ERAC Renewable Energy Systems & Technologies Flashcards
6 cards from real ERAC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ERAC Renewable Energy Systems & Technologies flashcards as text
What is the primary function of a solar inverter in a photovoltaic system?
Answer: To convert DC electricity generated by solar panels into AC electricity for building use
A solar inverter converts the direct current (DC) output of photovoltaic panels into alternating current (AC) that can be used by building systems or exported to the utility grid.
In biomass energy systems, what is 'feedstock' risk?
Answer: Uncertainty in the availability, cost, or quality of the biological material used as fuel
Feedstock risk refers to uncertainty in the reliable supply, cost, and quality consistency of the biological materials (wood chips, agricultural residues, etc.) used to fuel a biomass energy system.
What does 'behind-the-meter' (BTM) mean in the context of distributed energy resources?
Answer: Generation or storage assets located on the customer's side of the utility meter
Behind-the-meter (BTM) refers to distributed energy resources located on the customer's side of the utility meter, allowing the customer to use generated or stored electricity before it reaches the grid.
Which US program provides voluntary certification for green power through RECs and helps organizations achieve renewable energy goals?
Answer: EPA Green Power Partnership
The EPA Green Power Partnership is a voluntary program that helps organizations achieve their renewable energy goals by providing guidance on green power procurement strategies, including REC purchases.
In a renewable energy risk assessment, what does 'curtailment risk' refer to?
Answer: The risk that a grid operator requires a renewable project to reduce or stop output due to grid constraints
Curtailment risk is the risk that a grid operator instructs a renewable energy facility to reduce or cease output due to transmission constraints or oversupply conditions, directly reducing revenue.
What distinguishes a 'community solar' project from a traditional on-site renewable energy installation?
Answer: Community solar is a shared off-site facility where multiple subscribers receive bill credits for their portion of generation
Community solar (also called shared solar or solar gardens) allows multiple subscribers to receive utility bill credits for their proportional share of a shared off-site solar facility, enabling participation without on-site installation.