How does a fuel cell turn hydrogen into electricity?
Fuel cells convert chemical energy into electrical energy without combustion via a chemical reaction. Fuel cells combine hydrogen and oxygen converting them into water. The hydrogen used for conversion into electrical current is actually a by-product of manufacturing at Dow. This by-product is now being converted into useful energy.
How does the fuel cell program fit into Dow's overall approach to energy?
Dow recognizes the importance of environmental stewardship and corporate social responsibility. While the fuel cell initiative is important, it is just one component of Dow's emphasis and commitment to sustainable development.
Since hydrogen is a by-product, what were you doing with it before?
Dow uses its by-product hydrogen as fuel for boilers. Dow also sells hydrogen to industrial gas companies for resale to their customers. But using hydrogen to generate electricity is an even more efficient and economically desirable than any other use.
How much energy will the fuel cell power system generate?
The initial fuel cell power system will generate 75 kilowatts of power. This is enough electricity to supply about 60 homes for a year.
Is this a viable commercial transaction or is this just a "demonstration."
This is a commercial transaction that is beneficial to both companies. The agreement between Dow and GM calls for certain commitments by both companies.
How safe is hydrogen?
Hydrogen is fuel, just like gasoline propane or natural gas. As with any fuel the proper training, equipment and care must be in place. Hydrogen is lighter than air, so it will rise. It will not stay close to the ground where it could be a potential hazard. Our site has the proper level of safety controls over our hydrogen.
Will fuel cells eliminate all of Dow's greenhouse gas emissions?
No. But the fuel cells have the potential to reduce the overall amount of emissions.
What is co-generation?
Cogeneration is the production and use of both electrical power and heat. The use of heat in chemical manufacturing processes provides a significant improvement in the efficiency of energy production as compared to that made by a utility company.
Why is GM initiating this program with Dow? Why not just put these in cars?
Development of stationary fuel cells, like the ones at Dow, is a bridge to mass production of fuel cells for vehicles. Projects like the one with Dow provide GM with real life operational experience and expertise. This learning will allow GM to learn and leverage each technological achievement. This work is needed to "ramp-up" production for cars.
