Well, right now, the most ________of the main clean energy sectors is wind because the technologies have basically been ________for 20, 25, 30 years, through bladed turbine. And people know exactly how much it costs to ________ power with that technology. They know where the best geographical locations are to base wind farms, so it's ________ as a mature technology and often an alternative to things like gas and coal. But I think in the long term, solar is the clean energy technology will probably get the ________uptake, both putting plants in places like deserts and in very sunny areas, taking advantage of land that hasn't got a lot of other ________ . But also micro-generation, people putting solar panels on roofs. Once the technology comes down enough, it's not there yet, but once it comes down enough, then it'll be something that people do________ as a way of actually dealing with some of their power needs during the course of the year. And solar panels will have a ________market for that.