Energypath 2016: This Is What I Am Talking about! Penn State University Delivered a Complete Multifaceted Week about Renewable Energy and Biofuels

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September 13, 2016

by Danilo Gusmão de Quadros* and Joanne Ivancic** (Advanced Biofuels USA) After Dan Quadros' oft-repeated criticism about biofuels education and the big gap between research and the job market, he was pleased to experience the best example of how to bring them closer together, demonstrated by the Sustainable Energy Fund organizing, at Pennsylvania State University (PSU), for one week, a group of activities involving people from different education levels. Here's his report.

Dr. Dan Quadros Dr. Danilo Gusmão de Quadros attends Energypath's Energycamp at Penn State

Energycamp, Renewable Energy and Sustainability Systems Graduate Program (RESS) symposium, Energypath conference and expo.  Together they pleased all the attendees with high levels of information in a variety of areas of renewable energy and biofuels, putting together theory and practice. The events took place from 25 to 29 of July in University Park, PA.

There was a remarkable number of undergraduate students from many majors, who had contact with this multidisciplinary area. The activities lighted the desire to contribute to a world more rational, equal and sustainable. Graduate students, professors, people from private companies and general public comprised the attendees, exchanging experiences and developing a future network.

Energycampers building a solar array and testing it by making popcorn. Energycampers build a solar array and test it by making popcorn.

Energycamp: Hands on

In the Energycamp, the attendees could have theory and practical classes. People were divided in groups depending on their main interest.

Camp Descriptions: 

INTRO TO SUSTAINABLE ENERGY: It covered basic energy concepts and terminology, energy usage in the US, components of electricity delivery (generation, transmission, distribution) and power grid, conventional and renewable energy sources, energy efficiency and LEED, and lastly tax credits and rebates for renewable energy systems. 

Energycampers testing home-made biodiesel. Energycampers quality- testing home-made biodiesel.

MICRO HYDRO: It provided participants with the fundamentals of design and installation of grid-interactive residential and farm scale micro hydro electricity systems (up to 10kW). The course covered permitting, site assessment (at a nearby stream), civil components, electrical components, and system economics. 

WIND: Attendees learned basic and advanced concepts and installed a turbine on campus. 

SOLAR PV: The class constructed a 3kW array that could be tied to the grid during Energypath. Topics covered: solar radiation, site assessment, PV system components, web monitoring, policy, economic analysis, siting and shading analysis, calculations for DC voltage, overcurrent sizing, inverter and wire sizing, and NEC requirements for grid tie installations. To demonstrate, the group made popcorn with the electricity generated from the array. 

BIOMASS: The activities included biodiesel production test batches and fuel quality testing and building a small gasifier. 

 

 

 

ENERGY STORAGE/FUEL CELLS:  This 3-day camp provided participants with an understanding of Fuel Cell Technology and Energy Storage Systems as well as how they integrate together to make sustainable systems.

Energycampers making stoves to demonstrate pyrolysis. Energycampers making stoves to demonstrate pyrolysis.

Topics included PEM, PAFC, SOFC, MCFC, and Microbial Fuel Cells as well as the sources for the fuel that is required for each of the fuel cell types and the sustainability aspects from acquiring the resources. Energy Storage topics included batteries, flywheels, reservoirs, as well as hydrogen energy storage techniques that can coupled with various renewable energy technologies. Micro-grid energy distribution systems consisting of fuel cells and energy storage devices also was covered as part of the overall applications of these technologies. 

 

 

bioenergy-crops-plots-osage-orange Woody biomass feedstock at the Penn State crop library.

PASSIVE HOUSE: Passive building comprises a set of design principles used to attain a quantifiable and rigorous level of energy efficiency within a specific quantifiable comfort level. “Maximize your gains, minimize your losses” summarize the approach.

***

In the biomass classes, we had an overview about bioenergy and biofuels production, conversion and markets. In the lab, we could make our own biodiesel from different feedstocks and run many analyses to test the quality standards. It was the first time for many of us. In the thermochemical pathway, we built camp stoves to make biomass pyrolysis. Such a great and unforgettable experience!

To learn more about biomass camp, listen to Dr. Ben Ballard's and Katherine Armstrong's interviews below to hear our teachers' and colleges' points of view.

 

Renewable Energy and Sustainable Systems (RESS) Symposium

Morning Star House Morning Star Project House

In the RESS Symposium, Penn State University professors updated their research with highlights in solar, wind and biomass. After that, we had a memorable technical trip in this historical and magnificent campus, where science and outreach projects are side by side.

