Advanced BioFuels USA

2nd generation biofuels 3-D 3D printing 3rd generation biofuels 4-H 4H 4th generation biofuels 7% solution 45Q 81 Octane 84 octane 85 octane 87 octane 88 octane 89 octane 90 octane 91 octane 92 octane 93 octane 94 octane 95 octane 98 octane 100 octane 103 octane 105 octane 108 octane 109 octane 110 octane 113 octane 119 octane 2016 US House and Senate Campaigns 2016 US Presidential Campaign 2018 US Senate and House Campaigns Other Election Activities 2020 Election Activities 2022 A20 (20% methanol/bioethanol) Abu Dhabi acacia acetone acid acid hydrolysis adaptive evolution additional carbon additionality adequate/inadequate domestic supply Administrative Procedure Act advanced biofuel prices Advanced biofuels advanced biofuels production advanced ethanol advanced ethanol tax credit advertising campaign aerosols afforestation Afghanistan Africa AGARDA (Agriculture Advanced Research and Development Authority) agave aggregation agricultura Agricultural Conservation Easement Program (ACEP) agricultural economics Agricultural Policy Agricultural waste/residue Agriculture agroforestry agrofuels agronomy Aircraft engine emissions Air Force air pollution control Air Pollution Policy airports air quality Alabama Alaska Albania albedo Alberta albizia alcohol-to-jet (ATJ) alcohol fuel cells alcohol fuels alfalfa algae algae contamination algae cultivation algae extraction algae harvesting algae parity algae separation algal biofuels Algeria Algiers alkanes alkenes alkylate alligator fat almond almond hulls shells alternative energy vehicles alternative fuels Alternative Fuels Credit alternative fuels excise tax credit aluminum Amazon American Indian Tribes American Le Mans Series (ALMS) ammonia ammonia fiber explosion (AFEX) amylose anaerobi anaerobic digestate anaerobic digester/digestion Angola anhydrous ethanol animal fat animal feed Antactica Antarctica antibiotics antitrust APR (Aqueous Phase Reforming) aquaculture aquatic organisms Arabidopsis arabinose ARCA Archaea Architecture Arctic Argentina Arizona Arkansas Armenia Army Corps of Engineers aromatics aromatics price ARPA-E Aruba Asia ASTM ASTM 6866 ASTM D396 ASTM D975 ASTM D1655 ASTM D2880 ASTM D4054 ASTM D4806 Denatured fuel ethanol ASTM D4814 ASTM D5798 ASTM D6751 ASTM D7467 (B6-B20) ASTM D7544 ASTM D7566 (Standard Specification for Aviation Turbine Fuel Containing Synthesized Hydrocarbons) ASTM D7862 ASTM D7875 ASTM D7901 (DME-Dimethyl Ether for Fuel Purposes) ASTM D8076 ASTM D8181 ASTM E3146 ASTM standards ASTM WK55232 (D02) ASTM WK63392 ATJ-SPK (Alcohol to Jet Synthetic Paraffinic Kerosene) Atlantic Canada Atomic Energy Commission (AEC) Australia Australian pine Austria Auto manufacturer automotive Aviation biofuel aviation biofuel price aviation biofuel pumps/delivery Aviation Fuel awards/recognition Azerbaijan. B0 B2 B3 B4 B5 B6 B7 B8 B10 B11 B12.5 B15 B20 B25 B30 B33 B35 B40 B50 B75 B80 B99 B100 Babados nut tree babassu bacteria bagasse Bahamas Bahrain bamboo banana banana stems Bangladesh bankruptcy Barbados barge barley barley fiber barley protein barley straw Basque batteries Battery Electric Vehicles (BEV) bauxite beauty leaf tree beaver beer bees Belarus Belgium Belize Benin benzene Bermuda Bhutan big bluestem big data Big Food Big Oil/Oil Majors billion ton study bio-based diesel benefits bio-based economy bio-natural gas bio-NGV (natural gas for vehicles) bio-oil bio-SPK (bio derived synthetic paraffinic kerosene) biobased Biobased Markets Program biobased materials Biobased Product Manufacturing Assistance Program biochar biochemical conversion BioChemicals/Renewable Chemicals bioconversion Biocrude/Green Crude/SynCrude biodegradable biodiesel biodiesel blend wall Biodiesel co-product biodiesel EN 14214 Biodiesel Fuel Education Program biodiesel prices biodiesel production biodiesel pumps biodiesel quality biodiesel standards biodiesel tax credit biodiesel technologies biodiesel terminal biodiversity bioeconomy bioelectricity bioenergy Bioenergy Program for Advanced Biofuels Bioenergy with Carbon Capture and Storage (BECCS) Biofuel biofuel consumption Biofuel Crops biofuel distribution Biofuel Infrastructure Partnership (BIP) biofuel producer tax credit biofuels Biofuels Directive biofuels education biofuel tax credit Biogas Biogasoline/Renewable Gasoline biogenic