The invention relates to a unit-by-unit month-by-month electric power and energy balance calculation method. The method includes the steps: calculating system demanded capacity, system demanded energy and a generation load curve, calculating working positions all kinds of power sources sequentially according to priority that the power sources take part in balance, wherein priority levels are a pumped storage unit, a nuclear power unit, a wind generation unit, a hydraulic generation unit, a gas electrical generation unit and a thermal power generation unit from high to low in sequence; calculating the working position and generated energy of the pumped storage unit; calculating the working position and generated energy of the nuclear power unit; calculating the working position and generated energy of the wind generation unit; calculating the working position and generated energy of the hydraulic generation unit; calculating the working position and generated energy of the gas electrical generation unit; performing month-by-month thermal power generation unit maintenance capacity according to the generation load curve and system demanded spinning reserve; calculating the working position and generated energy of the thermal power generation unit according to the generation load curve and the month-by-month thermal power generation unit maintenance capacity. By the method, electric power and energy balance of an electric power system can be calculated quickly, calculated results are accurate, and the method can be widely applied to the field of electric power systems.

Unit-by-unit month-by-month electric power and energy balance calculation method

PROBLEM TO BE SOLVED: To accurately predict an amount of consumption power.SOLUTION: An individual consumption power measurement unit 11 measures power individually consumed by a plurality of electrical apparatuses. A consumed power amount acquisition unit 12 acquires an amount of power consumed by the plurality of electrical apparatuses from a start time to the current time. A representative value information acquisition unit 14 acquires representative value information showing a representative value of power individually consumed by the plurality of electrical apparatuses for respective driving states. A consumption schedule power amount acquisition unit 15 acquires an amount of power which is scheduled to be consumed by the plurality of electrical apparatuses from the current time to an end time on the basis of the representative value information and information showing a schedule. A consumption power amount prediction value acquisition unit 16 acquires a prediction value by counting up the amount of power acquired by the consumed power amount acquisition unit 12 and the amount of power acquired by the consumption schedule power amount acquisition unit 15.

Consumption power amount prediction system, consumption power amount prediction device, consumption power amount prediction method, and program

PROBLEM TO BE SOLVED: To provide a user with more useful information on energy saving.SOLUTION: A controller 2 detects the start or stop of electric equipment 3. When detecting the start of the electric equipment 3, the controller 2 predicts and displays power consumption when the electric equipment 3 is operated for a subsequent predetermined period of time (e.g. for an hour). Additionally, when detecting the stop of the electric equipment 3, the controller 2 acquires and displays an actual value of an electricity charge required because the electric equipment 3 is operated during a period from the last start to this stop.

Controller, information display method, program, and equipment management system

The invention discloses an algorithm and a device for evaluating building solar energy. The algorithm comprises the following steps: Step A (A rasterization processing module), performing rasterization processing on building distribution drawings; Step B (a solar radiation time calculation module), selecting a building in the building distribution drawings, selecting a grid of the building and obtaining a maximum shielding angle of the grid in each horizontal direction through taking the grid as the center; inquiring a solar radiation value table to obtain solar radiation time received by each angle of the grid; completing the traversal of all grids of the building; obtaining the overall solar radiation time of the building through summing the solar radiation time of all the grids of the building. According to the high-efficiency algorithm and the device disclosed by the invention, the solar energy resource potential received by the building is calculated, and the solar power generation capacity of solar panels deployed on the building can be calculated; high-quality estimation can be performed, consulting works can be fast enough to support, and the suitability for popularization and application is realized.

Algorithm and device for evaluating building solar energy

PROBLEM TO BE SOLVED: To provide an energy management device and method capable of guiding energy reduction by rationally estimating contract power concluded between an electricity provider and an electricity user, and providing energy use state information of the electricity user to a retail store.SOLUTION: An energy management program of an energy management device which manages energy of a store includes: a reception module 301 for receiving power usage data transmitted from a watt-hour meter of the store; and a contract power calculation module 303 for calculating the maximum power usage during reference time by using the power usage data excluding cooling and heating power usage, and for calculating power usage during power amount unit time on the basis of the maximum power usage during the reference time, and for adding rated power consumption of a cooling and heating machine to the power usage during the power amount unit time to calculate estimated contract power.SELECTED DRAWING: Figure 5

Energy management device and method

PROBLEM TO BE SOLVED: To provide an energy consumption estimating device for house which accurately estimates an energy consumption in a house.SOLUTION: The energy consumption estimating device for house includes: an input part for receiving conditions regarding a house and residents; a reference data DB for holding reference data including at least either a reference value of use schedule or a reference value of consumption energy for each of appliances installed in the house; a correction data DB for holding correction data for correcting at least one of the reference value of use schedule and the reference value of consumption energy in response to at least either the house condition or the resident condition; a consumption amount estimation part for deriving an estimated value of an energy consumption amount in the house by deriving an estimated value of an energy consumption amount of each appliance through correcting the reference data with the correction data corresponding to at least either the house condition or the resident condition; and an output part for outputting the estimated value.

Energy consumption estimating device for house

PROBLEM TO BE SOLVED: To provide a device capable of accurately predicting power energy balance.SOLUTION: A power energy balance prediction device includes: a period power generation amount calculation unit for predicting a total power generation amount of a photovoltaic power generation device; a database unit for holding data on the number of target days included in each of a plurality of types and data on time fluctuation in solar insolation for each of the plurality of types; a unit time power generation amount calculation unit for predicting a power generation amount per unit time of the photovoltaic power generation device for each type; a unit time power consumption amount calculation unit for predicting a power consumption amount per unit time of an apparatus; a one day balance calculation unit for calculating energy balance per day with respect to each type on the basis of the power generation amount per unit time and power consumption amount per unit time for each type; and a period balance calculation unit for calculating energy balance in a target period on the basis of the data on the number of target days included in each of the plurality of types.

Power energy balance prediction device

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Energy consumption estimating device for house

Power energy balance prediction device