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Build your own working mini hydroelectric generator from scratch

Here’s how you can create your own energy from running water with this handy guide.

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Are you looking for inexpensive ways to generate your own electricity at home? Do you have room for a large water tank?

So why not consider creating your own on-demand hydroelectric micro-generator? Follow this simple guide to find out how.

Source: Great Inventions/YouTube

As you can imagine, you will need some tools and materials before you begin.

Materials and equipment needed

With all your gear in hand, it’s time to get started on this awesome little build.

Step 1: Make the water tank

The first step is to take your lengths of salvaged lumber and bricks and model the footprint of the main water tank or silo. You can make it any shape you want and any size you want, but watch the video for details if you want to create this one faithfully.

Once done, line the base with a sacrificial plastic sheet or cling film. Once ready, mix your cement as needed and begin pouring into the mold for the base as needed. Level and compact as you go.

diy hydrogen base
Source: Great Inventions/YouTube

With a layer for the base of the tank laid, add metal reinforcements using lengths of wire or steel rod. With that done, start building the tank walls using more bricks.

Cement the rows of bricks together using cement as you go and be sure to add a few lengths of plastic tubing to siphon water off later. Keep adding rows of bricks until the tank is as big as you want it to be.

diy hydrogen tank
Source: Great Inventions/YouTube

Don’t worry too much about the perfect pointing as you will now be skimming the entire tank with cement, so do that.

Let the cement harden.

Step 2: Craft the hydroelectric generator

While the tank cement hardens, we can now focus on the commercial end of the device – the actual generator.

First, take your old dynamo and strip it down to the essentials needed – the induction coil and rod. Next, attach a propeller to the main shaft using washers and nuts as needed. Of course, you can also use an old DC motor for the same purpose.

Depending on what you are using, you may also need to install an AC/DC converter.

make hydrogen yourself
Source: Great Inventions/YouTube

With that done, take your length of uPVC pipe, cut it to size and also cut a series of openings at each end as shown in the video. This will serve to drive the water against the propeller and spin the generator to produce power before being forced out of the pipe.

Install the propeller and dynamo in the pipe as needed.

With that done, take your lengths of small diameter plastic pipe and cut them to the length you need. Gently heat the pipes, bend them as needed to fit the main hydrogenerator pipe and connect them to the main storage tank pipes.

Step 3: finish building

Once the main water tank is completely hardened, remove the base mold and place the tank where it will be needed. With that done, add a series of pipe valves to the outlet pipes.

With that done, install the elbow pipes you made earlier at the other end of the valves. Install the other end of the hoses into the main generator hose as shown.

diy hydrogen install pipes
Source: Great Inventions/YouTube

Glue or wire the pieces together to hold them firmly in place. If necessary, also support the base of the main pipe with an old brick or cinder block.

Once done, connect the wires from the motor/dynamo to an electrical outlet/extender and attach them to the hydrogenerator in a convenient location (and away from the water supply).

diy hydrogen power outlet
Source: Great Inventions/YouTube

With that done, you can now fill the main water tank with water. Fill to top of reservoir as needed. Once complete, your DIY generator is now ready to start.

Just open the valves, let the water run, and watch your generator start producing juice. Now you can plug in a few small electrical devices and watch them magically come to life.

If you enjoyed this little build, maybe you like to make other forms of home electric generators? How about, for example, your own steam generator built from scrap?

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