Y:	GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02:	TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02B:	INDEXING SCHEME RELATING TO CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. INCLUDING HOUSING AND APPLIANCES OR RELATED END-USER APPLICATIONS
Y02B1/00:	[N1204]
Y02B10/00:	Integration of renewable energy sources in buildings
Y02B10/10:	. Photovoltaic [PV]
Y02B10/12:	. . Roof systems for PV cells
Y02B10/14:	. . PV hubs
Y02B10/20:	. Solar thermal
Y02B10/22:	. . Evacuated solar collectors
Y02B10/24:	. . Air conditioning or refrigeration systems
Y02B10/30:	. Wind power
Y02B10/40:	. Geothermal heat-pumps
Y02B10/50:	. Hydropower in dwellings
Y02B10/60:	. Use of biomass for heating
Y02B10/70:	. Hybrid systems
Y02B10/72:	. . Uninterruptible or back-up power supplies integrating renewable energies
Y02B20/00:	Energy efficient lighting technologies
Y02B20/10:	. Energy saving technologies for incandescent lamps
Y02B20/12:	. . Halogen lamps
Y02B20/12B:	. . . High voltage halogen lamps
Y02B20/14:	. . Specially adapted circuits
Y02B20/14B:	. . . for resonant dimming, e.g. by means of high frequency resonant bridges
Y02B20/14D:	. . . for pulse modulation dimming
Y02B20/14F:	. . . for phase control dimming
Y02B20/14F2:	. . . . for reverse phase control dimming
Y02B20/16:	. Gas discharge lamps, e.g. fluorescent lamps, high intensity discharge lamps [HID] or molecular radiators
Y02B20/18:	. . Low pressure and fluorescent lamps
Y02B20/18B:	. . . Fluorescent powders
Y02B20/18D:	. . . Specially adapted circuits
Y02B20/18D2:	. . . . Self-resonant bridges
Y02B20/18D4:	. . . . Controlled bridges
Y02B20/18D4B:	. . . . . with dedicated cathode heating circuitry
Y02B20/19:	. . Mechanical details of compact fluorescent lamps
Y02B20/20:	. . High pressure [UHP] or high intensity discharge lamps [HID]
Y02B20/20B:	. . . Specially adapted circuits
Y02B20/20B2:	. . . . Details of the starting circuit
Y02B20/20B2B:	. . . . . for hot restarting
Y02B20/20B4:	. . . . providing detection and prevention of anomalous lamp operating conditions
Y02B20/22:	. . Other discharge lamps
Y02B20/30:	. Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Y02B20/32:	. . Electroluminescent panels (not used, see subgroups)
Y02B20/32B:	. . . Specially adapted circuits
Y02B20/34:	. . inorganic LEDs (not used, see subgroups)
Y02B20/34B:	. . . Specially adapted circuits
Y02B20/34B2:	. . . . for driving the LEDs directly from an AC voltage source, e.g. with only passive components
Y02B20/34B4:	. . . . Linear regulators
Y02B20/34B4B:	. . . . . configured as a current source
Y02B20/34B6:	. . . . Switching regulators
Y02B20/34B6B:	. . . . . configured as a current source
Y02B20/34B8:	. . . . Resonant bridges
Y02B20/36:	. . Organic LEDs, i.e. OLEDs for general illumination
Y02B20/38:	. . Constructional details
Y02B20/38B:	. . . Adaptation to Edison sockets
Y02B20/38D:	. . . Retrofitting in tubes
Y02B20/40:	. Control techniques providing energy savings
Y02B20/42:	. . based on timing means or schedule
Y02B20/44:	. . based on detection of the user
Y02B20/44B:	. . . Controlling the access to premises
Y02B20/46:	. . based on detection of the illumination level
Y02B20/48:	. . Smart controllers
Y02B20/70:	. Used in particular applications
Y02B20/72:	. . in street lighting
Y02B30/00:	Energy efficient heating, ventilation or air conditioning [HVAC]
Y02B30/08:	. relating to domestic heating, space heating or domestic hot water heating or supply systems [DHW]
Y02B30/10:	. . using boilers (not used, see subgroups)
Y02B30/10B:	. . . Condensing boilers
Y02B30/10B2:	. . . . Moistening the combustion air with condensate from the combustion gases
Y02B30/10B4:	. . . . Removing condensate from the heater
Y02B30/10D:	. . . Modular boilers, i.e. connecting different sections within a boiler or cascading multiple boilers
Y02B30/12:	. . Hot water central heating systems using heat pumps
Y02B30/12B:	. . . Self contained heating units using heat pumps
Y02B30/12B2:	. . . . combined with the use of heat accumulated in storage masses
Y02B30/14:	. . Central heating systems having more than one heat source
Y02B30/16:	. . Central heating systems using steam or condensate extracted or exhausted from steam engine plants