emissions Bioheat biohydrocarbons BioIsoprene Bio LPG biomass Biomass Crop Assistance Program (BCAP) biomass hydrolysis biomass recalcitrance Biomass Research and Development initiative (BRDI) biomass sorghum Biomass to Liquid (BTL) biomass transportation biomaterials bioplastics biopower Biopreferred bioproducts biopropane bioprospecting BioRefineries Biorefinery Assistance Program (BAP) Biorefinery Renewable Chemical Biobased Product Mfgr Assistance Biotechnology birch black carbon black grease black liquor black locust blender blender pumps Blenders Credit blending blendstock Blend wall blockchain/blockcoin blue carbon boat fuel Bolivia bolt-on Bonaire bonds border tax Borneo Bosnia and Herzegovina Botswana Brachiaria bracken brackish water Brassica Brazil breweries British Columbia brownfields brown grease Brunei Btu's BTX (Benzene Toluene Xylene) Bu12.5 Bu16 Budget building block chemicals Bulgaria bunker oil Bureau of Land Management (BLM) Burkina Faso Burma Burundi buses business law business resources butadiene Butane butanediol butanol/biobutanol butanol emissions butyl acetate C3 sugar C5 sugar C6 sugar Cabo Verde cactus calibration California California Air Resources Board (CARB) Cambodia Camelina camels Cameroon Canada canarygrass Canary Islands canary reed grass candle nut cannabis canola/rapeseed canola straw cap cap-and-trade carbohydrates carbon carbon-efficient fuels carbon-neutral carbon capture and storage (CCS) carbon capture and utilization (CCU) carbon cost carbon credit carbon credit markets carbon cycle carbon debt Carbon Dioxide (CO2) carbon efficiency carbon emissions carbon f carbon fiber Carbon Intensity (CI) carbon life cycle carbon markets Carbon Monoxide (CO) carbon neutrality carbon offsets carbon price carbon recycling carbon sequestration carbon sink carbon tax carbon tax-and-dividend carbon user fee Carbon Utilization and Biogas Education Program carcinogens cardoon Caribbean carinata/brassica carinata carob cashew cashew apple CASI CAS Registry Cassava cassava price cassava pulp cassava stalk castor bean castor stalk catalysis catalysts catalytic decarboxylation catalytic hydrothermal conversion-to-jet (CHCJ) catalytic hydrothermal gasification catalytic hydrothermolysis CH pathway cattle cavitation cell culturing cellulase enzymes cellulose cellulosic biofuel Cellulosic biomass cellulosic diesel Cellulosic ethanol cellulosic ethanol price cellulosic feedstock cellulosic production tax credit cellulosic sugars Cellulosic Tax Credit cellulosic waiver credit cement Central African Republic Central America Certificate Program certification certification fuels cetane Chad change in soil condition charging stations Chesapeake Bay chicken feathers chickens Chile China chitin CIA circular economy citrus citrus greening disease Citrus Peel Clean Air Act (CAA) clean diesel Clean Power Plan (CPP) climate change Climate Change Adaptation climate change effects climate change mitigation climate legislation climate smart agriculture closed-loop system Clostridium thermocellum cloud point clover CNG Conversion kit co co-generation co-location co-operative Co-op Extension co-processing co-products CO2 Sequestration coal Coal and Biomass to Liquid (CBTL) coastal habitat conservation coastal hay Coast Guard cobalt cock's foot cocoa Coconut coffee coffee cherries coffee grounds coffee pulp cold-tolerance cold flow college/university Colombia Colorado Columbia combined heat and power (CHP) Comment Request commercial flights commercialization commissioning Commodity Credit Corporation (CCC) Commodity Futures Trading Commission (CFTC) commodity trading common reed Community activity community college Community involvement community scale Community Wood Energy Program competition compliance compost Compressed Natural Gas (CNG / R-CNG) compression-ignition engine compression ratios computer simulation concrete condensate Congo Congressional Budget Office (CBO) Connecticut Conservation Reserve Program (CRP) construction and demolition waste/debris consumer education contamination contest contrails conversion technology cooking fuel cook stoves cooperatives COP21 COP22 COP23 COP24 copper coppice cordgrass corn-based products corn/maize corn bran Corn cobs corn ethanol corn fiber corn growers corn harvest corn kernel corn meal corn oil corn