What doesn't move, however, is a suspended mass inside the seismograph, called the seismometer. During an earthquake, the seismometer remains still while the case around it moves with the ground shaking. Traditionally, the suspended mass was a pendulum, but most modern seismometers work electromagnetically.
Solar electricity costs about $10 to $12 a watt installed, though you may be eligible for state incentives. Check your utility bill to see your monthly usage. A robust solar electric system will cost about $20,000. You can spend as much money, to receive as much solar electricity, as you feel comfortable with.
Therefore, the upfront cost of the solar panels per watt are Costpanels = $600/75 watts = $8/watt Or, by multiplying numerator and denominator by 1000, Costpanels = $600/75 watts = $8000/kilo-watt. As determined from a survey of current market prices, it costs about $600 to purchase and install a 75 watt panel.herefore, the upfront cost of the solar panels per watt are Costpanels = $600/75 watts = $8/watt Or, by multiplying numerator and denominator by 1000, Costpanels = $600/75 watts = $8000/kilo-watt. As determined from a survey of current market prices, it costs about $600 to purchase and install a 75 watt panel.