This dimension marks how mature a specific energy technology actually is, experimental, emerging or fully commercial. Wikipedia notes that "in some geographic localities, photovoltaic solar or onshore wind is the cheapest new-build electricity," a sign of just how mature those particular technologies have become. Browsing by maturity separates technologies still emerging from those already fully commercial.
Facts
Comparison
Era of Emergence Maturity
Sources
1. Transformer - Wikipedia
WikipediaFirst alternating current transformers, Yablochkov 1876 induction coilsQuote, First alternating current transformers, Yablochkov 1876 induction coils
In 1876, Russian engineer Pavel Yablochkov invented a lighting system based on a set of induction coils where the primary windings were connected to a source of AC.
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