When we talk about how much solar panels cost, the standard measure is in dollars per watt. The electricity that we buy from the grid is generally priced in dollars per kiloWatt hour. Solar panels generate at their full potential for about 5 hours per day. The average household pays for about 10,000 kWh per year. That is roughly equal to 1140 Watts 24/7 all year. If solar panels can only power for 5 hours per day (check here for Sun hours per day in your area) you need about 5000 watts worth of solar panels to meet average consumption needs.
Solar panels are presently available wholesale at a minimum of $3 per Watt. That means the cost of the panels alone will be $15,000.
I don’t have that kind of money burning a whole in my pocket, do you? There are lots of other less capital intensive ways to take advantage of solar power. You can build your own closed system that uses this alternative power for one of your needs. A small solar panel setup could easily power an LED lighting system. You could save some money by building a DC lighting system that wouldn’t require an inverter. Your laptop uses about 60 Watts. You should be able to build your own solar panels to power a laptop and some DC powered peripherals for a few hundred dollars.
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