oil/distillers corn oil (DCO) corn prices corn stalks corn stover corn supply corn surplus Corporate Average Fuel Economy (CAFE) standards corporate social responsibility corrosion corruption CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation) cosmetics Costa Rica cotton cotton seed hulls cottonseed oil cotton seed oil cotton stalk cottonwood Council on Environmental Quality cover crops cow rumen cracking Crambe crimes Croatia crop crop insurance cropland croton crowdfunding crude oil Cuba cup plant currency/foreign exchange policy curriculum cutworm caterpillars cyanobacteria (blue-green algae) cylindro Cyprus Czech Republic d D-3 (cellulosic) RINs D-4 (bio-based diesel) RINs D-5 (advanced biofuel) RINs D-6 (renewable fuel) RINs D-7 RINs (Cellulosic Diesel) D-8 (proposed) RINs dairy waste dandelion DARPA date palm date palm pits Dates DC DDGS (distiller’s dried grains with solubles) dead zone decanol decision-support tool deep water drilling Defense Logistics Agency (DLA) Defense Production Act deficit definitions deforestation defossilization Delaware DeltaWing demonstration scale/unit Denmark densify density Department of Agriculture (USDA) Department of Commerce Department of Defense (DOD) Department of Education Department of Energy (DOE) Department of Homeland Security Department of Justice Department of Labor Department of the Interior Department of Transportation (DOT) depolymerization depots dextrose diatoms diesel diesel-range hydrocarbons diesel-to-biodiesel conversion diesel fuel blendstock diesel prices diethyl ether digest Digital Biology dilute acid hydrolysis pretreatment DIN 51605 DIN EN 15376 (Ethanol blending component) direct-to-fuel directed evolution direct injection Direct Sugar to Hydrocarbon Conversion (DSHC) dispense distillation distilled biodiesel distributed/centralized distribution distribution capacity distribution waiver divers diversification divestment DME (dimethyl ether) Dominica Dominican Republic double cropping Drones/Unmanned Aerial Vehicles (UAV) drop-in biofuels/hydrocarbons drought drought-resistant drought tolerant dual cropping Dubai duckweed e E. coli E0 E0 price E1 E2 E3 E5 E5 price E6 E7 E8 E10 E10 price E12 E15 E15 price E15 pumps E20 E20 price E20 pumps E22 E25 E25 pumps E27 E30 E30 capable E30 certification fuel E30 optimized E30 price E30 pumps E35 E40 E50 E55 E80 E85 E85 conversion kit E85 optimized engines E85 price E85 pumps E90 E92 E95 E97 E98 E100 E100 conversion kit earthquakes East Africa Eastern Europe economic development Economic Development Administration economic modeling economic policy economics Ecuador ED95 education educational tour EERE efficiency Egypt Electric aircraft Electric Car/Electric Vehicle (EV) electric grid electricity electricity/power generation electricity price electrochemical electrochemical cell electrofuels electrolysis electrolytic cation exchange electromethanogenesis (ME) Elephant grass/Napier grass elephants El Salvador embargo emissions emissions standards EN 228 EN 590 EN 15751 EN 15940 EN 16709 end user Energy Bill energy cane energy crops energy density energy dominance energy grasses energy independence Energy Independence and Security Act of 2007 (EISA) Energy Information Administration (US EIA) energy law energy policy energy reserves Energy Return on Energy Invested (EROEI or EROI) energy security Energy Security Trust energy storage enforcement engine Engine/Fuel Co-optimization Engine Development engineering engine problems England entrepreneur environment Environmentalists environmental justice environmental policy Environmental Quality Incentive Program (EQIP) enzymatic conversion enzymatic hydrolysis enzyme production enzyme recycling enzymes Enzyme solicitation EPA (Environmental Protection Agency) equipment eRINs/electric pathway Eritrea EROEI erosion control EROWI esterification Estonia ETBE (ethyl tert-butyl ether) ethane ethanol ethanol/bioethano ethanol/bioethanol ethanol/methanol synthesis ethanol benefits ethanol blends/ethanol flex fuels ethanol blend wall ethanol emissions ethanol fire ethanol fuel cells ethanol hybrid ethanol pipeline ethanol prices ethanol production ethanol pumps ethanol tax ethanol terminal ethanol tolerance Ethiopia Ethiopian mustard ethylene ets eucalyptus Euglena European Emissions Trading System (ETS) European