27

Question 27

Consider the following:
1. Battery storage
2. Biomass generators
3. Fuel cells
4. Rooftop solar photovoltaic units
How many of the above are considered "Distributed Energy Resources"?

AOptions

A
A) Only one
B
B) Only two
C
C) Only three
D
D) All four

BSolution

All four listed technologies are considered "Distributed Energy Resources" (DERs).

Distributed Energy Resources are small-scale, modular electricity generation or storage technologies located close to the load they serve, typically ranging from a few kilowatts to 50 megawatts. They can be connected to the grid at the distribution level or operate independently.

1. Battery storage: Allows for electricity generated from various sources (including renewables) to be stored and dispatched when needed, often located at homes, businesses, or grid substations.
2. Biomass generators: Small-scale power plants that convert organic matter into electricity, often located near the source of biomass or users.
3. Fuel cells: Devices that convert the chemical energy of a fuel (like hydrogen) into electricity through a chemical reaction, often used in smaller, localized applications or vehicles.
4. Rooftop solar photovoltaic (PV) units: Solar panels installed on individual buildings to generate electricity for local consumption or to feed back into the grid, a classic example of distributed generation.

All these technologies fit the definition of DERs as they are decentralized, relatively small, and can be integrated into the distribution network or directly serve a local load.
Solution Diagram

CStrategy

Understand the core concept of 'Distributed Energy Resources' as decentralized, smaller-scale energy production or storage located near the point of consumption. This contrasts with large, centralized power plants. Any technology that fits this description (renewable or non-renewable) would qualify.

DSyllabus Analysis

Science & Technology: Energy (Renewable Energy, Energy Storage, Distributed Generation). Economy: Energy Infrastructure.

EQuestion Analysis

This is a conceptual question from Science & Technology, specifically energy. It requires understanding the definition of Distributed Energy Resources. All the options fit this definition well. Easy to Medium difficulty.