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Solar Noon correct answers The time of day where the Sun is directly overhead Azimuth correct answers The direction that your solar panel is oriented. Generally south facing for the norther lattitudes such as the US semiconductor correct answers In a photovoltaic device, the material that rea...

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  • August 28, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • Solar Energy |
  • Solar Energy |

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Solar Energy || with A+ Guaranteed Solutions.
Solar Noon correct answers The time of day where the Sun is directly overhead

Azimuth correct answers The direction that your solar panel is oriented. Generally south facing
for the norther lattitudes such as the US

semiconductor correct answers In a photovoltaic device, the material that readily absorbs
photons to generate charge carriers (free electrons or holes).

AC correct answers See alternating current.

ambient temperature correct answers The temperature of the surrounding area.

ampere (amp) correct answers A unit of electrical current or rate of flow of electrons. One volt
across one ohm of resistance causes a current flow of one ampere.

ampere-hour (Ah/AH) correct answers A measure of the flow of current (in amperes) over one
hour; used to measure battery capacity.

balance of system correct answers Represents all components and costs other than the
photovoltaic modules/array. It includes design costs, land, site preparation, system installation,
support structures, power conditioning, operation and maintenance costs, indirect storage, and
related costs.

base load correct answers The average amount of electric power that a utility must supply in any
period.

battery correct answers Two or more electrochemical cells enclosed in a container and
electrically interconnected in an appropriate series/parallel arrangement to provide the required
operating voltage and current levels. Under common usage, the term battery also applies to a
single cell if it constitutes the entire electrochemical storage system.

battery capacity correct answers The maximum total electrical charge, expressed in ampere-
hours, which a battery can deliver to a load under a specific set of conditions.

battery energy capacity correct answers The total energy available, expressed in watt-hours
(kilowatt-hours), which can be withdrawn from a fully charged cell or battery. The energy
capacity of a given cell varies with temperature, rate, age, and cut-off voltage. This term is more
common to system designers than it is to the battery industry where capacity usually refers to
ampere-hours.

battery life correct answers The period during which a cell or battery is capable of operating
above a specified capacity or efficiency performance level.

, British thermal unit (Btu) correct answers The amount of heat required to raise the temperature
of one pound of water one degree Fahrenheit; equal to 252 calories.

charge controller correct answers A component of a photovoltaic system that controls the flow of
current to and from the battery to protect it from over-charge and over-discharge.

concentrating solar power (CSP) correct answers A solar technology that use mirrors to reflect
and concentrate sunlight onto receivers that convert solar energy to heat. This thermal energy is
then used to produce electricity with a steam turbine or heat engine driving a generator.

concentrator correct answers A photovoltaic module, which includes optical components such as
lenses (Fresnel lens) to direct and concentrate sunlight onto a solar cell of smaller area. Most
concentrator arrays must directly face or track the sun. They can increase the power flux of
sunlight hundreds of times.

conductor correct answers The material through which electricity is transmitted, such as an
electrical wire, or transmission or distribution line.

converter correct answers A unit that converts a direct current (dc) voltage to another dc voltage.

DC correct answers See direct current.

DC-to-DC converter correct answers Electronic circuit to convert direct current voltages (e.g.,
photovoltaic module voltage) into other levels (e.g., load voltage). Can be part of a maximum
power point tracker.

deep-cycle battery correct answers A battery with large plates that can withstand many
discharges to a low state-of-charge.

deep discharge correct answers Discharging a battery to 20% or less of its full charge capacity.

depth of discharge (DOD) correct answers The ampere-hours removed from a fully charged cell
or battery, expressed as a percentage of rated capacity.

direct current (DC) correct answers A type of electricity transmission and distribution by which
electricity flows in one direction through the conductor, usually relatively low voltage and high
current. To be used for typical 120 volt or 220 volt household appliances, DC must be converted
to alternating current, its opposite.

discharge correct answers The withdrawal of electrical energy from a battery.

discharge rate correct answers The rate, usually expressed in amperes or time, at which electrical
current is taken from the battery.

electric current correct answers The flow of electrical energy (electricity) in a conductor,
measured in amperes.

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