Union (EU) Export externalities extremophiles F-24 F-34 F-76 (Marine Diesel) F-T FAEE (fatty acid ethyl esters) FAME (Fatty Acid Methyl Ester) Farm Bill Farm Bureau farm equipment farmers farming farm policy Farm to Fleet Farm to Fly farnesane farnesene Fats fecal sludge Federal Aviation Administration (FAA) Federal Bureau of Investigation (FBI) Federal Emergency Management Agency (FEMA) federal land Federal Railroad Administration Federal Trade Commission (FTC) Federal Transit Administration (FTA) feed Feed In Tariffs (FIT) feed prices Feedstock Flexibility Program for Bioenergy Producers feedstock logistics feedstock material feedstock prices Feedstocks feedstock storage feedstock transportation fermentation ferry fertilizer F Factor fiber Fiji Financing Finland Fischer-Tropsch/FT Fischer-Tropsch Synthetic Kerosene with Aromatics (FT-SKA Fischer-Tropsch Synthetic Paraffinic Kerosene (FT-SPK) fish feed fish oil fish waste fit for purpose flameleaf sumac flavors flax fleets fleshings flex-fuel vehicles (FFV) Flightpath flight tests 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 forage forage sorghum forecasts foreign oil forest Forest Biomass for Energy forest biotechnology forest residue/waste Forest resources forestry Forest Service fossil carbon fossil fuel fracking fractionation fragrance France franchise fraud Freedom of Information Act (FOIA) free fatty acids (FFA) fructose fruit FT-SKA fuel additives 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 Gambia gas-to-liquid (GTL) gasification gasoline gasoline-range hydrocarbons gasoline baseline gasoline consumption gasoline mandate gasoline markets gasoline price gas prices gas tax/highway user fee General Services Administration general waiver authority generators genetically engineered yeast cells genetically enhanced microbes genetically modified organism (GMO) genome Georgia Georgia (country) geothermal Germany Gerogia Ghana GHG (Greenhouse Gas Emissions) giant cane Giant Reed/Arundo GIS glass tubing gliricidia sepium global rebound effect global warming global warming potential glucose glycerin glycerin standards glycerol goats Government Accountability Office (GAO) government investment government subsidies grains grain sorghum/milo grain speculators GRAND-AM grants grants-local grants-state grapefruit grapes graphene GRAS (generally regarded as safe) Grasses grasshoppers grease Great Green Fleet Great Lakes Greece green/black economy green chemistry green economy green house facility Green Jobs Green New Deal Green Racing GREET model Grenada gribble groundnut ground nut growers gua beans Guam guar Guatemala guayule Guinea Gulf states Gumweed (grindelia squarosa) Guyana GWP Haiti Halophytes harvesting harvest site processing Hawaii hazardous waste HDCJ health health benefits health effects heat-tolerance heating oil/fuel heat of combustion heat of vaporization hedging HEFA (Hydro-processed esters and fatty acids) HEFA50 hemicellulose hemicellulosic sugars Hemp hemp oil hemp seed herb HFS-SIP hibiscus High Octane Fuel (HOF) High Octane Fuel Standard High Octane Vehicles (HOV) high performance regular high school project Highway Bill highway rights-of-way Highway Trust Fund history hog farmers hombayniya homogeneous-charge compression-ignition Honduras honey locust Honge tree nuts Hong Kong hops horse bedding Horse manure horticulture Housing and Urban Development (HUD) HPF (High Performance Fuels) HRJ human rights Hungary Hurricane Sandy HVO (Hydrotreated vegetable oil) HVO100 Hybrid aircraft hybrids hydrocarbon fuels hydrofaction hydrogen hydrogenation hydrogenation-derived renewable diesel (HDRD) hydrogen fuel cells hydrogenolysis hydrogen pumps hydropower hydroprocessing hydropyrolysis hydrothermal carbonization hydrothermal liquefaction hydrothermal treatment Hydrotreated renewable diesel (HRD) hydrotreating hydrous ethanol hypoxia zone Iceland Idaho Illinois illuppai ILUC (Indirect Land Use Change) import/export incinerator ash India Indiana Indian beech tree Indian grass indirect effects indirect emissions indirect fuel use change indium Indonesia industrial ethanol industrial sugars industrial waste industrial waste gases IndyCar infographic Infrastructure 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loblolly pine locomotives lodgepole pine logistics long-term