Maybe I've made the point too sharply. I am not saying "Don't buy M250's." I am saying, "Don't expect the excess energy produced by the M250's over M215's to be worth as much as the price difference between them, when paired with panels per Enphase's design guidelines."
Solar is a big purchase for most people, maybe the biggest they'll make after a house and a car. I think there is value in identifying the most financially cost-effective package, and once it is known, the relative cost and benefit of the options can be evaluated. $400 for peace of mind could be a bargain.
There is a *lot* of misinformation about cost-effectiveness out there. Some of it can be reduced to a math problem with a solution, but some parts of the decision making will require assumptions and guesses about a future that no one knows. I try to help with the math problem portion of it, the rest is for each of us to decide individually.
Solar is a big purchase for most people, maybe the biggest they'll make after a house and a car. I think there is value in identifying the most financially cost-effective package, and once it is known, the relative cost and benefit of the options can be evaluated. $400 for peace of mind could be a bargain.
There is a *lot* of misinformation about cost-effectiveness out there. Some of it can be reduced to a math problem with a solution, but some parts of the decision making will require assumptions and guesses about a future that no one knows. I try to help with the math problem portion of it, the rest is for each of us to decide individually.
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