Summarize the article in one sentence (less than 10 words).
The article discusses the challenges of using renewable energy sources and the potential solutions.
Renewable energy challenges and potential solutions discussed.
Complete the following task based on the instruction and optional input provided.### Instruction:
Summarize the article in one sentence (less than 10 words).

### Input:
The article discusses the challenges of using renewable energy sources and the potential solutions.

### Output:
Renewable energy challenges and potential solutions discussed.