We went to the sustainable house (Morning Star Project), projected to become more and more energy self-sufficient and efficient, involving building techniques, innovative materials, solar arrays and control panels. In the garage were parked a car and a motorcycle ready to receive renewable charges, different from what is expected today in the market of electric cars which use grid electricity, most coming from fossil fuels sources.

A wind turbine, installed outside of Morning Star House, was used to evaluate the potential of this clean energy production in Pennsylvania as well as to develop new technologies through applied research.

Large seminar presentation at Energypath 2016 conference Large seminar presentation at Energypath 2016 conference

In the compost area, all waste food from Penn State’s cafeteria is carefully separated by a well succeeded selective recycling bins program. The amount of food waste daily reaches 15 tonnes and is transformed into soil amendment, used for the garden on the campus.

Finally, we visited bioenergy plots, where different feedstocks are grown to test adaptability and to be demonstrated. Short Rotation Wood Crops (SRWC), like hybrid poplar and willow, had the focus of the explanations.

At the end of the fruitful day, three selected works made by RESS students were presented and battled for a prize.

PSU has been a leader in biofuels technological development and education. Read more about it in our article “Pennsylvania State University: an example to follow."

Energypath Conference

Joanne Ivancic demonstrates Advanced Biofuels USA website resources at the Energypath Expo Joanne Ivancic (left) demonstrates Advanced Biofuels USA website resources at the Energypath Expo

In the last two days, the Energypath conference took place, gathering specialists from academia, industry and consultants to discuss with attendees the new trends and technologies of renewables.

The presentations were very good, with experienced presenters. I interviewed Dr. Sarah Davis to explore more of her amazing work in cellulosic feedstock production and utilization. Listen to this exclusive interview below.

A small expo was mounted with booths including some companies, universities and organizations. Advanced Biofuels USA demonstrated its free virtual applied knowledge platform attracting the attention of many people, including undergraduate students interested in using the website information to improve in their careers.

Visitors to Advanced Biofuels USA information table at Energypath 2016 Visitors to Advanced Biofuels USA information table at Energypath 2016

Competitions with Cash Prizes

Energy Sprouts

In addition, the audience participated in judging the semifinalists of a contest of bioenergy innovative ideas in two levels –community projects involving universities and non-governmental organizations; and private companies. They called it the Energy Sprout Competition (http://www.wppsef.org/).

The winners are:

Community Competition

1st Place - Energy Coordinating Agency ($25,000)
2nd Place - Serenity Soular ($5,000)
3rd Place - Saint Francis Institute for Energy ($3,000)
Business Competition

1st Place - CEWA Technologies ($100,000)
2nd Place - EthosGen ($25,000)
3rd Place - Renewable Homes ($3,000)
READ MORE

Students from Thomas Edison Energysmart Charter School who participated in the middle school science fair Students from Thomas Edison Energysmart Charter School who participated in the middle school science fair

Science Fair

Energypath also included a science fair for middle and high school students.  Joanne Ivancic again enjoyed talking with the students who set up their displays as part of the expo.  This is a highlight of the event for her.

You might be amazed at the wise insights expressed by students presenting at the EnergyPath 2016 Science Fair.  They also shared stories about their experiences that would sound familiar to researchers around the world and throughout time.

anajali-gulapally-ujjayi-pamidigantam-trash-to-gas-winner-energypath2016 Ujjay Pamidigantam and her partner, Anjali Gullapally from Thomas Edison Energysmart Charter School won third place.

Middle schooler, Ujjay Pamidigantam  and her partner, Anjali Gullapally from Thomas Edison Energysmart Charter School worked on a biogas project.  Not only focused on US examples, they had information from around the world on their display.  Pamidigantam made an observation that escapes many non-biologists, "You have to treat bacteria like pets.  You have to keep them happy."   Anyone working with anaerobic digesters or with any fermentation process understands the importance of that concept.

The successes and results described on the posters were not nearly as interesting as the stories about the paths taken, the detours and disappointments and re-thinking that took place along the way.  The greatest learning was in transforming seeming set-backs into innovation and discovery.

