184 results about "Renewable energy system" patented technology

The present invention is an integrated system for the production of hydrogen and the removal of carbon dioxide from the air or gas streams. The integrated system includes an energy source for generating electrical energy and a water source coupled to the energy source. The water source includes ionic electrolytes. The energy source supplies energy to the water source to electrolyze water to produce hydrogen gas, oxygen gas, acid and base. The carbon dioxide reacts with the base. In some embodiments, the energy source is a renewable energy source. The integrated system produces substantially no carbon dioxide and when combined with a renewable energy source, produces clean hydrogen fuel and reduces atmospheric carbon dioxide, resulting in carbon dioxide negative energy and manufacturing strategies.

Provided is a consumer to industrial scale renewable energy based quintuple-generation systems and energy storage facility. The present invention has both mobile and stationary embodiments. The present invention includes energy recovery, energy production, energy processing, pyrolysis, byproduct process utilization systems, separation process systems and handling and storage systems, as well as an open architecture for integration and development of additional processes, systems and applications. The system of the present invention primarily uses adaptive metrics, biometrics and thermal imaging sensory analysis (including additional input sensors for analysis) for monitoring and control with the utilization of an integrated artificial intelligence and automation control system, thus providing a balanced, environmentally-friendly ecosystem.

An improved micro-inverter apparatus is disclosed for intelligently controlling energy harvest from photovoltaic solar panels based on one or more adjustable, user-defined variables. The improved micro-inverter apparatus may include a microcontroller configured to monitor the operating temperature of its micro-inverter and control the power harvested from associated solar panels in order to ensure the operating temperature of the micro-inverter does not approach a level that would damage the micro-inverter's circuitry or other components. Similarly, the micro-inverter apparatuses' microcontroller may be configured to monitor the total harmonic distortion of the micro-inverter's AC power output and control the power harvested from associated solar panels in order to ensure the total harmonic distortion of the AC power output does not exceed a threshold level.

This disclosure generally relates to stabilizing energy provided by an energy source, and more particularly to systems and methods for using multiple types of energy storage devices to selectively capture and provide energy. An energy source provides energy, and the energy storage devices selectively capture energy provided by the energy source in excess of an immediate energy requirement of a load and selectively provide energy when the immediate energy requirement of the load exceeds the energy provided by the energy source.

A power compensation apparatus for a renewable energy system includes a plurality of converter modules positioned between any two phases of a three-phase AC electrical grid, each converter module including a plurality of inverter circuits connected in series. Each inverter circuit includes an energy storage unit for providing a direct current (DC) voltage; a capacitor connected to the energy storage unit; and an H-bridge circuit converting the DC voltage into an alternating current (AC) voltage. The converter modules perform reactive power compensation and active power regulation on the electrical grid in a delta connection. A plurality of converter modules are respectively positioned between any two phases of the electrical grid in a delta connection, so as to keep the voltage of the electrical grid continuously stable when the voltage of the electrical grid fluctuates, and also compensate load current when system load is not balanced.

The Portable Renewable Energy System for Enhanced Oil Recovery (“PRESEOR”) is a truck mobile system that reforms biomass into CO2 and hydrogen, following which the gases are separated, with the CO2 sequestered underground for enhanced oil recovery (EOR) and the hydrogen used to generate several megawatts of carbon-free electricity. In contrast to large central power plants that are generally not well-located to support EOR, the small PRESEOR can go directly to the oilfields where it is needed, and do so in a timely manner. The PRESEOR sequesters more biomass-derived carbon than is released by the burning of the oil it yields, thereby producing not only carbon-free electricity but carbon-free oil. Using PRESEOR, over 80 billion barrels of U.S. oil would be made recoverable, without the need to drill new wells in pristine areas.

A system and method are disclosed comprising coupling a compression ignition engine (17) to an AC electrical generator (18) and / or a DC hompolar generator (19), wherein the homopolar generator (19) produces an electric current which is used to electrolyse water into hydrogen and oxygen. The hydrogen from the water electrolysis process may be used as a renewable fuel, either in the form of a gaseous fuel or a reactant in a fuel cell. The oxygen from the water electrolysis unit (23) may be used to produce an oxygen enriched combustion atmosphere in the engine (17). The oxygen may optionally be used as a reactant, along with the hydrogen, in a fuel cell.

