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This is an incredibly lazy blog article. The author hasn't even attempted to do any calculations he's just contemplating someone else doing them. I don't thin
by adaml_623 13y ago
This is an incredibly lazy blog article. The author hasn't even attempted to do any calculations he's just contemplating someone else doing them.
I don't think he has thought the problem through or researched it at all. Reading the wiki article ( http://en.wikipedia.org/wiki/Photovoltaic_power_station#Solar_array_arrangements http://en.wikipedia.org/wiki/Photovoltaic_power_station#Sola... ) shows that people already make the calculations of whether to pay for sun tracking which gets you an extra 30% energy. Obviously at some point the tracking mechanism will cost more than 30% of the energy produced. That's the cut off. And at that point the arrays installed will be fixed non tracking arrays tilted towards the equator at an angle calculated to get the maximum energy during the year.
- xxgreg 13y ago"get the maximum energy during the year." There are already countries where the cost of electricity from PV is below the cost of electricity bought from the grid. In these countries every Watt you generate yourself saves you money. These users don't want to get the maximum amount of energy per year, they want to minimize the amount of electricity bought from the grid. They want to better match the generation profile of solar to their load profile. i.e. spread generation across the day - instead of getting it in one big peak in the middle of the day. To do this - it is already common to install east and west facing PV. But I agree lazy journalism - he's speculating about a future which has already happened in some places.