What are the technological advancements that have made solar power so much more economically viable over the last decade or so?

Question

What are the technological advancements that have made solar power so much more economically viable over the last decade or so?

In: 213

Answer 1

1. Efficiency of the panels has gone up. Watts per square inch. More power out for the same size

2. Price of the panels has gone down due to economic scale.

3. Battery technology has gotten a lot better. SLA to flooded LA to lithium ion to LiPo4. Better power density for the size.

4. Price of the batteries has gone down. (Lithium batteries have dropped hard in the last 3 year)