Normally hydroelectric dam powerhouses use river flow once before discharging it as turbulent tailwater, ineffective to spin turbines. The present invention uses tapered channels to confine and constrict turbulent tailwater into laminar flow that drives turbines both submersible and floatable utilizing the same water three times concurrently to generate new electricity. Channels originate adjacent to draft tube outlets, constrict in the downstream direction to create narrow necks where turbine / generators benefit from debris free, increased velocity and laminar flows to generate electricity. Hydroelectricity uses zero fuel, creates zero waste and has zero carbon dioxide emissions. Structures are uncomplicated, construction is within project boundaries minimizing environmental impacts and speeding projects coming online. New facilities are protected by existing dam security. Hydroelectricity replaces less dependable renewable energy systems.

An improved interface for renewable energy systems is disclosed for interconnecting a plurality of power sources such as photovoltaic solar panels, windmills, standby generators and the like. The improved interface for renewable energy systems includes a multi-channel micro-inverter having novel heat dissipation, novel mountings, electronic redundancy and remote communication systems. The improved interface for renewable energy systems is capable of automatic switching between a grid-tied operation, an off grid operation or an emergency power operation. The interface provides for monitoring and for detecting performance and / or faults in power sources such as photovoltaic solar panels.

An improved interface for renewable energy systems is disclosed for interconnecting a plurality of power sources such as photovoltaic solar panels, windmills, standby generators and the like. The improved interface for renewable energy systems includes a multi-channel micro-inverter having novel heat dissipation, novel mountings, electronic redundancy and remote communication systems. The improved interface for renewable energy systems is capable of automatic switching between a grid-tied operation, an off grid operation or an emergency power operation.

A business tuning system collects streams of informational reports from remote renewable energy systems. A database holds the information and associates it with a particular renewable energy business operation. A pre-processor semi-structures the information into failure analyses, sales histories, performance results, regional trends, seasonal trends, and demographics. A data mining processor provides for knowledge discovery and prediction from semi-structured information related to said particular renewable energy business operation.

A device for controlling a single-phase power conditioner for a renewable energy system. The device comprises: a power system, providing alternating current (AC) utility power; a renewable energy system, using a natural resource so as to generate direct current (DC) power; a DC-to-DC converter, accepting the DC power generated by the renewable energy system so as to convert an input DC voltage of the DC power to an output DC voltage at a voltage level different from the DC input voltage; a grid-tied power conditioner, transforming voltage levels of the AC power and DC power; a controller, issuing a control signal for controlling the grid-tied power conditioner; and a load, consuming electricity by way of the grid-tied power conditioner.

A distributed renewable energy system includes a renewable energy generating module having an array of renewable energy generators connected to a population of distributed power inverters. The distributed renewable energy system also includes a distributed energy metering module having a data aggregating unit that receives output energy data from the population of distributed power inverters and a data processing unit that calculates a revenue grade output energy from the output energy data based on a tolerance probability characteristic of the output energy data. The distributed renewable energy system additionally includes a distributed energy reporting module that reports the revenue grade output energy. A method of measuring distributed renewable energy is also provided.

An energy system includes renewable energy sources each including an inverter. The renewable source inverters are coupled to a distribution line in a manner wherein power combines additively. The system also includes an energy storage source including an energy storage inverter coupled to the distribution line between the point of interconnection and the renewable source inverters. Finally, a control system is structured to: (i) control a voltage at the point of interconnection by controlling a renewable source reactive power output by the renewable source inverters and an energy storage reactive power output by the energy storage inverter, and (ii) provide power ramp rate control for the renewable energy system by controlling at least one of a renewable source real power output by each of the renewable source inverters and a first energy storage real power output by the energy storage inverter.

A water based renewable energy system is shown which uses tidal flow and an associated water wheel / weir assembly to provide pumping power for the system. A water wheel powered pump and associated piping are used to raise water from a lower lake reservoir to a higher storage lake reservoir. The water which is pumped to the higher storage lake can be released to a generator located at a lower elevation and then returned to the lower storage lake. The cycle can then be repeated by again pumping water from the lower lake to the upper lake. The pumped storage provides flow and head to generate electric power through the turbine generator.

