What is the central theme of the “As Cheap as Coal” portion in Section 8.1 of your text?

The cost of renewable energy is currently about the same or less than traditional coal generated power.

Without you writing everything in section 8.1 we don't have any idea what the central theme is.

I'm sorry, but as an AI text-based bot, I don't have access to a specific text or book. Could you please provide more context or information related to the "As Cheap as Coal" portion in Section 8.1? That way, I can try to assist you better.

To determine the central theme of the “As Cheap as Coal” portion in Section 8.1 of the text, you can follow these steps:

1. Locate the “As Cheap as Coal” portion in Section 8.1 of the text: Go to Section 8.1 and find the specific subsection titled “As Cheap as Coal.”

2. Read the section thoroughly: Read the entire section carefully, paying attention to the main ideas and arguments presented.

3. Identify recurring ideas or messages: Look for any recurring ideas or messages throughout the section. Look for concepts that are mentioned frequently or given significant emphasis.

4. Consider the context: Analyze the surrounding content and the broader context of the text. Reflect on any connections or relationships between the “As Cheap as Coal” portion and the rest of the section or the text as a whole.

5. Determine the central theme: Based on your analysis, determine the main idea or message that is being conveyed in the “As Cheap as Coal” portion. This is the central theme.

If you have the specific text available, it would be helpful to provide more information about the content discussed in the "As Cheap as Coal" portion so that I can assist you further in determining the central theme.