NewEnergyNews: TODAY’S STUDY: The Way To Grow EVs With Electricity Rates


Gleanings from the web and the world, condensed for convenience, illustrated for enlightenment, arranged for impact...

While the OFFICE of President remains in highest regard at NewEnergyNews, this administration's position on climate change makes it impossible to regard THIS president with respect. Below is the NewEnergyNews theme song until 2020.

The challenge now: To make every day Earth Day.


  • FRIDAY WORLD HEADLINE-Facing A Mass Extinction
  • FRIDAY WORLD HEADLINE-China Takes Over The Solar World
  • FRIDAY WORLD HEADLINE-Pakistan Turning To Wind
  • FRIDAY WORLD HEADLINE-30X Growth In Distributed Storage Over The Next Decade


  • TTTA Thursday-Al Gore Goes Deep On Climate
  • TTTA Thursday-Ready To Hit The Solar Road
  • TTTA Thursday-Wind In The Cities – The Cleveland Example
  • TTTA Thursday-20X Growth For Global Grid Scale Storage In Next Decade

  • ORIGINAL REPORTING: The Solar Market Transformation
  • ORIGINAL REPORTING: A Close Look At Hawaii’s Plan To Get To 100% New Energy
  • ORIGINAL REPORTING: The Big Plan To Get Energy Storage Paid What It’s Worth

  • TODAY’S STUDY: How To Bring Energy Storage To Market
  • QUICK NEWS, July 18: How Fear Drives Climate Change Denial; How The President Misunderstands Wind; A Truly Doable Solar Vision

  • TODAY’S STUDY: Huge Support By U.S. Voters For Paris Climate Agreement – Poll
  • QUICK NEWS, July 17: 4 Key Ways To Stand Up To Climate Change; New Energy Safe For U.S. Grid – DOE Study; Solar Plus Storage Can Beat NatGas Price

  • Weekend Video: Here Comes The Plug
  • Weekend Video: Big Solar With Storage Can Get Cheaper
  • Weekend Video: All About The Climate Consensus
  • --------------------------


    Anne B. Butterfield of Daily Camera and Huffington Post, f is an occasional contributor to NewEnergyNews


    Some of Anne's contributions:

  • Another Tipping Point: US Coal Supply Decline So Real Even West Virginia Concurs (REPORT), November 26, 2013
  • SOLAR FOR ME BUT NOT FOR THEE ~ Xcel's Push to Undermine Rooftop Solar, September 20, 2013
  • NEW BILLS AND NEW BIRDS in Colorado's recent session, May 20, 2013
  • Lies, damned lies and politicians (October 8, 2012)
  • Colorado's Elegant Solution to Fracking (April 23, 2012)
  • Shale Gas: From Geologic Bubble to Economic Bubble (March 15, 2012)
  • Taken for granted no more (February 5, 2012)
  • The Republican clown car circus (January 6, 2012)
  • Twenty-Somethings of Colorado With Skin in the Game (November 22, 2011)
  • Occupy, Xcel, and the Mother of All Cliffs (October 31, 2011)
  • Boulder Can Own Its Power With Distributed Generation (June 7, 2011)
  • The Plunging Cost of Renewables and Boulder's Energy Future (April 19, 2011)
  • Paddling Down the River Denial (January 12, 2011)
  • The Fox (News) That Jumped the Shark (December 16, 2010)
  • Click here for an archive of Butterfield columns


    Some details about NewEnergyNews and the man behind the curtain: Herman K. Trabish, Agua Dulce, CA., Doctor with my hands, Writer with my head, Student of New Energy and Human Experience with my heart




      A tip of the NewEnergyNews cap to Phillip Garcia for crucial assistance in the design implementation of this site. Thanks, Phillip.


    Pay a visit to the HARRY BOYKOFF page at Basketball Reference, sponsored by NewEnergyNews and Oil In Their Blood.

  • ---------------
  • WEEKEND VIDEOS, July 22-23:

  • How To Know It’s Getting Hotter
  • Sea Level Rise To Follow Soon
  • Buildings That Can Benefit The Climate

    Tuesday, April 25, 2017

    TODAY’S STUDY: The Way To Grow EVs With Electricity Rates

    EVgo Fleet and Tariff Analysis -- Phase 1: California

    Garrett Fitzgerald and Chris Nelder, April 6, 2017 (Rocky Mountain Institute)

    Executive Summary

    Public direct current fast chargers (DCFC) are anticipated to play an important role in accelerating electric vehicle (EV) adoption and mitigating transportation sector greenhouse gas (GHG) emissions. However, the high cost of utility demand charges is a significant barrier to the development of viable business models for public DCFC network operators.