 

Solomon Heisey takes first prize in the high school competition for "The Power of Algae" Solomon Heisey takes first prize in the high school competition for "The Power of Algae"

Also from Thomas Edison Energysmart Charter School, partners Neel Guda and Saurav Vidyadhara worked on a solar and nanotechnology technique to clean oil spills.  They were able to put their idea into practice, but ran into a practical problem.  Although the technology worked fine at cleaning the top surface of the oil spilled on water, it did not attract the lower layers.  What to do?  They found propellers from another boat model and reconfigured the experiment to add a function to churn the water. Thus, with the top layer ever changing, they were able to clean more of the spilled oil.  Not a part of the original design; and not the main technology they were trying to demonstrate; but essential to the practical success of their technology.

 

Michelle Surine explains measuring energy from watermeal/duckweed Michelle Surine explains measuring energy from watermeal/duckweed

Michelle Surine of Owen J. Roberts Middle School had a variation on the theme of "the dog ate my homework."  Her presentation, "Green Energy:  Can Wolffia (Watermeal) Be Used As a Viable Biomass Fuel Source" required her to make briquettes from a variety of feedstock, then test and compare their thermal properties.

Called "duckweed" in other parts of the country, these tiny plants floating on ponds are often mistaken for algae.  Surine gathered watermeal from a local pond, dried it (all her family agreed it smelled terrible while drying) and formed it into briquettes for the experiment.

Results indicated significant energy in this feedstock.  Since the Energypath science fair was at a later time, she put the briquettes into storage.  The ants ate them.  So the family had to suffer through another round of drying and pressing.  Surine then stored them in what seemed a safer area away from ants.  They got moldy.  Another round of harvesting, drying, pressing.  This time she demonstrated the project to family friends.  When she returned from seeing them to their car, no briquettes could be found, but the dog had specks of the remains by his mouth.

Intense interest in science fair poster session Intense interest in science fair poster session

The lesson?  There must be some tasty elements to watermeal.  That energy she measured could be coming from some desirable sugars.  We talked about commercializing this feedstock by  making dog biscuits to sell at the local farmer's market.  Maybe next year she will try converting those in the cellulose with enzymes and fermenting all the sugars to demonstrate how this can be used as liquid fuel, too.  And, as so often happens in the "real world," she can finance her research with production and sale of a related food product (and learn all kinds of regulatory lessons along the way).

It might be worth a try.  Prizes are significant, worth working for.

Here are the winners:

Middle School

1st ($1250), Samit Mohapatra, 7th Grade, Moravian Academy, Bethlehem, PA  -- Using Solar Energy to Prevent Corrosion

2nd ($750) Michelle Surine 8th Grade, Owen J. Roberts Middle School, Pottstown, PA  --  Green Energy: Can Wolffia (Watermeal) be Used as a Viable Biomass Fuel Source.

3rd ($250) Anjali Gullapally & Ujjayi Pamidigantum 8th Grade, Thomas Edison Energysmart Charter School,  Somerset NJ  -- Biogas Never Sleeps (Unlike Solar and Wind)

 

High School

1st ($1250) Solomon Heisey 12th Grade, Elizabethtown Area High School --The Power of Algae

2nd ($750) Isha Mohapatra 10th Grade,  Moravian Academy, Bethlehem, PA -- Energy Savings Through Optimization of Brick Thermal Conductivity and Crushing Strength

3rd ($250) Kerri McBride 12th Grade, McBride Homeschool, Medford, NJ  --  Investigating the Efficiency of Thermoelectric Generators in Capturing the Energy Created from Decomposing Organic Material

Science Fair Winners PDF

Held each year at a Pennsylania college or university, Energypath is funded by sponsors and proceeds from a settlement approved by the Pennsylvania Public Utility Commission during the Commonwealth’s electric deregulation proceedings in 1999.

Gusmao and Ivancic both agree that initiatives like Energypath should be repeated nationwide, if not state-by-state, then on a regional basis.  Gusmao sees this as a way to spread renewables culture and to form a new generation of “soldiers of wellness” in academia, schools and industries looking  to making a better world to live in.

 

Exclusive interviews

Dr. Ben Ballard Dr. Ben Ballard

Dr. Ben Ballard was our teacher in the biomass Energycamp. Dr. Ballard is from Renewable Energy Training Center at Morrisville State College, NY. He talked about Energycamp and biofuels.

1: How do you evaluate the importance of Energycamp for the participants?

2 – Education in biofuels is a really important piece to improve its use. What do you think about Energycamp impact for the participants’ carriers?

