Energy Systems & Design

Energy Systems & Design has been producing the best micro hydro electric machines and components since 1980.We make alternative energy equipment that converts energy from moving water into electricity. We invented and manufacture the venerable Stream Engine. This amazing micro hydro machine is powering sites all over the world, improving peoples lives and doing it renewably.

Company details

745 Waterford Rd , Waterford, NB , E4E 5B4 New Brunsw Canada

Locations Served

Business Type:
Industry Type:
Energy - Hydro Power
Market Focus:
Globally (various continents)
Year Founded:


“Home of the Stream Engine™”

Back in the 1970′s Paul needed power for his off grid house. He made a car alternator type micro hydro machine and being the inventive person he is, cast the wheels for it.  These were pelton wheels and then turgo wheels. Through many design changes some very efficient wheels were produced. For a few years he sold just wheels to other do it yourself hydro machine builders.  As Paul’s  hydro machine got improved and was good at producing power, it was obvious that if anyone had a suitable water source, a micro hydro generating machine would improve their lives. His local fame at making his own power earned him the nickname Powerhouse Paul. After a couple years he started selling complete machines and Energy Systems and Design was in business.

Energy Systems has been producing micro-hydroelectric components since 1980.  ESD has invented and manufactured the most efficient, innovative and best quality hydro machines for 30 years. We live hydro. Our machines are carefully made by actual hydro enthusiasts. We use only the best quality components and to insure everything is the best quality we do most everything in our own shop. We even make the wax castings for the precision cast bronze wheels.

We do not do any fancy marketing or sell through dealers or distributors which would only drive up costs. This way you can be sure all the value is in the machine.

If you want the best micro hydro  machines, and advice from people who know the machines as no one else could because they make them, ESD is the place to call.

We are here to help our customers. And to do our part to help people power their lives with more renewable resources.

Buy directly from the inventor and manufacturer.

The Stream Engine and LH1000 are designed for use in battery-based power systems, with electricity generated at a steady rate, and stored in batteries for later use at higher rates than is generated. During times of low demand power is stored. An inverter is used when AC power is desired.

The Stream Engine can produce up to 2 kilowatts at a high head site. The LH1000 can produce up to 1 kilowatt at 10 feet of head with 1000 gallons per minute. These machines make use of a natural source of running water. More than one machine can be used if there is enough water and more power is desired. The water is ‘borrowed’ and immediately returned to the water source it came from.

Water from a stream is channelled into a pipeline to gain enough head (the vertical distance the water falls) to power the system. The Stream Engine operates at heads of about 3 metres (10 feet) and upward. The water passes through a nozzle, where it accelerates, strikes the turbine wheel, and turns the generator shaft. Up to 4 nozzles can be installed on one machine. The amount of power produced depends on the head and flow available at the site.

A general formula for Stream Engine WATTS OF OUTPUT head(in feet) times flow (in gallons per minute) divided by 10 in metric head (in meters) times flow (in liters per second) times 5.

The LH1000 operates at heads up to 3 metres (10 feet). The water passes through a guide vane assembly and then turns the propeller which is connected to the generator, then exits through a draft tube which is a tapered pipe which is immersed in the tailwater. The LH needs a lot of water to operate, up to 1000 gallons per minute.

The PM Field Alternator

The ES & D alternator uses sixteen strong magnets embedded in a top plate which is spun by the runner. The twelve stator windings are stationary. Electricity is generated by passing the spinning magnets over the stator windings. The output is determined by the right mixture of rpm, configuration of the stator windings, and the distance between the magnetic field and the stator.

The field to stator distance is adjusted by a bolt within a bolt arrangement, which lowers or raises the spinning magnets. The stator windings can be configured into parallel, series, Delta or Wye wiring. The windings terminate on three studs for easy reconfiguration. The studs are before the rectifier, so it’s easy to take the output as a higher voltage three phase ac for long transmission lines.

This may be a little confusing, but we will provide the machine with the right configuration for your site. The beauty of this alternator is in its high efficiency and lack of moving parts. Since no electricity is required to energize the field, every watt generated goes towards output. There are two ball type #6203 bearings supporting the shaft , the lower bearing is stainless. We suggest changing the bearings yearly. They should be available from all bearing distributors. The machine can be disassembled for bearing replacement in about 15 minutes on a workbench. A bearing press and properly sized mandrel are suggested for removing and replacing the bearings. Any machine shop can do this very quickly.

Typically, these systems operate at 12, 24, or 48 volts, with re-connectable wiring which allows the user to install a standard turbine at most sites.

Custom windings are also available which can produce high voltage (120, 240) at any site. contact us