Updated Version (1.1) available (Released January 9, 2014):
Contest Webinar Slides
Questions & Answers
Last Updated March 7, 2014 (#5-#13)
- We have a question re the delivered Hydrogen. In iv "For comparison, use http://www.ttcorp.com/pdf/marketReport.pdf, page 11 for costs of delivered hydrogen in the U.S. Note that these prices does not include sales tax." and in vi "Teams should assume a cost of $7/kg for delivered gaseous H2.". Should we assume $7/kg delivered (not calculating the distance)?
Yes, please do not calculate the distance, as we cannot provide information about facilities that produce hydrogen, and it may skew the entries if distances and thus price differs too much among entries. Assume $7/kg for delivered gaseous hydrogen.
- What will the delivered pressure be?
For gaseous hydrogen delivery, assume the pressure at 200 bar. For liquid delivery pressure, if via a trailer truck to a ground cryogenic storage tank, assume 5 bar.
- And what is the purity of the delivered hydrogen?
You may assume that the delivered hydrogen meets the 5 9s (99.999%) purity requirement for vehicle fuel.
- Sir can you please clarify what is the meaning of drop in fuelling station?
For the Contest, a drop-in fueling station would be a station that is containerized and can be easily transported and turned on-line within a short time frame. Details on these requirements are in the rules & guidelines.
- Will the recordings of the Webinar be available? Currently only slides are available.
The webinar recording is available here: www1.eere.energy.gov/hydrogenandfuelcells/webinar_archives_2014.html#date011414. Please note that the Rules & Guidelines take precedent over the recorded materials.
- At the Q&A session, it was stated that gaseous hydrogen is $7/kg but not taking distance into account. This statement reflects some problem from my point of view where the well-to-wheels analysis, which is a distance dependent function; or a fixed distance within cycle is given to all teams so that fair calculations and comparisons will be achieved.
Very good point! Rather than making up an arbitrary distance number, assume there is no distance, and therefore you do not need to include this part in your analysis. During the review process, transport related GHG emissions of the hydrogen delivery to the station will not be judges.
- Will the appendix be included under page count?
Yes, only citations, references, and a number of items described in the Rules and Guidelines are not included in the page count, e.g. "one-page high-resolution advertisement" mentioned in section 3.2.8.
- We are a little confused about a guideline that is outlined in the Section 3.2.2 under Storage of the Rules and Guidelines. The rules say that "on-site hydrogen storage should to accommodate a 48 hour shutdown." What kind of shutdown is this referring to? Electrical? Mechanical? Hydrogen production/delivery? Depending upon what kind of shutdown it is, our approach to managing it could differ considerably. Can you clarify what kind of shutdown it is?
The shutdown refers to any kind of malfunction that prohibits the generation, compression, or refueling with hydrogen. Here the idea is to have enough hydrogen stored for the system to be operational for another 48 hours without being able to produce H2 on-site or getting it delivered. The 48 hour requirement equates to 200kg of stored H2. After going back to our industry advisers it seems like this is a very demanding request, especially for an on-site production unit. However, due to the late stage of the design development, continue to use original amount of 200kg.
- As I go through the recording of Webinar, I heard that "...the station must be able to either produce the fuel on-site or get the hydrogen delivered of course, but also compression, storage and dispensing..."(45:28 +/-). Organic hydride is a novel approach in hydrogen technology which has slight differences and requirements in several aspects. So, I went back to restudy the rules and guidelines and had some new thoughts about our design, but confirmation for validity under the scope is needed and also some help upon my understanding towards the rules and guidelines.
The Rules and Guidelines clearly state you may only consider using commercially available components for the design of your station. If you find commercial organic hydride systems, you may use that technology.
The objective of this Contest is to provide near-term solutions for the market rollout of FCEVs. Using technology in the R&D phase would not be able to address this immediate market need.
- The chapter for storage states that "While hydrogen needs to be stored, the amount needed for storage may differ depending on the ability to produce additional hydrogen on-site. Be sure to explain in detail all major characteristics of the storage unit(s)..." which means that compressed gas storage tank can be reduced, changed by other means or even waived but proposed along with respective options' rationale.
You are still required to provide back-up hydrogen in case the hydrogen production, compression system or delivery mechanism for delivered hydrogen shuts down. Having a backup hydrogen storage system is a requirement, especially to meet the 48 hour shutdown condition.
- The chapter for transportability states that "...The container(s) shall be of a size and weight such as to be capable of being transported on city streets. Dimensions must account for both horizontal as well as vertical (e.g., overhead utility lines or infrastructure) clearance. While not required, a 40-foot standard ISO container would meet this requirement..." which means that a 20-foot standard ISO container is allowed but the maximum dimension is 40-foot standard ISO container.
Any ISO container that the fueling station could harbor is allowed, including 20’ and 40’.
- The chapter for background states that "...areas that do not have a well-developed hydrogen fueling infrastructure..." and also the chapter for siting states that "...identify one specific site in the United States to site their fueling station. Teams should contact the site owner to determine local conditions and requirements... It shall outline local requirements, certifications and permits that need to be met, and if their system would meet them." which both statements come to one point, that is the chosen location has merely developed or even no development in hydrogen infrastructure, whereby it's a potential develop spot but the demand of that spot is unclear but based on information from site owner. If that's so, then the consequence is that our standard costing and ROI has high variance and non-static factors, depending on source from site owner.
No, your costing, ROI, or demand are not related to the system site. The siting of the system shall only demonstrate the ability of your team to put the system online in a real-life scenario and anticipate site-specific issues.
The Rules & Guidelines specify which cost assumptions to use for the generation or delivery of hydrogen. Please refer to the endnotes in Section 3.2.3.
- Furthermore, our team has a major problem in "Siting", and I think that other teams will somehow have the same problem. As we look through the web, phone contacts were available only, in addition, we have a time difference about 13 hours and also these correlated problems. Any suggestion to address this problem for international teams?
Depending on your approach, we welcome outreach to any site that accommodates your time schedule in the U.S. There are 3 time zones in the U.S. which may help determine a site with which an interaction is possible.
If all attempts fail, as a last resort you may select a site without contacting the site owner, but you must show that your approach for that site reflects all key factors related to siting your system at that location.
|Team Registration and Team Roster Due
||January 15, 2014
||January 15, 2014
|Late Team Registration and Team Roster Due
||January 31, 2014
|Late Abstract Deadline
||January 31, 2014
|Submission Deadline for Final Entry
|| March 21, 2014
|Announcement of Contest Winners
||April 15, 2014
|Trip to ACT Expo 2014, Long Beach, CA
||May 5-9, 2014