 

Katherine Armstrong Katherine Armstrong

Katherine Armstrong – Biomass Energycamp participant. She is a 7th grade teacher. She talks about her experience in Energycamp and its impact in her classes.

1 – How Energypath can impact in your professional activity as a teacher?

2 – In your opinion, what will be the future of biofuels in the US?

 

sarah-davis Dr. Sarah Davis

Learn more about the benefits of biofuels crops for lignocellulosic biofuels and bioenergy feedstocks listen to Dr. Sarah Davis’s interview. She also, talked about her innovative project to transform wastes into biofuels and organic fertilizer through anaerobic digestors.

Dr. Davis, from Ohio University, is an ecosystem ecologist with expertise in energy bioscience, biogeochemistry and eco-physiology. She quantifies ecosystem-level carbon sequestration and greenhouse gas fluxes in managed landscapes using experimental and modeling approaches.

1 – What is the impact of substituting traditional crops for biofuel crops? For example, replacing corn in the Midwest for switchgrass or miscanthus for ethanol.

2 – You told about environmental perspective. How about economic perspective?

3 – Are you saying we actually have markets for these grasses in the bioenergy energy industry?

4 – You present a very interesting project to transform food and agricultural wastes into biogas. Could you describe the system for us, please?

 

* Contributing author, Dr. Dan Quadros is a writer and analyst for Advanced Biofuels USA and Professor at Bahia State University, Brazil.

**Joanne Ivancic, serves as Executive Director of Advanced Biofuels USA. 

Photos by Dan Quadros or Joanne Ivancic except for last one, courtesy of Dr. Sarah Davis

