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Topic: Distributed Generation

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[Episode #229] – US Distributed Solar Potential

Jul 24 2024

Mini Episode

What is the full potential for distributed solar power in the US?

Many models have been developed to explore how a decarbonized US energy system could look, consistently finding that solar power would be the dominant source of electricity. Yet, we don’t really know the full potential for distributed solar. Even the term “distributed solar” isn’t very well-defined, potentially referring to many different kinds of solar power installations.

In today’s conversation, we review the available estimates for small rooftop and ground-mounted systems typically found on buildings, solar panels on canopies over parking lots, and innovative floating solar arrays over bodies of freshwater. Additionally, we explore emerging options such as installations on brownfield sites, agricultural lands, and alongside roadways.

Then we add it all up to see how big of a role distributed solar could actually play in a fully decarbonized US electricity system—with a surprisingly large result! But you’ll have to be a premium member and listen to the end to find out what it is.

In this episode, we are joined by Robert Margolis, a Senior Energy Analyst with the Strategic Energy Analysis Center at the National Renewable Energy Laboratory (or NREL), which is part of the US Department of Energy. With more than 20 years of focused research on solar in the US, and his deep familiarity with energy technology and policy and energy-economic-environmental modeling, he is one of the top experts on the potential for distributed solar in the US.

Guest:

Robert Margolis is a Senior Energy Analyst in NREL’s Strategic Energy Analysis Center. Since joining NREL in 2003, he has served as key advisor to the U.S. DOE’s Solar Energy Technologies Office. In this role he has helped to define and carry out a broad analytical agenda focused on examining the potential for and challenges related to wide-spread adoption of solar energy. He led the Solar Futures Study (2021), the On the Path to SunShot Study (2016), and the SunShot Vision Study (2021). His main research interests include energy technology and policy; research, development, and demonstration policy; and energy-economic-environmental modeling.

On the Web:  Robert’s page at NREL

Geek rating: 4

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[Episode #189] – Financing the Transition

Jan 4 2023

Mini Episode

According to the International Energy Agency (IEA), almost all of the growth in global clean energy spending is happening in advanced economies and China, while the two-thirds of the global population that live in emerging market and developing economies are receiving less than one-fifth of the total. The reason? The high cost of capital.

But why is the cost of capital so much higher in emerging economies than in advanced economies? Why is it still so much harder and more expensive to finance clean energy projects than it is to finance fossil fuel projects in those countries? And what can be done about it?

In this episode, we speak with a solar project developer working in Costa Rica to try to answer these questions. Building on our previous discussion from Episode #21, we try to explain why so little progress has been made, especially by the multilateral development banks (like the World Bank), in reducing the cost of financing for renewable energy projects in emerging economies. We review the different roles that various financial institutions play in financing the energy transition, and we ask what needs to change to unlock the flow of capital into energy transition solutions (especially distributed solar). We also put the risk and reward of investing in those projects in a fresh context, and call upon banks of all kinds to start acting in more creative and ambitious ways to take bolder action and get capital deployed where it is most needed, and where it can do the most good.

Geek rating: 6

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