contracts Louisiana low carbon emissions Low Emission Vehicle Standards (LEV) low sulfur diesel lubricants lumber mill Luxembourg Luxemburg lysis M15 M50 macadamia macauba Macedonia Madagascar magnesium mahua Maine maize Malawi Malaysia Mali mallees Malta mamona management changes mandates manganese mango mangrove Manitoba mannose manure maple maps marginal land Marine/Maritime Biofuel marine algae Marine Corps Marine Gas Oil (MGO) market forces marketing markets/sales market share Marshall Islands Maryland Masdar Institute Massachusetts Master Limited Partnership (MLP) Mauritius Mazda meat mechanics training medical waste MEEC membranes mergers and acquisitions mesquite methanation methane/biomethane methane leaks methanol/biomethanol Mexico Michelin GreenX Challenge Michigan micro-crop microalgae microbe microbiology microorganizms microwave Mid-Atlantic Middle East Midwest mileage military military policy military reserves military specifications military strategic flexibility military strategy military use of biofuels millennium fruit millet millettia pinnata milo stover minerals mining Minnesota miscanthus misfueling missile fuel Mississippi Missouri mixed prarie mobile refinery modeling modular molasses mold molybdenum Monaco mongongo Montana Montenegro moose morama Moringa tree Morocco morula motorcycles MOVES (motor vehicle emissions simulator) modeling system MOVES2014 Mozambique MSW (Municipal Solid Waste) MTBE (Methyl tert-butyl ether) muck multi-fuel municipal/city mushroom mushroom substrate mustard seed Myanmar n-butanol nahar Namibia nanocatalysts nanocellulose nanomaterials nano particles naphtha/bionaphtha NASCAR National Academies of Science National Aeronautics and Space Administration (NASA) National Guard National Highway Traffic Safety Administration National Institute of Standards and Technology (NIST) National Institutes of Health (NIH) National Lab National Oceanic and Atmospheric Administration (NOAA) National Oilheat Research Alliance National Park Service National Research Council National Science Foundation (NSF) national security National Transportation Safety Board Native American tribes natural gas Natural Gas Act natural gas input natural gasoline natural gas prices natural gas vehicles Navy Nebraska neem neodymium Nepal net energy balance Netherlands Nevada New Brunswick Newfoundland new fuel approval New Guinea New Hampshire New Jersey New Mexico New South Wales New York New Zealand 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 northern catalpa Northern Ireland Northern Territory North Korea Norway Nova Scotia NOx (nitrogen oxides) noxious weeds NREL NTSB nucle nuclear nutraceuticals nutrient credit trading nutrient management nutrients nutrition nut shells oak oat hulls oats oat straw Obama Obligated Parties/Point of Obligation (PoO) ocean-based energy Oceania octane octane price/value octanol off-take agreements Office of Energy Efficiency and Renewable Energy Office of Management and Budget (OMB) Ohio oil oil embargo oil exploration oil monopoly oil price parity oil prices oil production oil refineries oil replacement Oils oil sands oil seed oil seed crops oil speculators oil spill oil subsidies oil taxes Oklahoma olive cake olive pits olives olive water Oman Omega-3s on-farm algae production on-farm biodiesel on-farm ethanol production on-farm natural gas production on-farm processing one pound waiver onion waste online courses Ontario OPEC (Organization of the Petroleum Exporting Countries) open fuel standard open pond optimized flex fuel vehicles orange peel orchard grass orchard prunings Oregon organic solar cells OSHA Overseas Private Investment Corporation overview overview/survey course oxygen oxygenate ozone p 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 mill effluent (POME) palm oil prices palm waste Paludiculture/peatland cultivation Panama panda pandas panic grass papaya paper Papua Papua New Guinea paraffins Paraguay parity partial waiver particulates pasture land Patent and Trademark Office (PTO) patents pathways Paulownia paulownia tree payments peaches peak oil peanut peanuts/groundnuts peas pectin pellets Pennsylvania pennycress/stinkweed pentane pentanol pentose perennial grains perennial grasses performan Performance permitting Peru pest-tolerance pesticide-tolerance pests petition