    With today’s EV market penetration and current public DCFC utilization rates, demand charges can be responsible for over 90% of electricity costs, which are as high as $1.96/kWh at some locations during summer months.

    This issue will be compounded by the deployment of next-generation fast-charging stations, which are designed with more than two 50 kW DCFC per site and with higher-power DCFC (150kW or higher).

    As state legislators begin to craft legislation defining the role of utilities in deploying, owning and operating electric vehicle charging stations (EVSE) and other supporting infrastructure, it is critical that utility tariffs for EV charging support, rather than stifle, the shift to EVs. Utilities, their regulators, and EV charging station owners and operators must work together to provide all EV drivers—especially those without home and workplace charging options—access to reliable EV charging at a rate competitive with the gasoline equivalent cost of $0.29/kWh.

    Put another way, it should be possible for DCFC operators to sell power to end-users for $0.09/mile or less, while still operating a sustainable business.

    This project analyzed data from every charging session in 2016 from all 230 of EVgo’s DC fast charging stations in the state of California. From that data, we developed demand profiles for eight common types of site hosts, and analyzed the components of EVgo’s costs based on the utility tariffs the charging stations were on.

    We also created a workbook modeling tool that EVgo could use to test the effect that different tariffs would have on its network of charging stations within the territory of the three major California investor-owned utilities (IOUs): Southern California Edison (SCE), San Diego Gas & Electric (SDG&E), and Pacific Gas & Electric (PG&E). To provide context for this modeling, we created four scenarios describing the possible future evolution of the EV and public charging markets.

    These scenarios were narrative in nature, and mainly served as conceptual guides to future cost modeling.

    After modeling how different current and future tariffs affect the utility bills for each type of site where EVgo’s DCFC are located, and how those bills might look under the four scenarios in the future, we developed a critique of the various tariffs and some recommendations for future EV-specific rate design efforts.

    We concluded that, in order to promote a conducive business environment for public DCFC charging stations like EVgo’s, tariffs should have the following characteristics:

    • Time-varying volumetric rates, such as those proposed for SDG&E’s Public Charging Grid Integration Rate(GIR). Ideally, these volumetric charges would recover all, or nearly all, of the cost of providing energy and system capacity. An adder can be used to recover excessive costs for distribution capacity, but only costs in excess of the cost of meeting the same level of usage at a uniform demand rate, and ideally such an adder would be something the customer can try to avoid. The highest-cost periods of the time-of-use (ToU) tariff should coincide with the periods of highest system demand (or congestion) to the maximum practical degree of granularity.

    • Low fixed charges, which primarily reflect routine costs for things like maintenance and billing.

    • The opportunity to earn credit for providing grid services, perhaps along the lines of a solar net-metering design.

    • Rates that vary by location. “Locational marginal pricing” is conventionally a feature of wholesale electricity markets, reflecting the physical limits of the transmission system. But the concept could be borrowed for the purpose of siting charging depots, especially those that feature DCFC, in order to increase the efficiency of existing infrastructure and build new EV charging infrastructure at low cost. This could be done, for example, by offering low rates for DCFC installed in overbuilt and underutilized areas of the grid, particularly for “eHub” charging depots serving fleet and ridesharing vehicles.

    • Limited or no demand charges. Where demand charges are deemed to be necessary, it is essential that they be designed only to recover location-specific costs of connection to the grid, not upstream costs of distribution circuits, transmission, or generation. Our analysis shows that the new EV-specific tariffs proposed by SDG&E and SCE in their SB 350 Transportation Electrification applications would have far more stable and certain costs than the tariffs currently available in their territories, and would meet the objective of delivering public charging to end-users for less than $0.09/mile, in all four scenarios. This is primarily due to the lower or non-existent demand charges outlined in the new tariffs.

    We show that reducing or eliminating demand charges for the commercial public DCFC market, as these new tariffs do, is consistent with good rate-design principles and helps California to achieve its social objectives. We suggest that recovering nearly all utility costs for generation, transmission, and distribution through volumetric rates is appropriate for tariffs that apply to public DCFC, and that recovering some portion of those costs from the general customer base would be justifiable because public DCFC provide a public good. Finally, we offer some additional suggestions for how EVgo might reduce the cost of operating its network, beyond switching tariffs.

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