Canada W0rking on Worlds largest Geothermal Lagoon

Geothermal efforts

Canada Is Working On the World’s Largest Geothermal Solar Lagoon

By Adrianna Nine on September 8, 2022 at 9:31 am in  ExtremeTech

Petite-Rivière-Saint-François has never been considered much of a tourist destination. The tiny Quebec town is typically regarded as a pass-through municipality on the way to Canada’s Charlevoix region, an area known for its vast greenery, architecture, skiing, and arts scene. Soon, however, that’s going to change. In just a couple of years, Petite-Rivière will be home to geoLAGOON, the world’s largest geothermal solar lagoon.

If you’re thinking the term “geothermal solar lagoon” looks at first like a jumble of buzzwords, you’re not the only one. But each aspect of the self-sufficient, environmentally-friendly destination is carefully planned. The center will be a large, open-air lagoon heated to 100.4 F (38 C) year-round. The heat will come from an “energy ecosystem” consisting of solar, air, and biomass resources, as well as built-in geothermal equipment. Under the lagoon will sit a thermal reservoir heated to 150 F (70 C) by both solar and geothermal energy.  .... ' 

Machine Learning and Earthquake Data

Been following this thread for sometime.  Been testing the CA use of local earthquake warning systems.   Actual predictive methods seem to be lagging here.  But the basic idea is very good.  Here aimed at detecting geothermal resources.

Machine Learning Picks Out Hidden Vibrations From Earthquake Data
MIT News
Jennifer Chu

Massachusetts Institute of Technology (MIT) researchers trained a convolutional neural network (CNN) with machine learning to identify low-frequency seismic vibrations in earthquake data. The researchers trained the network using the Marmousi model, a two-dimensional geophysical simulation of geological seismic-wave propagation. When presented with high-frequency seismic waves produced from a new simulated earthquake, the CNN could mimic the physics of wave propagation and accurately calculate the quake's hidden low-frequency waves. MIT's Laurent Demanet said the goal is to be able to use those low-frequency waves to map the Earth’s internal structures "and be able to say, for instance, 'this is exactly what it looks like underneath Iceland, so now you know where to explore for geothermal sources.'"

GeoThermal Batteries

Never hear of this specifically, but makes sense.

A Novel Thermal Battery Promises Green Power Around the Clock

Japanese scientists have developed a thermal battery that converts heat into electricity when buried in a geothermal zone   In IEEE Spectrum By John Boyd

You can fry an egg on the ground in Las Vegas in August, but try that in Iceland or Alaska and you'll just end up with the stuff on your face—unless you know how to tap into the Earth's vast reservoirs of geothermal energy. 

Researchers at the Tokyo Institute of Technology have developed a new kind of battery that can reliably generate electric power from heat in environments with temperatures ranging from 60 degrees C to 100 degrees C—which is low enough to mimic geothermal heat.

In an earlier experiment, the researchers developed sensitized thermal cells (STCs) that employed dye-sensitized solar cells to convert light into electric power. In their latest advance, team leader Sachiko Matsushita, an associate professor at Tokyo Tech, explained that they replaced the dye with a semiconductor to enable the cells to operate using heat instead of light.

Several methods for converting heat into electric power already exist, including redox batteries that employ the flow of hot and cold chemical liquids to create electricity, and thermoelectric batteries that use the Seebeck effect to generate electricity when a temperature gradient is applied along a conductor.

But Matsushita points out that whereas the STC battery can literally be buried in the ground and work as is, the other devices would face major physical and operational issues if required to operate in such a way.  .... "