>Solar and wind are disruptive because the cost to add a marginal unit of generation is near zero. Can you elaborate here? Solar and wind are relatively cheap

>Solar and wind are disruptive because the cost to add a marginal unit of generation is near zero. Can you elaborate here? Solar and wind are relatively cheap, and falling, but a long way from a near zero marginal cost. According to a quick Google, the capital-weighted costs of solar, hydro, wind, geothermal and some newer natural gas plants are similar.