Check your understanding of Module 4, Unit 4. This quiz contains 15 questions. Select one answer for each question. You may retry the quiz.
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Which statement best defines useful flexibility in a district-heating system?
What is the difference between a flexibility resource and a flexibility service?
Which option is an external signal that can help activate flexibility, rather than a physical flexibility resource?
What does power-to-heat mean in this unit?
Why are usable storage capacity and charge/discharge power both important?
A storage tank has 600 kWh of usable heat and can discharge at 150 kW. Approximately how long can it discharge at that rate before reaching its minimum usable state?
Which storage option is mainly a large lined and covered excavation used for sensible heat storage?
Which statement about building thermal mass as flexibility is most accurate?
Why do lower-temperature district-heating networks usually help solar-thermal integration?
Which pattern is typical of normal solar-thermal operation on a sunny day?
A solar collector field has strong irradiance and high collector temperature, but there is no collector flow and no heat transfer to storage. What is the best first interpretation?
Which monitoring points are especially relevant for a geothermal heat source?
Which situation is a warning sign of poor source-load matching?
Before calling renewable curtailment a fault, what should be checked?
Which statement about advanced or predictive control is correct?
