Generac Grid Services Blog

Demand-side resources are key to system flexibility

By Malcolm Metcalfe on Jul 19, 2016 11:00:00 AM

The National Renewable Energy Lab has a great paper titled Flexibility in 21st Century Power Systems. The paper addresses three grid requirements to accommodate increasing numbers of variable generation resources like wind and solar energy.

  1. The first among those requirements is flexible generation. We need power plants that can run efficiently with a very low output level and ramp rapidly from those deep turn-down rates.
  2. We also need flexible transmission to carry power without bottlenecks and facilitate access to a broad range of balancing resources. That’s requirement number two.
  3. And, finally, the NREL authors say requirement number three is flexible demand-side resources. Those resources include storage, responsive distributed generation and loads engaged in demand response programs that can support the grid by responding to market signals or direct load control.

Amen to requirement number three.

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Topics: distributed energy resources, Distributed energy resource management, DERs, demand side management, DERMs, demand response

It’s Time to Ditch Disruption in Demand Response

By Enbala on Jul 6, 2016 9:00:00 AM

According to FERC’s most recent "Demand Response and Advanced Metering Assessment," 74 percent of the potential peak reduction in retail demand-management programs comes from C&I customers. That means that the biggest, most valuable energy customers are also the most likely  allies in a demand response initiative.

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Topics: distributed energy resources, Distributed energy resource management, DERs, demand side management, DERMs, demand response

Behind-the-meter grid support: Past, present and future

By Enbala on Jun 29, 2016 9:48:37 AM

Demand side management (DSM) is the umbrella term for the various methods that power providers employ to get customers to curb consumption. It’s been around since the 1970s, notes Joseph Eto, a Lawrence Berkeley National Lab researcher who wrote a detailed history of it in 1996. He counts conservation education, energy audits, efficiency freebies, financial assistance and time-based tariffs among the forms of DSM utilities use.

Eto also covers the technological approaches designed to achieve objectives like load shifting, peak reduction and off-peak consumption increases.

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Topics: distributed energy resources, Distributed energy resource management, DERs, demand side management, demand response, utility of the future

The Art of Persuasion: Studies that Can Help You Recruit DERs

By Enbala on Jun 8, 2016 3:28:20 PM

Every demand response program, every virtual power plant, every distributed energy resource (DER) management system needs one thing to be successful: customers who are willing to hand over their DER controls. Given that participant recruitment is such an important factor in a DER management program’s success, it can’t hurt to bone up on the art of persuasion.

That’s easy to do with The Small Big, a business book that looks at several different studies on how to coax others to do the things you want them to do. Its authors include Robert Cialdini, who wrote Influence, a business psychology text that has been on Fortune’s list of the 75 Smartest Business Books for years. Influence boils down the art of persuasion into six key motivators.

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Topics: DERs, demand management, demand response, customer persuasion

Up, Down, All Around: Maximizing Demand-Side Resources

By Enbala on Jun 2, 2016 4:03:53 PM

For too many people, demand-side management (DSM) of energy resources means one thing: shedding load. That’s a limiting and outdated view of DSM.

Given the right control platform, Distributed Energy Resources (DERs) can move their power consumption up or down to support the needs of the power system. To get the benefit of that flexibility, you need to think of all DERs – even loads – as resources that can be charged up the same way you charge a battery energy storage system. 

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Topics: distributed energy resources, DERs, demand response, load shedding, Metcalfe's Law

Batteries vs. Demand Management: They’re Stronger Together

By Enbala on Mar 17, 2016 11:51:04 AM

Given the proliferation of renewables — plus the dramatic growth rates predicted for solar and wind power over the next year or two — plenty of people are looking to storage as the way to save us from renewable intermittency. But, storage is pricey. And, given the potential for long stretches of inclement weather that knocks solar PV output down or fails to turn the wind turbines, the storage we have available today is unlikely to be sufficient for the power grid’s needs.

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Topics: distributed energy resources, Distributed energy resource management, process storage, battery storage, DERs, demand management, DERMs, demand response

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