Y02B30/16B:	. . . Central heating systems using condensate extracted or exhausted from steam engine plants
Y02B30/16D:	. . . Central heating systems operating with exhaust steam
Y02B30/18:	. . Domestic hot-water supply systems using recuperated or waste heat
Y02B30/20:	. . Heat consumers: i.e. devices to provide the end user with heat
Y02B30/22:	. . . Low temperature radiators: i.e. convectors, radiators or a mixture of both with increased heat-exchange surface being suitable for systems working with a low temperature heat transfer medium
Y02B30/24:	. . . ceiling, wall or underfloor heating arrangements for being used in combination with water central heating system
Y02B30/26:	. . . Radiant panels electrically heated
Y02B30/28:	. . . Direct fired air heaters: i.e. the air being in direct contact with the exhaust gases of the burner
Y02B30/50:	. Systems profiting of external/internal conditions (not used, see subgroups)
Y02B30/52:	. . Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Y02B30/54:	. . Free-cooling systems (not used, see subgroups)
Y02B30/54B:	. . . Air based, e.g. mixed outside air and recirculation systems
Y02B30/54D:	. . . Cooling using dew point control and direct humidifiers
Y02B30/54F:	. . . Using energy from the ground by air circulation, e.g. "Canadian well"
Y02B30/56:	. . Heat recovery units (not used, see subgroups)
Y02B30/56B:	. . . Air to air
Y02B30/56D:	. . . Water to water
Y02B30/60:	. Other technologies for heating or cooling (not used, see subgroups)
Y02B30/62:	. . Absorption based systems
Y02B30/62B:	. . . integrating combined heat and power generation [CHP] systems, i.e. trigeneration
Y02B30/64:	. . Adsorption based systems
Y02B30/66:	. . Magnetic cooling
Y02B30/70:	. Efficient control or regulation technologies (empty, see subgroups)
Y02B30/72:	. . Electric or electronic refrigerant flow control
Y02B30/74:	. . Technologies based on motor control (not used, see subgroups)
Y02B30/74B:	. . . Speed regulation of the compressor
Y02B30/74D:	. . . Condensing pressure control
Y02B30/74F:	. . . Speed regulation of pumps in flow control systems
Y02B30/74H:	. . . Speed regulation of fans in flow control systems
Y02B30/74J:	. . . Speed regulation of fans and pumps in cooling towers
Y02B30/76:	. . Centralised control (not used, see subgroups)
Y02B30/76B:	. . . of heating or domestic hot water [DHW] systems
Y02B30/76D:	. . . of refrigeration machines, plants or systems, including combined heating and refrigeration systems or heat-pumps
Y02B30/76F:	. . . of air distribution systems
Y02B30/78:	. . Ventilation adapted to air quality
Y02B30/80:	. Ultrasonic humidifiers
Y02B30/90:	. Passive houses; Double facade technology (not used, see subgroups)
Y02B30/92:	. . with air flow into the conditioned premises or facilities
Y02B30/94:	. . Improving the thermodynamic properties of the premises or facilities
Y02B40/00:	Technologies aiming at improving the efficiency of home appliances
Y02B40/10:	. Relating to domestic cooking (not used, see subgroups)
Y02B40/12:	. . Induction cooking in kitchen stoves (not used, see subgroups)
Y02B40/12B:	. . . Control circuit or coil power supply
Y02B40/12D:	. . . Coil arrangements
Y02B40/14:	. . Microwave ovens (not used, see subgroups)
Y02B40/14B:	. . . Control circuit or magnetron power supply
Y02B40/14D:	. . . Load impedance matching, e.g. by acting upon phase or frequency
Y02B40/16:	. . Improved cooking stoves (not used, see subgroups)
Y02B40/16B:	. . . Fuel efficient biomass cooking stoves
Y02B40/16D:	. . . Fuel efficient gas cooking stoves
Y02B40/18:	. . Solar cooking stoves or furnaces
Y02B40/30:	. Relating to refrigerators or freezers (not used see subgroups)
Y02B40/32:	. . Motor speed control of compressors or fans
Y02B40/34:	. . Thermal insulation
Y02B40/40:	. Relating to dish-washers (not used, see subgroups)
Y02B40/42:	. . Motor speed control of pumps
Y02B40/44:	. . Heat recovery e.g. of washing water
Y02B40/46:	. . Optimisation of water quantity, e.g. of hot water
Y02B40/50:	. Relating to washing machines
Y02B40/52:	. . Motor speed control of drum or pumps
Y02B40/54:	. . Heat recovery, e.g. of washing water
Y02B40/56:	. . Optimisation of water quantity
Y02B40/58:	. . Solar heating
Y02B40/70:	. Relating to laundry dryers (not used, see subgroups)
