Is the net energy of renewables high enough to actually power human civilization? Or will replacing fossil fuels prove too difficult on an energetic basis? What is the state of the art in net energy analysis, and can biophysical economics yet prove to be policy relevant, and not just an arcane field of study that only interests academics? What’s the trajectory of EROI for various fuels, and what’s the right way to compare them?
If you’ve heard that the net energy of renewables is too low to run society, and that as a result energy transition is destined to fail…then you need to listen to this interview with net energy researcher Rembrandt Koppelaar and check out his new research. His findings will probably surprise you.
Australia has the highest proportion of households with rooftop solar PV systems of any country in the world. It also has the second-dirtiest grid in the world, getting three-quarters of its power from coal. As such, Australia might as well be the global poster child of energy transition, with both a huge load of dirty power plants it needs to retire, and a huge set of distributed and variable solar and wind systems that it needs to integrate into its power grid, while keeping everything balanced, without being able to import or export electricity from other nations. It’s a fascinating case study in wholesale markets, renewable incentives, technical balancing issues, and yes, acrimonious political debate between Browns and Greens. To help us understand this complex picture, we speak with Dr. Jenny Riesz, a Principal at the Australian Energy Market Operator (AEMO), the operator of Australia’s largest gas and electricity markets and power systems. Dr. Riesz works on adapting AEMO’s processes and functions to ensure ongoing security and reliability as the power system transitions to renewables, and leads its work program on matters such as frequency control, analysis on declining inertia, and possible solutions such as Fast Frequency Response.
There’s nothing to give you a little perspective on what’s happening on planet Earth like getting off it and seeing its beauty—and it’s human-caused destruction—from space. In this wide-ranging interview, former astronaut Jay Apt, a professor of technology and business at Carnegie Mellon University, shares some insights from his voluminous body of research on energy transition topics, including: what the power grid of the future could look like; how we’ll balance it with increasing levels of renewable energy; how to smooth out the fluctuations in wind farm power output; utility business model evolution and resource adequacy planning; what the optimal amount of storage on the PJM Interconnection might be; the economics of behind-the-meter battery systems; the potential future for EVs providing services to the grid; whether carbon capture and sequestration technology and geoengineering can play significant roles in addressing climate change; the new era of electricity de- and re-regulation; and of course, what it’s like to look down on Earth from space. You’ll never see an hour go by as quickly as this one.
Although it’s not widely talked about, one of the hottest sectors buying renewables now is the corporate sector. Fortune 500 companies are buying solar and wind power, and renewable energy credits, at a record pace. But why? What’s in it for them? What are the economic risks and rewards of going to the extra trouble to buy green power? How do arrangements like “virtual power purchase agreements” work? How do we manage balancing between wholesale markets in a future of strong interstate corporate procurement? And what’s the outlook for corporate buying of renewables? Our guest answers all of these questions and more in this wonkilicious episode, guaranteed to keep CFOs on the edge of their seats.
What are green bonds, and how can they help mobilize private capital to fund energy transition and climate change mitigation measures? What kinds of things can green bonds be used to fund? What are the various roles for private, corporate, and sovereign issuers? Why does the green bond market need to grow by roughly 10x over the next few years to $1 trillion a year globally, and is there even enough capital out there willing to accept single-digit returns to buy that amount of green bonds? Are green bonds an answer to the stranded assets problem in the fossil fuel sector? And what can the appetite for green bonds tell us about monetary policy and appropriate discount rates for climate change mitigation measures? We get deep into all of these questions with the CEO of the Climate Bonds Initiative, an international NGO working to mobilize debt capital markets for climate solutions.
This is a special, free "extra" episode recorded at RMI’s eLab Annual Summit in December 2016 in Austin, Texas.
Through a variety of programs, Austin Energy, the eighth largest publicly-owned electric utility in the U.S., has led the way to an EV future in Texas, installing the first EV charging infrastructure in the region, offering rebates for installing charging stations and the ability to charge up at 250 charging stations throughout the city for a low flat rate using 100% renewable energy. Karl Popham, the Electric Vehicle & Emerging Technologies Manager at Austin Energy, explains how he did it and what other similarly positioned utility leaders can do in an interview from RMI’s eLab Annual Summit 2016.
The North Seas Countries’ Offshore Grid Initiative would knit together the power grids of the countries adjacent to the North Sea, and enable a far greater share of renewables—especially offshore wind—on the northern European grid than would be possible otherwise. It would also make it possible to use Norway’s substantial hydro capacity as a giant battery to balance out the variability of wind and solar on the grid. And in the longer term, it could be a key part of a European “supergrid” that would connect the transmission grids of all of Europe, and potentially even tap the massive solar capacity of the Middle East and northern Africa. These are big, bold ideas, and implementing them won’t be easy or cheap, but the benefits would be enormous… so much so that building these transmission links might be inevitable. But the planning alone has already gone on for at least seven years, and while some of the countries that would connect to the North Seas Offshore Grid are already building parts of their contribution to it, there is still much work to be done…and building the physical infrastructure might be the easy part! In this episode we talk with a Dutch expert who has been directly involved in evaluating and planning for these supergrids to see where they now stand, what their potential costs and benefits are, and what we might expect in the future.
This is a special, free "extra" episode recorded at RMI’s eLab Annual Summit in December 2016 in Austin, Texas.
Grid architecture is evolving, with loads becoming increasingly indistinguishable from generators, and local generators and other distributed resources increasingly supplying the services that were always provided by large central generators in the past. Meanwhile, an ever-evolving set of regulations for wholesale market operations is both enabling new market participants and challenging the security of old market participants. Lorenzo Kristov of the California Independent System Operator returns to the Energy Transition Show to share more of his view of the future in an interview from RMI’s eLab Annual Summit 2016.
This is a special, free "extra" episode recorded at RMI’s eLab Annual Summit in December 2016 in Austin, Texas.
How is Hawaii managing one of the most rapid energy transitions in history to variable wind and solar generators, while maintaining a balanced, isolated grid and actually reducing long-term costs? It’s no accident: They have developed a transition roadmap and they are working hard to adopt the latest technology while preserving social equity…not just for grid power, but for electric vehicles as well, toward a goal of reaching 100% renewable electricity by 2045. Lorraine Akiba of the Hawaii PUC shares her perspective in an interview from RMI’s eLab Annual Summit 2016.
Ireland is one of the most advanced countries in energy transition, getting over a quarter of its electricity from renewables. It also has one of the most ambitious targets—to obtain 40% of its electricity generation from renewables by 2020—and the resources to be more than 100% powered by renewables, given time and technological development. On the flip side, it also has a severe dependence on imported fossil fuels, and relies on some of the dirtiest power plants in the world.
In this episode, we explore this curious mix of reality, ambition, and potential with the leader of Ireland’s Green Party, a bona fide energy wonk and a longtime supporter of energy transition. From Ireland’s domestic renewable resources to the tantalizing possibility of the North Seas Offshore Grid initiative, it’s all here.