Mine PRV Bearstream

Industrial turbines replacing pressure valves

Recover energy from Pressure Release Valve (PRV) in mining or industrial facilities using micro turbines

Transition énergétique Quebec Economie Innovation Quebec

Innovative. Disruptive.

Replacing valves by turbines

Recover dissipated energy

Prevent costly downtimes

Save tons of CO2 yearly

Disrupt total cost of ownership

Turbine replacing valves

Typical metrics


recovered energy

Assuming 15kW per valve on average


saved per year

Replacing a diesel generator costing an average of $0.33 / kWh.

500t of CO2

saved per year

Replacing a diesel generator releasing 1 ton of CO2 per MWh.

Select number of valves:

5 valves

Bearstream turbine

Energy recovering turbine

Each pressure release valve dissipates an average 15kW of constant energy. A micro turbine can recover that lost energy at low cost, while reducing downtimes.

Typical pressure limit: 50-100 psi
Typical pipe diameter: 4-8 in
At 100 psi pressure flow: 5-50 l/sec
Dissipated energy: 15 kW / valve

Comparison VS Typical PRV

Bearstream turbine

Typical PRV

Equipment useful life

10 years

1 year

Number of shutdowns over 10 years

Each replacement causes a costly operation shutdown



Equipment cost over 10 years (15 kW)

1 x $35k †

10 x $5k

Average revenue recovered per micro-turbine per year



GHG saved per valve per year



† Government energy transition programs of 50-75% subsidy are available.

Significantly lower maintenance intervention

Plug & play. Low cost. Cleantech. Long life.

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