Y02B40/72:	. . Motor speed control of drum or fans
Y02B40/74:	. . Solar heating
Y02B40/80:	. Related to vacuum cleaners (not used, see subgroups)
Y02B40/82:	. . Motor speed or motor power consumption control
Y02B40/84:	. . Motor overheating or overloading prevention
Y02B40/90:	. Energy efficient batteries, ultracapacitors, supercapacitors or double-layer capacitors charging or discharging systems or methods specially adapted for portable applications
Y02B50/00:	Energy efficient technologies in elevators, escalators and moving walkways
Y02B50/10:	. in elevators
Y02B50/12:	. . Energy saving technologies
Y02B50/12B:	. . . by adapted call allocation
Y02B50/12D:	. . . by adapting the motion profile
Y02B50/12F:	. . . by control of auxiliary devices
Y02B50/14:	. . Energy recuperation technologies
Y02B50/14B:	. . . with electrical storage
Y02B50/14D:	. . . with mechanical storage
Y02B50/14F:	. . . with pressure storage
Y02B50/14H:	. . . by delivering current to the grid for hydraulic elevators
Y02B50/20:	. in escalators and moving walkways
Y02B50/22:	. . Energy saving technologies
Y02B50/22B:	. . . by adapting the motion profile
Y02B50/24:	. . Energy recuperation technologies
Y02B60/00:	Information and communication technologies [ICT] aiming at the reduction of own energy use
Y02B60/10:	. Energy efficient computing
Y02B60/12:	. . Reducing energy-consumption at the single machine level, e.g. processors, personal computers, peripherals, power supply
Y02B60/12B:	. . . involving a plurality of components
Y02B60/12D:	. . . acting upon the main processing unit
Y02B60/12D2:	. . . . Low-power processors
Y02B60/12D4:	. . . . Performance modes
Y02B60/12D6:	. . . . Frequency modification
Y02B60/12D8:	. . . . Clock disabling
Y02B60/12F:	. . . Access, addressing or allocation within memory systems or architectures, e.g. to reduce power consumption or heat production, or to increase battery life
Y02B60/12H:	. . . Interconnection, or transfer of information or other signals between, memories, peripherals or central processing units
Y02B60/12J:	. . . Acting upon peripherals
Y02B60/12J10:	. . . . the peripheral being a cursor control device
Y02B60/12J12:	. . . . the peripheral being a keyboard
Y02B60/12J14:	. . . . the peripheral being a modem
Y02B60/12J16:	. . . . the peripheral being a PCMCIA card
Y02B60/12J18:	. . . . the peripheral being a printer
Y02B60/12J18B:	. . . . . Data transfer to print units
Y02B60/12J2:	. . . . the peripheral being a bus
Y02B60/12J4:	. . . . the peripheral being a memory control unit [MCU]
Y02B60/12J6:	. . . . the peripheral being a display
Y02B60/12J8:	. . . . the peripheral being disc or storage devices
Y02B60/12J8B:	. . . . . The peripheral being a CD-ROM unit
Y02B60/12L:	. . . Cooling means for computing equipment provided with thermal management
Y02B60/12N:	. . . Power management
Y02B60/12N10:	. . . . Power strips aiming to energy efficient operation
Y02B60/12N2:	. . . . Selective power distribution
Y02B60/12N4:	. . . . Controlling the supply voltage
Y02B60/12N6:	. . . . Monitoring user presence
Y02B60/12N8:	. . . . Battery monitoring
Y02B60/14:	. . Reducing energy-consumption by means of multiprocessor or multiprocessing based techniques, other than acting upon the power supply
Y02B60/14B:	. . . Resource allocation
Y02B60/14D:	. . . Scheduling
Y02B60/14F:	. . . Increasing resource utilisation, e.g. virtualisation, consolidation
Y02B60/14H:	. . . Load distribution
Y02B60/16:	. . Reducing energy-consumption in distributed systems
Y02B60/16B:	. . . Delegation or migration
Y02B60/16D:	. . . Monitoring
Y02B60/16F:	. . . Resource sharing
Y02B60/18:	. . Reducing energy consumption at software or application level
Y02B60/18B:	. . . Compilation
Y02B60/18D:	. . . Installation
Y02B60/18F:	. . . At application level, i.e. feedback, prediction, usage patterns
Y02B60/18H:	. . . Suspending or hibernating, performance or eco-modes, operating system support, e.g. advanced configuration and power interface [ACPI]
Y02B60/18J:	. . . Information retrieval in databases
Y02B60/30:	. Techniques for reducing energy-consumption in wire-line communication networks
Y02B60/31:	. . using reduced link rate, e.g. adaptive link rate, not involving auto-negotiation
