Not a skeptic but a realist. Your observations are somewhat accurate but lack cost estimates. They also neglect to address the area of personal transportation. 
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Given that costs of solar cells have decreased from $76.67/watt to $0.26/watt. how exactly will the trend accelerate?  It's already deceased by over 99%. In any event cell costs are only one factor. Labor and land are expensive in Hawaii. 
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Given your antipathy for development what is your position on siteing microgrids? The BANANA mindset will mitigate against optimal siteing and create a need for a myriad of mini distribution grids which will further arouse your constituency. 
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Finally, taxing carbon will further increase the costs levied on ratepayers and drivers. It will be interesting to observe the reaction of locals who habitually complain about the cost of living in Hawaii when they are impacted by a carbon tax.

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