Solar Photovoltaic & Geothermal Systems Quiz

Sunlight is converted directly to electricity using the photovoltaic effect, where light excites electrons in a semiconductor material.

Generation of an electric current in a material when light shines on it.

Usually silicon, a material with conductivity between a conductor and an insulator, crucial for solar cells.

A boundary between p-type and n-type semiconductor materials that's essential for creating the electrical field.

Adding impurities to a semiconductor to control its electrical properties.

Semiconductor material, doped to form p-n junctions, and metal contacts for current collection are layered to form the cell.

Electrodes on the top and bottom of a PV cell to transport the generated current to external circuits.

Applied to maximize light absorption by reflecting less light back.

A protective layer covering the PV cell.

Electric current flowing in one direction.

The ratio of electrical power output to incident solar power.

Electrochemical device converting chemical energy to electricity.

Negative electrode where fuel is oxidized.

Positive electrode where oxygen reacts with protons/electrons.

Fuel cell using polymer electrolyte for proton transport.

Technology harnessing deep earth heat for electricity.

Creating cracks in rock using high-pressure water.

Range of solar light wavelengths.

How perfect the semiconductor material is.

Categories like PEMFC, AFC, MCFC, SOFC, DMFC, PAFC.

Enhanced Geothermal Systems (EGS) that create fractures in hot rock to circulate water and extract heat for electricity generation.

Earthquakes triggered by human activities, like injecting fluids into the ground in geothermal projects.

Geothermal system with steam as the dominant fluid phase, used directly for electricity generation.

Geothermal system with water as the dominant phase; heated water is used for direct heating or binary cycle systems.

Method to create steam by reducing pressure on high-pressure hot water from reservoirs.

Used for low-to-medium temperature geothermal resources that uses a secondary fluid to generate electricity.

System for maximizing geothermal resource use by combining direct use with electricity generation from the same reservoir flow.

HDR systems can be implemented in a wide variety of locations, unlike conventional geothermal systems.

HDR systems can be scaled up or down to suit diverse project requirements; developing larger geothermal projects.

HDR systems can potentially expand geothermal resources; accessing new areas with hot rocks.

Sunlight converts directly to electricity using the photovoltaic effect (light excites electrons in a semiconductor)

Producing electric current when light hits a material

Material's conductivity between a conductor and insulator; crucial for solar cells

Boundary between p-type and n-type semiconductors; creates an electrical field

Layers of semiconductor material, doped junctions, and metal contacts form the cell

Electrodes on the solar cell for current collection

Minimizes light reflection, maximizing light absorption

Protection layer for the solar cell (e.g., glass)

Electric current flowing in only one direction

Ratio of electrical power output to incident solar power

The effectiveness of a solar cell in converting sunlight to electricity, measured as the ratio of electrical output to incident sunlight.

An electrochemical device directly converting chemical fuel energy into electricity.

The negative electrode in a fuel cell where the fuel is oxidized.

The positive electrode in a fuel cell where oxygen reacts with protons and electrons.

A type of fuel cell that uses a proton exchange membrane to let only protons pass through.

A geothermal technology creating and enhancing fractures in hot rocks using water injection to extract heat for electricity.

Creating fractures in rocks by injecting high-pressure water into the ground.

The range of different wavelengths of light in sunlight.

How perfect and pure the semiconductor material is, impacting solar cell performance.

Categories of fuel cells based on their electrolyte, such as PEMFC, AFC, MCFC, SOFC, DMFC, and PAFC.

Uses hydraulic fracturing to create fractures in hot rock to circulate water for heat extraction for electricity generation.

Earthquakes triggered by human activities (e.g., injecting water for HDR)

Geothermal system whose dominant fluid phase is steam, used directly for electricity generation.

Geothermal system whose dominant fluid phase is water, used for heating or binary cycles.

High-pressure hot water is reduced in pressure to create steam; a technique for electricity generation.

Uses a secondary fluid with a lower boiling point than water to generate electricity from low-to-medium temperature resources

Combines direct use and electricity generation in a single system from a geothermal reservoir.

HDR systems can be implemented in various locations, not limited to specific geological settings.

HDR systems can be scaled up or down to suit diverse project requirements, potentially leading to larger projects.

HDR systems potentially expand geothermal resources to areas without conventional reservoirs.