Y02B60/32:	. . using subset functionality
Y02B60/33:	. . by selective link activation in bundled links
Y02B60/34:	. . by operating in low-power or sleep mode
Y02B60/35:	. . . specifically suitable for Ethernet, e.g. IEEE802.3az
Y02B60/36:	. . . specifically suitable for DSL
Y02B60/40:	. High level techniques for reducing energy-consumption in communication networks
Y02B60/41:	. . by proxying, i.e. delegating network functionalities while in low-power mode, e.g. ECMA 393 standard
Y02B60/42:	. . by energy-aware routing
Y02B60/43:	. . by signaling and coordination, e.g. signaling reduction, link layer discovery protocol [LLDP], control policies, green TCP
Y02B60/44:	. . . specifically suitable for Ethernet, e.g. IEEE802.3az
Y02B60/45:	. . . specifically suitable for DSL
Y02B60/46:	. . Application modification for reducing energy-consumption, e.g. green peer-to-peer,
Y02B60/50:	. Techniques for reducing energy-consumption in wireless communication networks
Y02B70/00:	Technologies for an efficient end-user side electric power management and consumption
Y02B70/10:	. Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion (not used, see subgroups)
Y02B70/12:	. . Power factor correction technologies for power supplies
Y02B70/12B:	. . . Passive technologies
Y02B70/12D:	. . . Active technologies
Y02B70/14:	. . Reduction of losses in power supplies (not used, see subgroups)
Y02B70/14B:	. . . Low frequency active rectification, i.e. from a low frequency AC grid or generator
Y02B70/14D:	. . . Converters benefiting from a resonance, e.g. resonant or quasi-resonant converters (not used, see subgroups)
Y02B70/14D2:	. . . . in non-galvanically isolated DC/DC converters
Y02B70/14D4:	. . . . in galvanically isolated DC/DC converters
Y02B70/14D6:	. . . . in DC/AC or AC/DC converters
Y02B70/14D8:	. . . . in AC/AC converters
Y02B70/14F:	. . . Synchronous rectification (not used, see subgroups)
Y02B70/14F2:	. . . . in non-galvanically isolated DC/DC converters
Y02B70/14F4:	. . . . in galvanically isolated DC/DC converters
Y02B70/14H:	. . . by using wide band gap based power semiconductors, i.e. power converters integrating silicon carbide [SiC], gallium nitride [GaN], gallium arsenide [GaAs] or diamond power switches
Y02B70/14J:	. . . Other technologies for reduction of losses, e.g. non-dissipative snubbers, diode reverse recovery losses minimisation, zero voltage switching [ZVS], zero current switching [ZCS] or soft switching converters
Y02B70/16:	. . Efficient standby or energy saving modes, e.g. detecting absence of load or auto-off
Y02B70/30:	. Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level (smart grids supporting the management or operation of end-user stationary applications in general, including technologies with no associated climate change mitigation effect Y04S20/00) (not used, see subgroups)
Y02B70/32:	. . End-user application control systems (not used, see subgroups)
Y02B70/32B:	. . . characterised by the aim of the control (not used, see subgroups)
Y02B70/32B2:	. . . . General power management systems
Y02B70/32B4:	. . . . Demand response systems, e.g. load shedding, peak shaving
Y02B70/32B6:	. . . . The system entering an energy saving mode, i.e. sleep, low-power or standby modes
Y02B70/32B8:	. . . . Domotics or building automation systems
Y02B70/32B8B:	. . . . . involving home automation communication networks
Y02B70/32D:	. . . characterised by the end-user application (not used, see subgroups)
Y02B70/32D2:	. . . . The end-user application being or involving home appliances
Y02B70/32D2B:	. . . . . The home appliances being or involving heating ventilating or air conditioning [HVAC] units
Y02B70/32D2D:	. . . . . The system involving the remote operation of lamps or lighting equipment
Y02B70/32D4:	. . . . The end-user application involving uninterruptible power supply [UPS] systems or standby or emergency generators (for uninterruptible power supply systems or standby or emergency generators in the last power distribution stages Y04S20/12)
Y02B70/34:	. . Smart metering supporting the carbon neutral operation of end-user applications in buildings (not used, see subgroups)
Y02B70/34B:	. . . Systems which determine the environmental impact of user behavior
