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Big Stone II's demise is not a bad sign for wind, it is the opposite. Now is the opportunity to move ahead to the next economy, not to worry about what we lost with a big polluter. Let's give this gift to our future generations - a better future. Take a deep breath and let's take a look at what the next energy economy will look like. We will move to an entirely non-fossil fuel economy based on solar and wind. We will have 89,000 solar photovoltaic and concentrated solar panels, 1.7 million rooftop PV systems to reduce combustion on most of our houses and perhaps solar water as well. We will have 3.8 million wind turbines worldwide taking up a total area smaller than the size of Manhattan. When the wind doesn't blow in South Dakota, it blows in North Dakota, or Nebraska, or the steppes of Russia. Distributed wind is where we should be headed. And hydro-power can "firm" intermittent wind - we have plenty of dams on the Missouri.

Big Stone II's demise is not a bad sign for wind, it is the opposite. Now is the opportunity to move ahead to the next economy, not to worry about what we lost with a big polluter. Let's give this gift to our future generations - a better future. Take a deep breath and let's take a look at what the next energy economy will look like. We will move to an entirely non-fossil fuel economy based on solar and wind. We will have 89,000 solar photovoltaic and concentrated solar panels, 1.7 million rooftop PV systems to reduce combustion on most of our houses and perhaps solar water as well. We will have 3.8 million wind turbines worldwide taking up a total area smaller than the size of Manhattan. When the wind doesn't blow in South Dakota, it blows in North Dakota, or Nebraska, or the steppes of Russia. Distributed wind is where we should be headed. And hydro-power can "firm" intermittent wind - we have plenty of dams on the Missouri.

The $825 billion economic stimulus package unveiled by Democrats in the U.S. House of Representatives on Thursday contains billions of dollars in tax breaks for renewable energy and spending for energy efficiency and transmission. The legislation, aimed at boosting the recessionary U.S. economy, would provide $20 billion in tax cuts for alternative energy including a multi-year extension of the production tax credit for wind, geothermal, hydro power and bioenergy. The bill also contains tax credits for research and development on energy conservation and efficiency.

Cleantech.com reports that the Irish government has introduced feed-in tariffs and streamlined regulations to encourage construction of small scale renewable energy projects - Ireland pushes for fast action on small-scale renewables. Ireland expects to boost its rural economies with a new long-term feed-in tariff program encouraging consumers to install renewables energy generation projects on homes and farms. The incentives are expected to help with the long-term cost of projects, but the government limited the scope of the incentives in order to push for fast action on the part of consumers. Irish Energy Minister Eamon Ryan established the tariff of €0.19 ($0.26) per kilowatt hour, but the rate only applies for the first 4,000 projects registered during the next three years.The incentive applies to wind, solar, hydro and combined heat-and-power projects.

If I am travelling down an "irrational" road to renewables, as Richard Phillips implies (Letters, 11 September), then I am not alone. Last year, solar PV generation capacity grew by 70% around the world, wind power by 29% and solar hot water increased by 15%. By 2008, renewables represented more than 50% of total added generation capacity in both the US and Europe, ie more new renewables capacity was installed than new capacity for gas, coal, oil, and nuclear combined; with no emissions, no wastes and no security issues to worry about - and no worries about fuel running out, or increasing in price. It's true the energy available from some renewable sources, like wind, varies over time, but we already have to have backup capacity for other plants (including for nuclear plants), which is also used to deal with the daily energy demand peaks. With variable renewables on the grid, these backup plants have to be used a bit more often, adding a small extra cost and, if they are fossil-fuelled, reducing the amount of emissions saved very slightly. But hydro can also be used as backup, and increasingly, so can other types of non-variable renewable source, including biomass and geothermal energy.

You may have seen the TreeHugger interview with Goldman Environmental Prize winner Yu Xiaogang where he talks about hydropower in China and the tradeoff between increasing power supply and the environmental and community concerns of doing so. For some more info on the issues surrounding developing hydropower on the Nu River, including an overview of the traditional, micro and small-scale hydropower usage on the river, check out this video clip from China's Green Beat. Good stuff, with applicability to any number of different types of big-push style projects in the developing world.