How many of the above are considered “Distributed Energy Resources”?

Explanation:

Distributed Energy Resources

Distributed Energy Resources typically refer to small-scale power generation or storage technologies that are located close to where electricity is used (e.g., homes, businesses) and can be connected to the larger electricity grid. They are often renewable, but not always.

Now, let’s consider each option:

1. Battery storage: This is definitely a DER. It can store energy and provide it when needed, often used in conjunction with other renewable sources.

2. Biomass generators: These are also considered DERs. They generate electricity from organic materials and can be installed at various scales, including small-scale local installations.

3. Fuel cells: Fuel cells are another type of DER. They convert chemical energy into electrical energy and can be used in various settings, from residential to commercial.

4. Rooftop solar photovoltaic units: These are a classic example of DERs. They generate electricity at the point of consumption and can feed excess energy back into the grid.

Therefore, the correct answer is: (d) All four

What Are Distributed Energy Resources (DERs), and How Do They Work? – EV Charging Summit Blog