The variety of life on Earth, its biological diversity is commonly referred to as biodiversity. The number of
species of plants, animals, and microorganisms, the enormous diversity of genes in these species, the
different ecosystems on the planet, such as
CHAPTER 9 & 10
1. Using a BP 5170 photovoltaic module, how many modules in what
arrangement would be necessary to provide 144 V and 2 kW at rated
V = 144V
P = 2KW
No. of Cell = 2000W/170 = 11.76
ET4580: GREEN ENERGY TECHNOLOGY
1. A 60-ft long by 25-ft wide house has mostly glass on one side. Sketch
the house orientation necessary to take advantage of passive solar
principles. Be sure to indicate all directions (N, S,
Since the beginning of renewable energy there has been a resistance against it. Most of the time
we havent had the technology to have renewable energy sustain human life. As we move
forward in our life and as technology grows the ability to have better me
1. A vehicle is a hybrid if it utilizes more than one form of onboard energy to achieve propulsion. In
practice, that means a hybrid will have a traditional internal-combustion engine and a fuel tank,
as well as one or more electric motors a
One of the biggest things that affect us is the drought. We all know that the drought that we are going
through is one of the worst we have seen. So I decided to the Sacramento Bee as my local source and
NBC new as my national source
1. A fuel cell is a device that generates electricity by a chemical reaction. Every fuel cell has two
electrodes, one positive and one negative, called, respectively, the anode and cathode. The
reactions that produce electricity t
1. What is biofuel?
a. biofuel intended as a substitute for diesel.
2. List 3 different biofuels. Write a short description of each
a. Bioalcohol: Starches from wheat, corn, sugar cane, molasses, potatoes, other fruits
Chapter 1. Review questions (homework1)
What is a quad?
Quad is energy unit, 1 quad = 1015 Btu.
What is the difference between energy and power?
Energy : An ability of working in terms of physics. N*m, J.
Power : The rate of energy usage or t