pharmaceuticals phase separation Philippines phosphorus photobioreactor photosynthesis phragmites pigeon pea pilot scale pine pineapple pine nut pinion pipelines Pistacia chinensis PLA plant cell research plant cell walls plant oil plastic plastic-to-jet Plug-in Hybrid Electric Vehicle (PHEV) plume grass Poland Policy politics pollinators pollution pollution control polyfuel polymer polymerization polysaccharides pomace pomegranates pongamia pongamia pinnata poplar poppy population control Portable refinery Portugal poster sessions potamogeton potassium potato poultry litter power-to-gas prairie grasses pre-processing precision farming/agriculture precursors/biointermediates premium gasoline Pretreatment pretreatment equipment price price of water prickly pear Prince Edward Island private educational business process flow diagram producer tax credit Production tax credit productivity project insurance propagating propane propanol property insurance protectionism protein protests public comments public health policy Puerto Rico pulp Pulp/Paper Mill pump retrofit kit pumps pungam Punnai tree PVO pyrolysis Q-RIN QAP Qatar quality assurance Quality Assurance Plans (QAPs) quality improvement quantum dots Quebec Queensland quote of the week R33 rabbits race radiata pine Rahal Letterman Lanigan Racing railroad rainforest RAND rare earth metal RD20 RD30 RD99 RD100 rea reclaimed mine lands recycled oil recycled plastics recycling red red algae redcedar Reducing Emissions from Deforestation and Forest Degradation refineries reforestation regenerative braking regulations Regulations-Federal Regulations-State Reid vapor pressure (RVP) remediation remediation rice straw Renewable Chemical renewable chemical producer tax incentive renewable chemical production tax credit Renewable Diesel/Green Diesel/Paraffinic Diesel Renewable Diesel/Green Diesel price renewable diesel pumps renewable diesel tax credit renewable diesel terminal Renewable Energy Renewable Energy Directive (RED and RED II) Renewable Energy for America Program Renewable Energy Standard Renewable Energy to Fuels through Utilization of Energy-Dense Liquids (REFUEL) renewable fuel renewable fuel oil (RFO) Renewable Fuels Directive (EU) Renewable Fuel Standard (RFS2) revisions/repeal Renewable Fuel Standard (RFS and RFS2) renewable gasoline blendstock renewable hydrogen renewable marine diesel Renewable Natural Gas (RNG) Renewable Natural Gas (RNG) pumps Renewable Portfolio Standards Renewable Power Standard renewable propane Renewable Synthesized Iso-Paraffinic Fuels (SIP) renewable volume renewable volume obligation (RVO) replacement molecules Repowering Assistance Program repurpose research and development research facility resiliency resource depletion retail return on investment R Factor RFI RFS "reset" RHD100 Rhizosphere Observations Optimizing Terrestrial Sequestration (ROOTS) Rhode Island Ricardo rice rice bran oil rice hulls rice husks rice straw RICO (Racketeer Influenced and Corrupt Organizations Act) RIMPAC RINs (Renewable Identification Numbers) RINs markets RINs price risk management RJ-4 RJ-6 RME (rape methyl ester) RME180 RNA roadmap rocket fuel Romania RON (Research Octane Number) rotation crops royalties RSF2 RTP (rapid thermal processing) rubber rumen ruminants rural development Rural Energy for America Program (REAP) Rural Energy Self-Sufficiency Initiative Russia Russian olive rutabaga Rwanda rye Rye grass s saccharification Safer and Affordable Fuel Efficient Vehicles (SAFE) safety safflower sago sago pond weed SAIC SAK sales Salicornia salt-tolerant saltbush saltcedar sal tree salt water Sanctions Santa Monica sardine oil Saskatchewan Saudi Arabia sawdust scale up Scandinavia scholarships/fellowships Science Policy Scotland scum sea level rise seashore mallow seawater Seaweed/Macroalgae seaweed cultivation Section 526 Securiti Securities and Exchange Commission (SEC) Senegal Serbia sesame sewage Seychelles shale gas shale oil sheep shipping shipping containers shipworm Sierra Leone silica Silphie/cup plant/Indian cup silver silver maple simarouba Singapore sisal SK slash Slovakia Slovakia/Slovak Republic Slovenia sludge Small Business Administration small engines small refinery exemption (SRE) smokestack soap social cost social 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