Y02B70/34D:	. . . Systems which monitor the performance of renewable electricity generating systems, e.g. of solar panels
Y02B80/00:	Architectural or constructional elements improving the thermal performance of buildings
Y02B80/10:	. Insulation
Y02B80/12:	. . Slab shaped vacuum insulation
Y02B80/14:	. . Slab shaped aerogel insulation
Y02B80/20:	. Windows or doors
Y02B80/22:	. . Glazing
Y02B80/24:	. . . Vacuum glazing
Y02B80/26:	. . . Other special glazing, e.g. aerogel
Y02B80/28:	. . Wooden or plastic frames with extra insulation
Y02B80/30:	. Roofs
Y02B80/32:	. . Roof garden systems
Y02B80/34:	. . Roof coverings with high solar reflectance
Y02B80/40:	. Floors specially adapted for storing heat or cold
Y02B80/50:	. Light dependent control systems for sun shading
Y02B90/00:	Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Y02B90/10:	. Applications of fuel cells in buildings
Y02B90/12:	. . Cogeneration of electricity with other electric generators
Y02B90/14:	. . Emergency, uninterruptible or back-up power supplies integrating fuel cells
Y02B90/16:	. . Cogeneration or combined heat and power generation, e.g. for domestic hot water
Y02B90/18:	. . Fuel cells specially adapted to portable applications, e.g. mobile phone, laptop
Y02B90/20:	. Systems integrating technologies related to power network operation and communication or information technologies mediating in the improvement of the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as enabling technology in buildings sector (not used, see subgroups) (Smart grids supporting the management or operation of end-user stationary applications in general, including technologies with no associated climate change mitigation effect Y04S20/00)
Y02B90/22:	. . Systems characterised by the monitored, controlled or operated end-user elements or equipments (not used, see subgroups)
Y02B90/22B:	. . . the elements or equipments being or involving energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators involved in the last power distribution stages (energy storage units involved in power generation, transmissionor distribution Y04S10/14; uninterruptible power supply systems or standby or emergency generators as end-user application Y04S20/24D)
Y02B90/22D:	. . . the elements or equipments being or involving protection elements, switches, relays or circuit breakers
Y02B90/22F:	. . . the elements or equipments being or involving power plugs, sockets, adapters or power strips
Y02B90/22H:	. . . the element or elements being a direct current power network, grid or distribution line
Y02B90/24:	. . Smart metering mediating in the carbon neutral operation of end-user applications in buildings (not used, see subgroups)
Y02B90/24B:	. . . Systems characterised by remote reading
Y02B90/24B2:	. . . . from a fixed location
Y02B90/24B4:	. . . . from a mobile location
Y02B90/24B6:	. . . . the remote reading system including mechanisms for turning on/off the supply
Y02B90/24D:	. . . Displaying of usage with respect to time, e.g. monitoring evolution of usage, relating usage to weather conditions
Y02B90/24F:	. . . Utility meters which are networked together, e.g. within a single building
Y02B90/24H:	. . . Retrofitting of installed meters
Y02B90/24J:	. . . Systems oriented to metering of generated energy or power
Y02B90/26:	. . Communication technology specific aspects (not used, see subgroups)
Y02B90/26B:	. . . Details of the transmission structure or support between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment (not used, see subgroups)
Y02B90/26B10:	. . . . using Internet
Y02B90/26B2:	. . . . using the power network as support for the transmission
Y02B90/26B2B:	. . . . . using pulsed signals
Y02B90/26B2D:	. . . . . using modification of a parameter of the network power signal
Y02B90/26B4:	. . . . using a data transmission bus
Y02B90/26B6:	. . . . using phone lines
Y02B90/26B8:	. . . . using wireless data transmission
Y02B90/26B8B:	. . . . . By means of mobile telephony
Y02B90/26D:	. . . Aspects related to the treatment or conditioning of data or signals (not used, see subgroups)
Y02B90/26D2:	. . . . associated with communication via dedicated transmission supports
Y02B90/26D4:	. . . . associated with communication via the power transmission network