E. For more on areas that are flexing their energy democracy muscles, check out the Institute for Local Self-Reliance’s Community Power Map.

Do you have any energy democracy projects in your area? Let us know how your communities are fighting monopoly power and bringing clean, distributed power to the people.

Advertisements

Tidalpunk: Come Home to the Sea

A picture of a green-blue bay against a blue sky with whispy clouds. Above the bay is a rocky cliff with houses of various colors ascending the hill above it.

Photo by Pixabay on Pexels.com

Many think life on Earth started in the oceans, and while there is scientific debate on that front, there’s no denying that humans have been drawn to the water since before we built the first city on the banks of the Euphrates. With an estimated 80% of the world’s population living within 100 km (~60 mi) of a coastline, it’s no surprise that solarpunk has a sibling that brings this love of the water front and center – tidalpunk.

Tidalpunk takes the environmental consciousness and appropriate technology of solarpunk to the high seas. Sailing ships, autonomous seasteads, and cities flooded by the rising waters of climate change populate visions of a tidalpunk future. I suspect that due to the Moon’s influence on the tides, tidalpunk and lunarpunk will find some interesting synergies.

Return of the Sail

boat classic clouds cruise

Photo by Inge Wallumrød on Pexels.com

The shipping industry currently accounts for 2.3% of carbon emissions, and the industry is targeting a 50% reduction in emissions by 2050. Most cargo ships run on diesel now, but we once sailed the seas using the renewable power of the wind. While having a backup propulsion method available would be prudent, when the wind is blowing, cargo could move without the use of fossil fuels. Low Tech Magazine has written several articles about the potential of bringing back sailing ships as cargo vessels. Our current cargo fleet could even be retrofitted with tethered, kite-like sails.

Seasteading

An artificial island in a rough c-shape. It is covered in grass and has several berths for boats.
Proposed artificial Island in French Polynesia by Blue Frontiers

Seasteading covers a variety of concepts for humans to make their home in the sea. Proponents of seasteading point to overcrowding and a lack of social innovation on land as reasons to move seaward. Some projects that could be considered under this umbrella are Sealand, various underwater habitats, and aircraft carriers.

delta_printer_1-8419da34982ad3af20046088872ca1c7cedbd1d9abd347586fdab267be6a52a1

A member of Project Entropy demonstrating a delta-style 3D printer

Project Entropy is a solarpunk makerspace flotilla with the aim to address plastic waste in the ocean and convert it into useful objects. The self-described micronation is also experimenting with distributed governance while it expands the frontiers of distributed manufacturing. While the Seasteading Institute and Blue Frontiers have interesting visions of the future, Project Entropy is making it real right now. Another project already on the water is the Flipiflopi, a boat built entirely from plastic recovered from the ocean and roadsides in Kenya.

A muli-colored sailboat sits in shallow water just off a white, sandy beach. Many people are on the boat and the shore. A Kenyan flag flies high above the solar panel on the boat.

The Flipiflopi recycled boat

The SeaOrbiter science vessel is one of the most exciting projects happening in the space. Planned as a full-time, ocean-going science vessel, the SeaOrbiter will have on-board laboratories and allow extended observation of the ocean. Parts of the ship will be kept at higher pressure to allow scientists to dive more often than would be possible from a surface vessel due to decompression issues like the bends.

A profile view of the SeaOrbiter science vessel. It has a large mast which pokes 27 m above the waterline. Another 31 m of the vessel are below the waterline. The vessel has various living quarters, laboratories, and is powered by wind and solar.

A profile view of the SeaOrbiter

Flooded Cities

boat near to dock

Photo by Daniel Frank on Pexels.com

Venice is the most well known flooded city in the world, but rising seas will soon give the world a number of similar locales. Even Venice is preparing for rising floodwaters with the MOSE Project, a giant flood gate designed to mitigate the worst tides from the Adriatic. NOAA has built an Interactive Sea Level Rise Map to show what areas will be most impacted by different sea level rise scenarios. In the US, Miami is particularly vulnerable since it’s geology precludes a flood gate or wall system like MOSE.

Where to Start

If tidalpunk sounds like something you’d like to investigate further, here are some resources to check out:

Do you have any experiences with tidalpunk? Let us know below or send us a comment on Sunbeam City. Thanks for coming aboard!