Beacon Power has the first-mover advantage as far as building and testing commercial-grade flywheels. This means that they are focused on developing a product, not on generating revenues or increasing profit margins. Investing at this stage is pure speculation, as they could encounter technical difficulties that push back the expected ship date of their product from this year to next. Uncertainty surrounds this investment, as it is impossible to know how much revenue they will generate once their product is deployed and if they will earn any profits. The best investment decision is to steer clear until more is known about their ability to generate revenue, income, and positive cash flows.