CEA Renewable Energy Technologies 2

Question 1

What is the typical capacity factor range for utility-scale onshore wind farms in the US?

Accepted Answer

25–45%

Answer

Onshore wind farms in the US typically achieve capacity factors of 25–45%, depending on site wind resources.

Question 2

Which component in a concentrating solar power (CSP) plant stores thermal energy for use after sunset?

Accepted Answer

Molten salt storage tank

Answer

Molten salt thermal energy storage allows CSP plants to generate electricity hours after the sun sets.

Question 3

In a photovoltaic system, what is the primary function of the maximum power point tracker (MPPT)?

Accepted Answer

Optimize panel output as conditions change

Answer

An MPPT continuously adjusts the electrical operating point to extract maximum power from PV panels under varying irradiance and temperature.

Question 4

Which offshore wind foundation type is most suitable for water depths exceeding 60 meters?

Accepted Answer

Floating semi-submersible

Answer

Floating semi-submersible platforms are used in deep water (>60 m) where fixed-bottom foundations become uneconomical.

Question 5

What does the term 'perovskite' refer to in the context of next-generation solar cells?

Accepted Answer

A light-absorbing material with ABX3 crystal structure

Answer

Perovskite solar cells use a material with ABX3 crystal structure that efficiently absorbs sunlight and has shown rapid efficiency gains.

(CEA) Certified Energy Analyst Practice Test