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Right on Antonio. Photovoltaics is a poor investment if ones worried about their energy bill. On the other hand, if we have the means, investing in photovoltaics is a worthy contribution to resolving the energy crisis. My hat's off to those folks.
Luke is making his own contribution. It won't pay off for him for quite a while but he's working on something that may eventually have a major impact on our hobby.
If we look to our normal installations, attention to proper engineering techniques can save money and lower energy costs right now.
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