The body needs a way to get oxygen in and carbon dioxide out, which is through diffusion. When blood returns to your lungs from the body, it has a lot of carbon dioxide and no oxygen. The carbon dioxide concentration is much greater in your blood than the alveoli.
What Will a 10,000 Watt (10 kW) Solar System Cost in Your State in 2017? 10kW solar systems are among the most popular solar energy system sizes in the country, producing enough electricity to power a home with slightly above-average electricity consumption.
The size of a solar PV system is typically described by its solar PV peak output (in Watts or kW) i.e. how much electricity it will produce on a perfectly sunny day, when the sun is at its strongest. So, a 1.5kW solar PV system will produce 1.5kW peak or 1500W peak.