QUESTIONS AND DETAILED
ANSWERS
How, in most cases, is electricity produced? - correct answer ✔✔Usually some type of
combustion occurs which heats steam to spin a turbine/ generator to create electricity
direct current - correct answer ✔✔Thomas Edison. One way electricity, battery.
alternating current - correct answer ✔✔Nikola Tesla, bidirectional power that can go long
distances making for less investments in large infrastructure because energy could travel further
distances
why did electricity contribute to economic development? - correct answer ✔✔Light during
night time activities essentially extending the day
Nuclear - correct answer ✔✔Static. Thermally driven, through nuclear fission, splitting uranium
atoms.
Slow start up and shut down due to the energy involved in the reaction, always running
How is energy produced with oil and coal? - correct answer ✔✔simply burned the heat warms
steam to turn a turbine then generator to create electricity
Resource potential - correct answer ✔✔theoretical physical potential
energy of resource
technical potential - correct answer ✔✔land use constraints and system performance
, economic potential - correct answer ✔✔technology costs available vs. required revenue for
energy project
market potential - correct answer ✔✔competition, policy implementation, and investor
response
natural gas - correct answer ✔✔Flexible. simple cycle using the heat from combustion
combined cycle - correct answer ✔✔uses heat to spin a turbine and exhaust from the heat to
steam and spin another turbine to generate electricity
What is different about PV Solar than other forms of energy production? - correct answer ✔✔It
doesn't generate steam or have moving parts.
What are the three major components of the grid, and what are their relations to
billing/investment and regulation? - correct answer ✔✔Generation: not regulated for
competitive purposes
Transmission: is regulated by gov. So there aren't a million wires
Distribution: regulated at state level
What are environmental and sustainability impacts of our energy decisions on Extraction,
Generation, Disposal, and Resilience & Security? - correct answer ✔✔Extraction: Pollution
Generation: Combusting releases pollutants, solar takes up fields, wind- aesthetics and birds.
Disposal: Coal ash
Resilience & security: Having one grid can get hacked