Renewable energy

Two recent articles makes me want to write a general statement on the topic.

• cheaper-cleaner-more-reliable-how-renewables-are-winning-energy-trifecta
• hydrogen

what do we know?

• New solar and wind and a lot cheaper than  old coal stations let alone 'new' ones
• South Australia now has the cheapest and most reliable energy in the wholesale market.
• We should reach 50% of total energy BEFORE 2030
• We could get to 100% by 2050
• The greatest challenge to reliability are the aging coal stations.
• Assuming Hydrogen works out then steel making and other industries will not need coking coal.