What You Need for a Fuel Cell Powered Home

Most of the big players in the USA who were initially planning on providing fuel cells for residential homes have either gone out of business or shifted to selling products for Telecom backup.  It's simply easier and more cost effective for them to sell thousands of units to a single customer who has established maintenance infrastructure than to sell a single unit to 1,000 individuals who may not be as rigorous on installation and maintenance.  This means that if you are a single home who wants … [Read more...]

Can I Purify Hydrogen from my HHO with a Metal Hydride?

We occasionally get questions from people wanting to know if they can use a Metal Hydride (MH) to purify the Hydrogen from an HHO generator, so I thought I would post our response here:No Why? Putting HHO into a metal hydride container should not be done.  Aside from the fact that it would be extremely unsafe to put HHO gas in a chamber with a cataylst (e.g. MH) since it will cause it to burn/explode, both Oxygen and … [Read more...]

Does FuelCellsEtc Provide Hydrogen Generators (or HHO) for Cars?

The short answer is no, we do not.  At this time we do not have any kits or systems designed to generate Hydrogen on-board for vehicles.  However, a quick Google search for HHOs brings up numerous kits and system suppliers. However if you are looking in to building an HHO generator yourself, we do recommend taking a look at our Electrolyzer Membrane Electrode Assemblies (EZ MEAs). Our EZ MEAs are very efficient (far more efficient than a standard SS metal electrode) but certainly … [Read more...]

What Gas Diffusion Layer (GDL) do I use for a Hydrogen Generator (Electrolyzer)?

We've spoken already about Gas Diffusion Layer (GDL) selection for a Fuel Cell; today we will cover some GDL considerations for Electrolyzers.The Hydrogen side (Cathode) of an Electrolyzer (EZ) can be almost any gas diffusion layer GDL (or even no GDL) that you would like and that fits your own mechanical design.  This can be common GDL materials like Toray Paper, Sigracet, Freudenberg, AvCarb, etc.  The Catalyst layer can either be applied to the membrane (as in a 3-layer or Catalyst Coated … [Read more...]

What Nafion Membrane Thickness is Right for an Electrolyzer / Hydrogen Generation?

Nafion membranes come in many different thickness and types.  How do you know which to choose when designing an electrolyzer (hydrogen generator)?Choosing the proper thickness depends primarily on the differential pressure you expect across the membrane (i.e. what pressure you will be generating the hydrogen at vs. the oxygen), the type of support the membrane will have, and the operating lifetime (both hours and on/off cycles). Our Standard … [Read more...]

How Much Hydrogen (or Oxygen) Will my Electrolyzer Make?

There are a lot of design considerations that go into an electrolyzer that will dictate what pressure they can operate at, their efficiency, safety, etc.  Today I will let you worry about all the mechanical design and talk a bit about the principles behind the electrolyzer and what this means to you (the designer).  Everything below applies primarily to PEM water electrolysis, but much of it may apply to other electrolyzer types as well.  If you want to skip the explanation, you … [Read more...]