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(FIT) feed prices Feedstock Flexibility Program for Bioenergy Producers feedstock logistics feedstock material feedstock prices feedstock storage feedstock terminal feedstock transportation Feedstocks fermentation ferry fertilizer fiber Fiji Financing Finland Fischer-Tropsch Synthetic Kerosene with Aromatics (FT-SKA) Fischer-Tropsch Synthetic Paraffinic Kerosene (FT-SPK) Fischer-Tropsch Synthetic Paraffinic Kerosene with Aromatics (FT-SPK/A) Fischer-Tropsch/FT fish feed fish oil fish waste fit for purpose Fixed Base Operator (FBO) flameleaf sumac flavors flax fleet turnover Fleets fleshings flex-fuel vehicles (FFV) flight tests Flightpath flixweed/tansy/herb-Sophia flood-prone soil Florida flue gas FOG (Fats/Oils/Grease) follow-the-crop food Food and Agriculture Organisation (FAO) Food and Drug Administration (FDA) food and fuel food policy food prices food processing waste food safety food security food vs biomaterials/bioplastics food vs fuel food waste for forage forage sorghum forecasts foreign oil Foreign Policy forest Forest Biomass for Energy forest biotechnology forest residue/waste Forest resources Forest Service forestry forklifts Formate formic acid fossil carbon fossil fuel Frace fracking fractionation fragrance France franchise fraud free fatty acids (FFA) Freedom of Information Act (FOIA) freight/cargo French French Guiana fructose fruit FT-SKA fuel fuel additives fuel cell electric vehicle (FCEV) fuel cells fuel economy fuel efficiency fuel injection fuel mixtures fuel molecules fuel oil fuel performance fuel prices Fuel Quality Directive (FQD) fuel registration Fuel Retailers fuel testing fuel transportation fuel use fuel wholesaler fully burdened cost fund funding fungus/fungi Furanics furfural fusel oils Future Farmers of America (FFA) Gabon gallium Gambia games gas prices gas tax/highway user fee gas-to-liquid (GTL) gasification gasoline gasoline baseline gasoline consumption gasoline mandate gasoline markets gasoline price gasoline-range hydrocarbons Gemany General Services Administration general waiver authority generators genetically engineered yeast cells genetically enhanced microbes genetically modified organism (GMO) genome Georgia Georgia (country) geothermal German Germany Gerrmany Ghana GHG (Greenhouse Gas Emissions) GHG (Greenhouse Gas Emissions) Intensity giant cane giant kelp Giant King Grass Giant Reed/Arundo GIS glass tubing gliricidia sepium global rebound effect Global South global warming global warming potential glucose glycerin glycerin standards glycerol goats gorse Governance practices) Government Accountability Office (GAO) government investment government resources government subsidies grain sorghum/milo grain speculators grains GRAND-AM grants grants-local grants-state grapefruit grapes graphene graphite GRAS (generally regarded as safe) Grasses grasses grasshoppers grease Great Green Fleet Great Lakes Greece green bonds green chemistry Green Deal EU green economy green house facility Green Jobs Green New Deal Green Racing Green Recovery green/black economy Greenland GREET Greenhouse Gases Regulated Emissions and Energy Use in Transportation Model Grenada gribble growers gua beans Guam guar Guatemala guayule Guerbet reaction Guinea Guinea Bissau Gulf states gulmohar Gumweed (grindelia squarosa) Guyana GWP gypsum h Haiti Halophytes harvest site processing harvesting Hawai'i hay hazardous waste hazelnut HBIIP Higher Blends Infrastructure Incentive Program HDCJ HDO-SAK (hydro deoxygenated synthetic aromatic kerosene) health health benefits health effects heat of combustion heat of vaporization heat-tolerance heather heating oil/fuel Heavy Duty Truck Rule heavy duty vehicles (HDV) hedging HEFA (Hydro-processed esters and fatty acids) HEFA50 helicopters hemicellulace enzymes hemicellulose hemicellulosic sugars Hemp hemp oil hemp seed herb hexanol HFO (Heavy Residual Fuel Oil) hibiscus high blend renewable fuels (HBRF) High Hydrogen Content Synthetic Paraffinic Kerosene (HHC-SPK) High Octane Fuel (HOF) High Octane Fuel Standard High Octane Gasoline (HOG) high octane low carbon (HOLC) fuel High Octane Vehicles (HOV) high performance regular high school project high sulphur fuel oil (HSFO) high-octane/low-carbon (HOLC) liquid fuels Highway Bill highway rights-of-way Highway Trust Fund history hog farmers hombayniya homogeneous-charge compression-ignition Honduras honey locust Hong Kong Honge tree nuts hops horticulture Housing and Urban Development (HUD) HPF (High Performance Fuels) HRJ (Hydrotreated Renewable Jet) human rights Hungary Hurricane Sandy HVO (Hydrotreated vegetable oil) HVO100 HVO20 HVO30 Hybrid aircraft hybrid buses hybrid locomotive hybrid ships hybrids hydrocarbon fuels Hydrocarbon-Hydroprocesed Esters and Fatty Acids (HC-HEFA-SPK) hydrodeoxygenation hydrodiesel hydrofaction hydroformylation hydrogen aircraft hydrogen carrier hydrogen combustion engines hydrogen fuel cells hydrogen leaks hydrogen pipeline hydrogen price hydrogen pumps/fueling stations hydrogen tax credit hydrogen terminal Hydrogen/Renewable Hydrogen Hydrogen/Renewable Hydrogen Price hydrogenase hydrogenation hydrogenation-derived renewable diesel (HDRD) hydrogenolysis hydropower Hydroprocessed fermented sugars to synthetic isoparaffins (HFS-SIP) hydroprocessing hydropyrolysis hydrothermal carbonization hydrothermal gasification hydrothermal liquefaction (HTL) hydrothermal treatment Hydrotreated renewable diesel (HRD) hydrotreating hydrotreatment hydrous ethanol hypoxia zone Iceland Idaho Illinois Illiois illuppai ILUC (Indirect/Induced