Flywheel Energy Storage · DT-10 kW FEG System
Stored motion. Delivered around the clock.
Dorcasey's system stores input power as motion in a steel flywheel, then returns it through a motor-generator. The DT-10 kW design specifies 9.68 kW of usable output for about six hours.
70.9 kWh
Nameplate DC capacity
9.68 kW
Usable output
6 h
Discharge duration
15,000 rpm
Flywheel speed
DT-10 kW FEG System design figures. A 3 kW prototype has been built and tested.
(a) How it works
The rotor stores the energy and drives the output.
The system avoids a vacuum chamber and magnetic bearings. It is designed to reduce cost and simplify maintenance.
Kick-start
Solar, wind, or grid power drives the permanent-magnet DC motor-generator, spinning a 600 kg alloyed steel flywheel up to 15,000 rpm.
Hold
A clutch decouples the flywheel from its driver so it coasts above the motor's synchronous speed. The design specifies roughly 50 watts of ancillary load, compared with 300–350 watts in the systems assessed in Dorcasey's internal analysis.
Deliver
The motor-generator reverses to produce Direct Current on demand, giving a usable 9.68 kW for about six hours per charge, with DC or single/three-phase AC output points.
(b) Who it is for
Operators paying for diesel and replacing batteries.
Farms
Irrigation pumps, cold storage, and equipment power at sites currently spending $5K–$25K a year on diesel and grid electricity.
Fabrication shops
High intermittent loads at generator-backed shops spending $10K–$40K a year on power.
Small industrial & contractors
Construction, processing, and remote sites spending $15K–$60K a year on mobile or semi-permanent power.
(c) Pre-order interest
First in line when production starts.
The DT-10 kW system is in development. Leave your details and we will contact you when units are available to order. No payment is taken now.
Investors & partners
We are raising to move from prototype to production.
The raise will fund product refinement, independent testing and certification, and preparation for initial manufacturing. Dorcasey is seeking grants, strategic partners, and equity investment.