Distributed energy resources

Definition

Distributed energy resources (DER) refer to small-scale energy generation or storage technologies that are located close to the point of use, rather than centralized generation facilities. This concept includes renewable energy sources like solar panels and wind turbines, as well as energy storage systems such as batteries. DER enhances the resilience of the energy grid, promotes the integration of renewables, and can reduce transmission losses while offering consumers more control over their energy usage.

5 Must Know Facts For Your Next Test

1. Distributed energy resources can include renewable sources such as solar, wind, and biomass, as well as non-renewable technologies like natural gas generators and battery storage systems.
2. The growth of DER has been driven by advancements in technology, decreasing costs of renewable energy systems, and supportive policies aimed at reducing carbon emissions.
3. DER can help stabilize the grid by providing local energy generation during peak demand periods, thus reducing the need for expensive peaker plants.
4. Integration of distributed energy resources into the existing power infrastructure often requires upgrades to grid systems, including smart grid technologies that enable better management of decentralized energy flows.
5. With increasing adoption of electric vehicles (EVs), DER can also play a role in charging infrastructure and vehicle-to-grid (V2G) technologies, allowing EVs to serve as additional storage resources.

Review Questions

• How do distributed energy resources enhance the resilience of the energy grid?
  • Distributed energy resources enhance the resilience of the energy grid by decentralizing power generation. This means that if one part of the grid fails, localized generation from DER can continue to supply power to nearby users. Furthermore, having multiple small-scale sources reduces dependency on centralized facilities, which can be vulnerable to outages or disasters. The increased flexibility provided by DER allows for quicker recovery times and improved overall reliability of the energy system.
• Evaluate the role of policies in promoting the adoption of distributed energy resources.
  • Policies play a critical role in promoting distributed energy resources by providing incentives such as tax credits, rebates, and grants for renewable installations. Additionally, regulatory frameworks like net metering encourage homeowners and businesses to invest in their own energy generation systems. Supportive legislation also facilitates integration into the existing grid through standards and guidelines for interconnection. These policy measures create a more favorable environment for DER development and encourage wider acceptance and usage among consumers.
• Assess how distributed energy resources interact with smart grid technologies to optimize energy management.
  • Distributed energy resources and smart grid technologies work together to create a more efficient and responsive energy system. Smart grids utilize advanced communication and automation technologies that enable real-time monitoring and management of electricity flows from various sources, including DER. This interaction allows for optimized load balancing, peak demand reduction through demand response programs, and increased integration of renewable energy into the grid. Ultimately, this collaboration supports a transition towards a more sustainable and resilient energy landscape while empowering consumers with greater control over their energy usage.

Related terms

Microgrid: A localized grid that can disconnect from the traditional grid and operate independently, using DER for energy generation and management.

Demand Response: A strategy that incentivizes consumers to reduce or shift their electricity usage during peak demand times to maintain grid stability.

Net Metering: A billing arrangement that allows consumers who generate their own electricity from solar power or other renewable sources to sell excess energy back to the grid.