This volume is proceeding of International conference "Molecular and Nanoscale Systems for Energy Conversion" The monograph is including information about: ENERGY POTEN ANAEROBIC DIGESTION OF WASTES PRODUCED IN RUSSIA VIA BIOGAS AND MICROBIAL FUEL CELL TECHNOLOGIES, NEW PHOTOVOLTAIC COMPOSITE MATERIALS BASED ON FULLERENE AND PHTHALOCYANINE DERIVATIVES, i VOLTAIC EFFECT IN THE MOLECULAR COMPLEXES OF (DTDS)2 C60, PORPHYRIN DYADS WITH POTENTIAL USE IN SOLAR ENERGY CONVERSION, MOLECULAR PHOTOVOLTAIC SYSTEMS SIMULATING PHOTOSYNTHESIS, AS PERSPECTIVE SOLAR ENERGY CONVERTERS, SUPER-RAPID PROCESSES FROM HIGHER EXCITED SINGLET STATES OF TRYPTOPHAN. THE VIOLATION OF THE VAVILIOV LOW, BIOSENSOR APPROACH TO ASSESSMENT OF EFFICIENCY OF MEDIATORS FOR THEIR APPLICATION IN MICROBIAL BIOFUEL CELLS, THE QUANTUM-MECHANICAL MODEL SUPERFICIAL ATOMIC HYDROGENATION SINGLE-WALL CARBON NANOTUBE, HYBRID SILICA-ZIRCONIA FILMS LOADED WITH TITANIA NANOPARTICLES AND TITANIA-BASED NANOCONTINERS: NOVEL MATERIALS FOR THIN-FILM PHOTOCATALYSTS AND PHOTOCONTROLLABLE COATINGS, POWER CHARACTERISTICS OF MICROBIAL FUEL CELL BASED ON GLUCONOBACTER CELL SUSPENSION AND 2, 6-DICHLOROPHENOLINDOPHENOL AS ELECTRON TRANSPORT MEDIATOR, PHOTODESTRUCTION OF CHLOROPHYLL IN NON-BIOLOGICAL SYSTEMS, THE CURRENT-VOLTAGE CHARACTERISTIC OF CARBON NANOTUBES IN NON LINEAR MODEL, CHARACTERIZATION OF PHOTOCATALYTIC PROPERTIES OF MESOPOROUS TIO2 PREPARED USING TEMPLATING METHOD, HYDROGEN ATOM AS A RESULT OF DISSOCIATIVE ATTACHMENT OF LOW ENERGY ELECTRONS (BELOW IONIZATION OR ELECTRONIC EXCITATION THRESHOLDS) IN FROZEN AQUEOUS PHOSPHATE SOLUTIONS, PHOTORESPONSE OF COLLOIDAL QUANTUM DOTS – CONDUCTING SNO2 MATRIX COMPOSITE, HYBRID TITANIUM OXIDE – POLYMER NANOSTRUCTURED COMPOSITES FOR ENERGY CONVERSION DEVICES: STRUCTURE AND PROPERTIES, ROLE OF GLU181 IN THE MECHANISM OF PROTONATED SCHIFF BASE LINKAGE STABILIZATION IN DARK-ADAPTED VISUAL PIGMENT RHODOPSIN: MOLECULAR DYNAMICS SIMULATION, CREATING OF A LABORATORY MODEL STAND FOR DEVELOPMENT OF OIL BIODESTRUCTION SUPPRESSION METHODS IN INDUSTRIAL AND NATURAL STORAGES