“Dave Hostetter sets the example of how an honorable, dynamic, and experienced engineer acts at SCS,” said Paul Mandeville, Senior Vice President and Director of SCS’s offices on the east coast. “Dave serves as a model of what young professionals and students should strive to become in their professional careers; we are very proud of him.”
Dave Hostetter, a recent graduate of the SAME DC Post’s 2015 Leadership Lab was honored to receive the Society of American Military Engineers Honorable Mention for Outstanding Contributions by Young Civilian Member. Dave is a registered professional engineer, a LEED Accredited Professional (LEED AP) through the U.S. Green Building Council, and a Certified Energy Manager (CEM) at SCS Engineers.
Throughout his career he has focused on three things: using his engineering skills to make a difference in the world, serving his clients wholeheartedly, and mentoring others. These guiding principles have led him through many fields of engineering from HVAC and plumbing engineering to energy engineering to landfill gas engineering to controls system engineering.
From 2012 to 2013 Dave was the site project manager for a large retro-commissioning project of two hospitals in the Veterans Integrated Service Network (VISN) 3. More than 1,500,000 square feet of building space were retro-commissioned. Throughout this project, he worked diligently to identify hundreds of issues with the building HVAC systems and create recommendations for each one. His recommendations were projected to save the VA approximately $200,000 / year and have an average payback period of approximately 0.2 years.
In 2016 Dave engineered and installed a unique environmental monitoring system for a client at a port in New Jersey. The client had an air monitoring program which required them to monitor the air quality at six different points around the port on a daily basis. Their original process was time-consuming and was, therefore expensive. Dave engineered and installed a system of wireless sensors which communicate air monitoring data back to an online database. This online database allows the client to view current and historical data, it automatically generates a daily summary report, and it sends out alarms when one of the measured parameters exceeds its alarm setpoint. This new system has reduced the client’s expenditure on labor, saved costs and resources, and increased their ability to understand and respond to the results from their environmental monitoring system.
Dave mentors other young professionals at SCS by involving them in real life hands-on engineering projects. These projects include some sort of equipment installation or troubleshooting work which allows the young engineers to actually see how things are installed, ask good questions on how things work, get face-to-face time with a senior level engineer, and learn valuable lessons on risk and safety management in specific situations.
Dave’s expertise was developed as the result of SCS professionals taking the time to mentor him in the same manner, and his goal is to pass the learning technique and knowledge on to others.
Dave lives the SCS Engineers mission statement to:
Clients trust him for his honest and comprehensive approach to their challenges. Dave takes ownership of his work and puts in the time and effort to deliver excellent results and maintain a great relationship with his clients.
Congratulations, Dave!
EPA is proposing a GHG SER of 75,000 tons per year (tpy) Carbon Dioxide equivalent (CO2e) and requesting comment on it as well as two lower levels, specifically 30,000 tpy and 45,000 tpy CO2e, respectively.
The Associations do not believe there is sufficient information to support lowering the GHG SER below the proposed 75,000 tpy CO2e level and provided a table utilizing equivalent criteria pollutants from combustion sources (i.e., NOx, CO) yields CO2 emissions as high as 780,000 tpy CO2.
EPA already concluded in USEPA, Proposed PSD Revisions Rule, 81 FR 68137 that the burdens of regulation at a GHG SER level between 30,000 and 75,000 tpy CO2e would yield a gain of trivial or no value from both a programmatic and individual project-level perspective. Therefore, NWRA and SWANA strongly recommend EPA retain proposed GHG SER of 75,000 CO2e (or higher), and resist pressure to lower the GHG SER.
On the Topic of Biogenic GHG Emissions, the EPA’s final rule requires clarification to remain consistent with previous documentation and research to prevent significant permitting delays and increased costs that will not result in meaningful emission reductions.
The Associations encourage the EPA to ensure that waste-derived biogenic CO2 (e.g., from municipal solid waste (MSW) landfills) is treated as carbon neutral under the final PSD Permitting Revisions Rule to be consistent with prior Agency determinations specified in this memorandum and documents as follows:S. EPA, Memorandum Addressing Biogenic Carbon Dioxide Emissions from Stationary Sources, McCabe, Janet, November 19, 2014.
S. EPA, Memorandum Addressing Biogenic Carbon Dioxide Emissions from Stationary Sources, McCabe, Janet, November 19, 2014. The documents highlight waste-derived, biogenic CO2 as a type of “carbon neutral” feedstock based on the conclusions supported by a variety of technical studies and conclusions of the Agency’s latest draft Framework for Assessing Biogenic Carbon Dioxide for Stationary Sources, which was released with the memo. The Agency memo stated that “the Agency expects to recognize the biogenic CO2 emissions and climate policy benefits of such feedstocks in [the] implementation of the CPP.”
US EPA, Emission Guidelines for EGUs, 80 FR 64855. Both the revised Framework, and the EPA’s Scientific Advisory Board (SAB) peer review of the 2011 Draft Framework, found “that the use of biomass feedstocks derived from the decomposition of biogenic waste in landfills, compost facilities, or anaerobic digesters did not constitute a net contribution of biogenic CO2 emissions to the atmosphere.”
S. EPA, Appendix N. of Revised Framework for Assessing biogenic Carbon Dioxide for Stationary Sources, November 2014, pg. N-25. In Appendix N. of the Framework, entitled Emissions from Waste-Derived Biogenic Feedstocks, EPA calculated negative Biogenic Accounting Factors (BAF) for various examples of treatment of landfill gas via collection and combustion. EPA explains, “Negative BAF values indicate that combustion of collected landfill gas feedstock by a stationary source results in a net CO2e emissions reduction relative to releasing collected gas without treatment.”
