Sage Geosystems, Next-Gen Geothermal Source Driven By Earth’s Pressure

From an analytical perspective, EnergySage Geosystems, Next-Gen Geothermal Source Driven By Earth’s PressureByIan Dexter Palmer, Ph

In contrast, , Contributor

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Sagegeosystems (an important development), in light of current trends

Moreover, News reports are available, as well as s

This analysis suggests that ing is an interview with Cindy Taff (something worth watching)

Meanwhile, Sage calls their next-generation geothermal nology “pressure geothermal. ” Can you explain what this means and how it differs from other next-generation geothermal nologies

Pressure geothermal leverages both the Earth’s heat and pressure to generate more power

By using the natural elasticity of the rock, we can bring hot water to the surface without pumps

However, Un traditional apaches, we maintain pressure in the system rather than venting it at the surface, and we hold open fractures with pressure instead of adding bridging materials sand or ppant

The Sage pressure geothermal concept is a huff-and-puff in two synchronized wells

Moreover, Sage’s prietary cycle-based heat recovery apach, adapted from the “huff-and-puff” method in oil and gas, is designed for efficient energy extraction

Each well has its own set of fractures (i. , wells are not connected in the subsurface EGS) and operates in a repeating cycle

In one well, water is injected for 12 hours, expanding the fracture network to ensure full with the hot rock and maximum heat absorption (quite telling)

After a brief soaking period, the cess reverses: the natural pressure and elasticity of the rock push the heated water back to the surface, without the need for pumps

However, Nevertheless, The hot water flows through a heat exchanger to heat a refrigerant, or low-boiling-point working fluid, which drives a turbine to generate electricity

By alternating between wells, Sage enables near-continuous power generation

Additionally, How are the fractures created and how is the water cycled, given current economic conditions

Sage uses their prietary downward gravity fracturing to create the subsurface fracture network

This nique uses a high-density fluid, weighted with heavy minerals barite or hematite, to initiate and pagate fractures using gravity rather than high-pressure pumping

Because the fluid is heavier, it creates fractures at lower surface pressure, making the cess more efficient and controlled

Nevertheless, This apach is similar to methods used for disposing of nu waste

Furthermore, Once the fracture network is established, the high-density fluid is circulated out and replaced with water, which is then cycled to extract heat, as described above (noteworthy indeed)

What reservoir characteristics does the Sage method need to be viable, such as depth, temperature, overpressure, natural fracture permeability

How extensive are these potential locations in the USA (this bears monitoring)

Conversely, For comparison, hot, dry rock permeabilities in Los Alamos and ject Forge have extremely low permeabilities

Conventional geothermal requires a rare combination of three things: hot subsurface temperatures, naturally occurring water (an aquifer), and enough natural permeability to allow the water to flow (noteworthy indeed), given current economic conditions

On the other hand, These conditions typically only exist near volcanic zones, such as those along the Ring of Fire, in today's market environment

Sage’s pressure geothermal apach removes two of those constraints, amid market uncertainty

We don’t rely on natural permeability or existing water – we create our own artificial reservoir and cycle water through it to extract heat

We specifically target low-permeability rock ( 5 hours (remarkable data), given the current landscape

Meanwhile, What advantages does the Sage method have over other methods such as twin-well EGS (Enhanced Geothermal Systems) or closed-loop systems

Furthermore, Compared to EGS, Sage’s apach avoids the need for sophisticated high-temperature directional drilling nologies as the wellbore alignment and spacing are not critical, and it doesn’t require connecting two wells with a fracture network

Sage’s unique subsurface apach, which relies on fractures connected to a single wellbore, will increase our access to superhot geothermal resources as compared to EGS and Closed Loop, as wellbore alignment and spacing are not critical, eliminating the need for sophisticated high-temperature directional drilling equipment

Moreover, Deeper and hotter geothermal can der a 10-fold increase in net power generation, which enables further cost reductions 11 (something worth watching)

I’ve heard that Sage can buy electricity when duction is plentiful, convert it to pressure similar to conventional pumped storage hydropower and later sell it back to the grid when needed

Is this system operational, and will it be cheaper than grid-scale batteries whose cost is falling (which is quite significant), given the current landscape

Additionally, While it's not int to compete with lithium-ion batteries for short durations (< 5 hours), it outperforms them for longer durations, where battery costs and performance decline (remarkable data)

I understand Sage has built a prietary sCO2 turbine, int to be an alternative to ORC turbines used widely today in geothermal applications

Can you explain the advantage, when the nology will be available, and the cost

Sage has successfully designed, built, and load-tested a 3MW totype supercritical CO2 (sCO2) turbine (fascinating analysis)

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