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The ability of advanced, laser-based sensors to detect moisture, hydrogen sulfide and other contaminants in gases can smooth the way for biogas as a resource for electric utilities. Wouldn’t it be great if some of the expensive Green Power programs you hear about actually worked? Experts and financiers are predicting it will take billions of investment dollars and decades to get any meaningful quantity of energy from alternative resources. Maybe not. Maybe not. One of the oldest and most widespread forms of potential energy – methane gas – promises to give those efforts a sizable boost – right now.