Demand-Side Management Strategies Flashcards
7 cards from real CEA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Demand-Side Management Strategies flashcards as text
A utility implements a behavioral DSM program sending customers monthly home energy reports comparing their use to efficient neighbors. This approach is based on:
Answer: Social norm marketing and normative feedback
Home energy reports leverage social norm theory—showing customers how their usage compares to similar efficient neighbors motivates behavioral conservation.
Utility 'decoupling' mechanisms support DSM investment by:
Answer: Separating utility revenue from electricity sales volume so efficiency doesn't reduce profits
Decoupling breaks the link between utility profits and kWh sales, removing the financial disincentive for utilities to promote energy efficiency.
Which factor most significantly increases the 'snap-back' load following direct load control of residential air conditioners?
Answer: Long control event duration exceeding thermal comfort limits
Extended control events allow indoor temperatures to drift beyond comfort thresholds, causing many units to simultaneously restart at full capacity when the event ends.
Under FERC Order 745, demand response resources in wholesale electricity markets must be compensated at:
Answer: The full locational marginal price (LMP) when it is cost-effective
FERC Order 745 requires that demand response resources providing comparable value to generation receive the full LMP when participation is cost-effective for the system.
An energy auditor recommends variable frequency drives (VFDs) on HVAC fans as a DSM measure. The primary benefit of VFDs is:
Answer: Reducing fan speed at part-load conditions to save energy proportional to the cube of speed
Fan power follows the affinity laws—power varies with the cube of speed, so small speed reductions yield large energy savings at part-load conditions.
Which DSM program design element best addresses the 'information barrier' to energy efficiency adoption?
Answer: Energy audits and benchmarking services
Energy audits and benchmarking services provide customers with specific information about their energy use and cost-effective upgrade opportunities, directly addressing the information gap.
In demand-side management planning, 'achievable potential' differs from 'technical potential' because it:
Answer: Accounts for market, behavioral, and program delivery constraints
Achievable potential estimates the DSM savings realistically attainable given real-world market barriers, customer adoption rates, and program delivery limitations.