US EPA, Carbon Pollution Emission Guidelines for Existing Stationary Sources: Electric Generating Units; Final Rule [Emission Guidelines for EGUs], 80 FR 64885. “[T]he use of some biomass-derived fuels can play a role in controlling increases of [in] CO2 levels in the atmosph The use of some kinds of biomass has the potential to offer a wide range of environmental benefits, including carbon benefits.”
US EPA, Emission Guidelines for EGUs, 80 FR 94855. Types of waste-derived biogenic feedstocks may include: landfill gas generated through decomposition of MSW [municipal solid waste] in a landfill; biogas generated from the decomposition of livestock waste, biogenic MSW, and/or other food waste in an anaerobic digester; biogas generated through the treatment of waste water, due to the anaerobic decomposition of biological materials; livestock waste; and the biogenic fraction of MSW at waste-to-energy facilities.
NWRA and SWANA believe the final PSD Revisions document should follow the approach to waste-derived feedstocks enshrined in the Final Clean Power Plan, and as recommended by the SAB, and ensure that waste-derived biogenic CO2 is treated as carbon neutral. Based on EPA’s own lifecycle assessments for the Renewable Fuels Standard program, its U.S. GHG Inventory, and confirmed by the SAB, EPA has sufficient analysis to support exclusion of selected categories of biogenic emissions from PSD permitting, including those from managing landfill gas and organic components of MSW.
The EPA does not seem to consider the regulatory treatment of biogenic CO2 from stationary sources to be a key issue in the context of the PSD revisions rule, based on a comment found in a Summary of Interagency Working Comments on Draft Language. Instead, the EPA continues to believe this rulemaking to establish a GHG SER under the PSD program is not the appropriate venue to address the broader concern of the regulatory treatment of biogenic CO2 from stationary sources.
The Associations strongly disagree and are concerned that because EPA remains silent on this important issue, some permitting authorities might improperly require landfills to incorporate biogenic CO2 emissions in the PSD permitting process. Historically, few landfills triggered PSD because non-methane organics emissions rarely reached the threshold. However, if biogenic CO2 emissions become subject to PSD, many landfill projects, which are “anyway sources” due to renewable energy projects, would also be forced to do BACT analysis for GHG. Biogenic CO2 is emitted from:
From the perspective of developing new renewable transportation fuel or energy projects, subjecting biogenic emissions from landfills to PSD could be an enormous barrier. The Associations would like the EPA to clarify in its final rule that the emissions of biogenic CO2 from treating or controlling landfill gas does not increase the CO2 levels in the atmosphere, but instead, has positive emission reduction and climate benefits. Failing to clarify this important point could subject landfills to significant permitting delays and increased costs that will result in no meaningful emission reductions.
Questions? Contact SWANA, NWRA, Patrick Sullivan, or your local SCS office.
Under section 211 of the Clean Air Act, the Environmental Protection Agency (EPA) is required to set renewable fuel percentage standards every year, including for cellulosic biofuel, biomass-based diesel, advanced biofuel, and total renewable fuel. In November the EPA established the 2017 standards, which will apply to all motor vehicle gasoline and diesel produced or imported in the year 2017. Most biogas produced qualifies as Advanced Cellulosic Biofuels, or the D3 category, which is the same as cellulosic (non-corn) ethanol. For the last several years, nearly 95% of the advanced cellulosic fuel generated has been from digester and landfill biogas, not cellulosic ethanol.
The final rule also establishes the four percentage standards applicable to producers and importers of gasoline and diesel, based on volume requirements. Renewable Fuel Volumetric Obligations (RVOs) are expected to continue driving the market to overcome constraints in the renewable fuel distribution infrastructure. This, in turn, could lead to substantial growth over time in the production and use of renewable fuels. If a renewable fuel-producing project uses a Renewable Fuel Standard (RFS)-approved pathway and is registered with EPA, the project can generate credits that can be sold to produce additional revenue. The value of these Renewable Identification Numbers (RINs) credits fluctuates based on market supply and demand.
The 2017 RVOs finalized in November for 2017 will help drive the market demand for these credits. Producers of biogas want the demand for RVO to be higher than the supply of biogas that will actually be produced and used as vehicle fuel during the year. This will protect the value of RINs, encouraging revenues for biogas-vehicle fuel projects and financing for new projects. Digester and landfill biogas normally have the highest value of all RINs.
Overall, EPA’s 2017 standards recognize the important role that biogas plays among all advanced biofuel producers, including cellulosic ethanol, and the role biogas will continue to play for generating renewable fuel for US vehicles.
SCS Engineers’ National Experts are available to answer your questions about the impact of the 2017 standards on your business and current and potential projects. Click here to contact SCS.
On July 11, 2016, multiple organizations representing the full value chain of cellulosic waste feedstock conversion to transportation fuel sent a letter to Gina McCarthy, Administrator of the U.S. Environmental Protection Agency (EPA). The letter supporting the Renewable Fuel Standard Program: Standards for 2017 and Biomass-Based Diesel Volume for 2018 (Proposed Rule) noted that additional information and factors need to be considered.
Read or share a copy of the letter here, contact SCS Engineers, or one of the organizations below:
