An upbeat report from a stakeholder: utility solar in the US is doing fine and reaching grid parity, if one includes tax incentives, scheduled to last until 2021. But reduced tax benefits maybe compensated by continued price decline of large scale solar installations. Several large utility scale PV power stations came online this year, such as the 550-megawatt (MW) Topaz Solar plant in San Luis Obispo County, California and the 550MW Desert Sunlight plant in Desert Center, California.
The first reported contract for solar power under five cents per kilowatt-hour (kWh) occurred in 2014: Austin Energy’s 25-year power purchase agreement (PPA) with SunEdison for 150 MW of solar power. The trend continued in 2015, when Nevada Energy secured a 4.6 cent per kWh PPA with SunPower.
Editor: articles like this explain why we have lost interest a little in energy problems, because the initial fear, which prompted us to start this blog nearly four years ago, namely a world running out of energy fast, has been pushed to the background and replaced with worries about the state of the economy and international finance, the destabilizing refugee crises and the threat of war.
Personally, it costed merely 3000 euro to have a solar installation on the roof that will annually produce almost twice as much electricity as needed for the next 25-30 years.
Now that utility solar has reached grid parity, the only remaining energy related problem is storage, to overcome daily and most important seasonal demand and supply fluctuations. Potential solutions: pumped hydro and perhaps fuel production from electricity. But there is little doubt that a 100% renewable energy base is feasible within a few decades.
[blogs.edf.org] – A Sunny Future for Utility-Scale Solar