Land Use Change) import/export incinerator ash India Indian beech tree Indian grass Indiana indirect effects indirect emissions indirect fuel use change indium Indonesia industrial burners industrial ethanol industrial gases industrial sugars industrial waste industrial waste gases IndyCar infographic Infrastructure inhibitors innovation insecticide/pesticide insects insurance integrated biorefineries integrated food/energy systems intellectual property Inter-American Development Bank inter-crop interactive map intercropping internal combustion engine (ICE) internal combustion engine (ICE)/gasoline engine ban International international balance of payments International Council on Clean Transportation (ICCT) International Energy Agency (IEA) International Maritime Organization (IMO) International Monetary Fund (IMF) International Organization for Standardization (ISO) International Renewable Energy Agency (IRENA) International Sustainability and Carbon Certification model(ISCC) International Trade International Trade Administration International Trade Commission Internships inulin invasive species Investing investment tax credit Invvesting ionic liquids Iowa IPCC Intergovernmental Panel on Climate Change Iran Iraq Ireland iridium iron iron oxide IRS (Internal Revenue Service) IS 1460 ISO 8217 (marine distillate fuel standard) ISO 9000 isobutanol isobutanol price isobutanol pump price isobutene isobutylene isomerisation isooctane isooctene isopropanol Israel Italy Ivory Coast JAA jackfruit Jamaica jamelão Japan jatobá Jatropha Jersey Jerusalem artichoke jet jet A Jet A-1 jet B Jetfuel (Sustainable Aviation Fuel (SAF)) Jimmy Carter Jobs Joint Office of Energy and Transportation jojoba Jordan JP-10 JP-4 JP-5/NATO F-44 JP-8/NATO F-34 juniper Just A MInute Just Transition jute K-12 Education Kabakanjagala kalanchoe kamani Kans grass Kansas Karanja Kazakhstan kelp Kemiri Sunan kenaf Kentucky Kenya kerosene ketones kinggrass Kiribati knotweed Knowledge Discovery Framework Korea Kosovo kudzu kukui nut kulpa kusum Kuwait Kygryzstan labels labor policy Labrador lactic acid lactose Lake County lamp oil land ownership land prices land rights land subsidence land tenure land transfer land use land use change land use policy landfill methane Landfills landscape Laos Latin America Latvia LCFS (Low Carbon Fuel Standard) lead Leadtree leaf ant Lebanon lecithin legislation Legislation-Federal 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Nevada New Brunswick new fuel approval New Guinea New Hampshire New Jersey New Mexico New South Wales New York New Zealand Newfoundland Newfoundland and Labrador next generation biofuels next generation vehicles NHRA drag racing Nicaragua nickel Niger Nigeria nipa sap nitrate leaching nitrates nitrogen Nitrogen fertiliser nitrogen starvation nitrous oxide (N2O) Niue NO2 noodles nopal North Africa North America North Carolina North Dakota North Korea Northeast northern catalpa Northern Ireland Northern Territory Northwest Territories Norwary Norway Nova Scotia NOx (nitrogen oxides) noxious weeds nuclear Nunavut nut shells nutraceuticals nutrient credit trading nutrient management nutrients nutrition oak oat hulls oat straw oats Obligated Parties/Point of Obligation (PoO) ocean-based energy Oceania octane octane price/value octanol Office of Energy Efficiency and Renewable Energy Office of Management and Budget (OMB) Office of Science and Technology Policy Office of Science and 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Private Investment Corporation overview overview/survey course owa oxygen oxygenate ozone Pakistan Palau palm palm biomass palm fatty acid distillate palm fiber palm fronds palm kernel palm kernel oil palm kernel shell palm oil Palm Oil Methyl Ester (PME) palm oil mill effluent (POME) palm oil prices palm trunk sap palm waste Paludiculture/peatland cultivation Panama pandas panic grass papaya paper Papua Indonesia Papua New Guinea paraffins Paraguay Paris Agreement parity partial waiver particulates pasture land Patent and Trademark Office (PTO) patents pathways Paulownia paulownia tree payments peach shell peaches peak oil peak oil demand peanuts/groundnuts peas pectin peela kaner pellet pellets Pennsylvania pennycress/stinkweed pentane pentanol pentose pequi perennial grains perennial grasses Performance permitting Peru pest-tolerance pesticide-tolerance pests pet food petition petroleum pharmaceuticals phase separation Philippines phosphorus photobioreactor photoelectrocatalysis 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RNG tax credit roadmap rocket fuel Romania RON (Research Octane Number) rosin rotation crops Roundtable on Sustainable Biomaterials (RSB) royalties RP-1 RTP (rapid thermal processing) rubber rubber seeds rumen ruminants rural development Rural Energy for America Program (REAP) Rural Energy Self-Sufficiency Initiative Rural Renewable Energy Pilot Program rushes Russia Russian olive rutabaga Rwanda ry rye Rye grass rye straw s saccharification SAF pipeline SAF10 SAF30 SAF40 SAFc (Sustainable Aviation Fuel certificates) Safer and Affordable Fuel Efficient Vehicles (SAFE) safety safflower sago pond weed SAIC sal tree Salicornia salt water salt-tolerant saltbush saltcedar Samoa Sanctions Santa Monica sardine oil Saskatchewan Saudi Arabia sawdust scale up Scandinavia scholarships/fellowships Science Advisory Board (SAB) Science Based Targets initiative (SBTi) Science Policy scooters Scotland scum sea level rise seaports seashore mallow seawater seaweed cultivation Seaweed/Macroalgae 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