Solar energy has come a long way since the first commercial silicon solar cell was purchased by the US in 1953.
In the 1970s, the oil crisis prompted a push for alternative energy, and the US allotted over $8 billion to solar research and development. However, the project was cancelled by President Reagan before it could make a significant impact.
Japan and Germany then stepped in and created a global market for solar technology. Germany's feed-in tariff program, which promised to pay power companies double the market price for renewable energy, made it a no-brainer for developers to build solar projects. As more panels were produced, the cost of generating electricity with solar continued to decrease, making it an unqualified success story.
Working in a way that does not waste a resource.
• Fast forward
Make it play at very high speed so that you get to the end or a later part more quickly.
A hard, black substance that is dug from the earth in pieces, and can be burned to produce heat or power.
Acceptable or good enough.
An important discovery or event that helps to improve a situation.
To control something, usually in order to use its power.
Gradually becoming smaller in size or amount, or fewer in number.
• Know how
Practical knowledge and ability.
Money given as part of the cost of something, to help or encourage it to happen.