I don't think fossil fuels will be economical for much longer. Per area, solar panels are cheaper than window glass. Costs are now down to $2 per watt. A decade

I don't think fossil fuels will be economical for much longer. Per area, solar panels are cheaper than window glass. Costs are now down to $2 per watt. A decade ago it was $7 per watt. Lithium batteries are 1/10th the price they were in 2010. These trends seem to be continuing, and faster than experts project. For example: in 2015 a study looked at past estimates of battery prices versus observed prices.[1] They found that analysts were consistently pessimistic about cost reductions. They tried to correct for this pessimism and made the following prediction: > ...battery pack costs may in some cases be as low as US$300 per kilowatt-hour today, and could reach US$200 by 2020. This cost development is notably cheaper and faster decreasing than I and many others expected. The actual cost in 2020 was $137 per kWh.[2] 1. https://www.weforum.org/agenda/2015/04/will-falling-battery-prices-speed-the-transition-to-cleaner-energy/ https://www.weforum.org/agenda/2015/04/will-falling-battery-... 2. https://www.statista.com/statistics/883118/global-lithium-ion-battery-pack-costs/ https://www.statista.com/statistics/883118/global-lithium-io...