You know half of this is going to be made up, right?
The quantitative measures require algorithms that are out of scope for large language models.
Unless they involve a mixture of experts.
You really need a human expert going in.
And this will also need to look at supplies, costs, labor, and so on, which vary in real-time.
But if you insist, try insulation, sealing leaks, adding thermostats, upgrading HVAC, installing solar, and replacing appliances.
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