A computer processor implemented method of determining system configuration information of a monitored electrical system without the need for user input by constructing a data set of a standard performance curve for at least one system type; defining at least one characteristic feature for each system type; determining the required data to identify at least one system type according to at least one of the standard performance curve and characteristic feature; remotely acquiring the required data; comparing system acquired electrical system data to at least one system type and correlated standard performance curves and correlated characteristic features to provide system configuration information for at least one monitored electrical system to provide the specific type of monitored electrical system.

A three-port bidirectional DC-DC converter for grid-interactive renewable energy source system applications. The three-phase topology is suitable for residential power requirements. The control of the backup battery system and the renewable energy source system are naturally decoupled. In addition, the port interface with the renewable energy is current type, which can implement maximum power point tracking (MPPT) and soft switching under wide variations in the renewable energy source terminal voltage.

A sales method provides for the demonstration, performance forecasting, financing, leasing, renting, power purchase agreement, tax-advantages, and group benefits of complete renewable energy systems. Even before a sales call is attempted, a system integrator has arranged a special group of lenders and investors that will fund any project initiated, has engaged credit services to check consumer credit files, has collected operational data from a number of its own systems, has created forecast models of performance, and arranged open-membership groups to which a new user can join immediately to share in collective bargaining with utilities, spread down-time risk and expense, utilize tax incentives, etc.

A method of securitizing at least one on premises renewable power systems, the method comprising: providing at least one customer to provide a group of customers, wherein at least one customer has a on premises renewable power system and on premises renewable power system has associated on premises renewable power system characteristics and each customer has customer variables; providing a contractual relationship between each customer and a third party; determining the anticipated recurring fees for the group of customers according to the on premises renewable power system characteristics and customer variables; determining the anticipated monthly cash flow of group of customers according to the anticipated recurring fees; and securitizing the on premises renewable power system according to anticipated monthly cash flow and customer variables.

The invention discloses a transmission network planning method considering flexible supply-demand balance, which comprises the following steps: according to flexible demand and supply under differenttypes and time scales, an evaluation index of power system flexibility considering supply-demand balance being established; based on the evaluation index of power system flexibility, considering economy, reliability and security, a bilevel transmission network expansion planning model being established; based on the bilevel expansion programming model of transmission network, the transmission network being planned. The method effectively solves the problem that the discarding of renewable energy in current system is seriously disjointed with the construction of power source and the planning ofpower network, at the same time, the invention can effectively solve the problem of economical and safe transmission of renewable energy pow generation in a high-proportion renewable energy system, can make scientific and effective guidance for grid planning work, and finally realize the optimization of resource utilization and the maximization of social benefit.

A renewable energy system maintenance method comprises network server based system for monitoring and repairing, for example, a solar power installation. Such comprises solar panels to convert sunlight to DC electricity, one or more inverters to convert the DC to AC electricity, and a metered utility connection for selling to or offsetting energy charges for AC electricity from an electric utility. A monitor with sensors and connections to the inverter provides system operation measurements and data through a wireless or wired connection the Internet. A centralized server collects measurements and data from many solar installation monitors and analyzes the inputs to provide useful information to the users and their systems integrator and third parties. In particular, such information is employed in several ways to conduct various parts of a solar energy business.

The invention discloses a microgrid layered and synchronous control method. The microgrid adopts the double-perturbation synchronous control strategy based on the Fourier transformation to perform synchronous grid connection. In the case of island or grid-connection model of the microgrid, microgrid PCC (point of common coupling) frequency and voltage amplitude is detected by SFR-PLL (synchronous reference frame-phase-locked loop), and by the use of a PI (proportional plus integral) controller of a recovery control loop, zero-error tracking of the microgrid PCC frequency and voltage amplitude to a target frequency and voltage amplitude is achieved. As the microgrid transforms from the island model to the grid-connection model, frequency correction is added in the second-layer control of the microgrid, phase and voltage amplitude are subjected to perturbation control, voltage differences of two sides of a grid-connection switch are performed with the Fourier transformation, the perturbation and observation method is employed to allow the two-side voltage phases and amplitudes synchronous, current shock of a close grid-connection switch to the microgrid is restrained, seamless switching is realized during model transformation, smoothness is improved during the transition process, and guidance is provided for large-scale renewable energy system connection.