Condensation on windows is a problem for many homeowners, and it can occur in all types of buildings. Singled-glazed windows are a primary cause of condensation, though many modern day double-glazed windows do condensate. This is usually due to poor manufacturing and inadequate installation.
To put this in context, construction of a 500 MW power plant for the different energy sources would cost around: 1  $1.8 billion for a solar power plant. 2  $1.5 billion for a typical coal plant. 3  $2.6 billion for a coal plant with CCS. 4  $482 million for a natural gas plant.
Solar Panels. The solar panels themselves usually account for about 30% of total costs. Residential solar panels with a combined capacity of 3-8kW typically cost between $4,000-$16,000. The best solar panels are not necessarily the most expensive. Cost per watt ($/W) is a more convenient way of looking at the costs of solar panels. This metric indicates costs relative to electrical power output. The cost of solar panels have decreased significantly over the last decade and are currently selling for under $0.70/W in industrial quantities. For homeowners, this translates to about $1.5/W. Balance of System. Balance of system (BoS) refers to all components of a solar system except the solar panels themselves.