LG Electronics USA expanded its line of ENERGY STAR-certified Inverter Heat Pump Water Heaters with two new models featuring demand response and a water leakage detection sensor, ensuring a comprehensive domestic water heating solution for residential applications.

Stay worry-free comfort and enjoy peace of mind with InverterCool air-to-air heat pumps

Midea America Corp. has introduced the Premier Series, a completely refined inverter ductless system technology. While the majority of these provide 100% heating output at 5°F ambient temperatures, most offer 100% of the stated cooling capacity at -4°F, with a few attaining 100% cooling at -22°F.

Inverter technology is being incorporated into a wider range of HVAC systems, allowing the equipment to operate at lower speeds and consume less energy, which results in significant energy savings and lower carbon emissions.

Variable-speed heat pumps, which dominate the heat pump market in many countries, are getting more attention in the U.S. The NEWS asked several manufacturers about the benefits of the technology.

LG RESU16H Prime + Solis S6-EH3P10K-H-AU (AS4777-2 2020)

Part of the latest generation 3 series in the LG RESU line-up. The RESU16H Prime is the largest lithium-ion residential battery storage in the world, supplying a total energy capacity of 16 kWh. The latest RESU16H Prime provides an all-new continuous power rating of 7 kW and a peak rating of 11 kW. This increased peak power enables homeowners to backup high-surge power appliance loads like air-conditioning units and pumps.

The 16 kWh battery features industry-leading continuous power, storage capacity, and DC round-trip efficiency (>90%). Stackable to 32 kWh of energy storage capacity, the RESU16H Prime can fully cover an average daily electricity use of a home.

SPECS
Electrical Characteristics
Nominal Energy 16.45 kWh
Usable Energy1) 16.0 kWh @77°F (25°C)
Voltage Range Charge 420 ~ 450 VDC
Discharge 350 ~ 410VDC
Max. Charge/Discharge Current 20A@350V
Max. Charge/Discharge Power 7 kW
Peak Power (only discharging)2) 11 kW for 10 sec.
Peak Current (only discharging) 32.8A for 10 sec.
Battery Chemistry Lithium Ion
Communication Interface RS485/CAN
DC Protection Circuit Breaker, Fuse, DCDC converter
(Short Circuit Current : 1.616kA)
Connection Method Spring Type Connector
User interface LEDs for Normal and Fault operation
Protection Features Over Voltage / Over Current /
short circuit / Reverse Polarity
Scalability
(Total Energy, Max. Charge/Discharge Power)
Max. 2 in parallel
(32.0 kWh @77°F (25°C), 14kW)

Only 14 units left in total

Happy to quote on PV installation also.
Price includes installation in Standard metro in WA, NSW, VIC, QLD
travel or freight is an additional charge

Kenny Solar
1300882990
www.kennysolar.com.au
info@kennysolar.com.au

Dropping faster than your 5G. Down to its ATL, possibly most popular but equally most hated compact OzB microwave.

Get onto it whilst your food is hot and your wifi is not.

Born to drive machines　　　(3G3MX2-V1)

Product Information

Save energy and maximize performance with versatile inverter(3G3RX2)

Jinggu Energy, a leading inverter supplier in China, announced the publication of their website content: The Ultimate Buying Guide of Power Inverter.

A system, method, and apparatus for providing three level inverter modulation is disclosed. In one embodiment, control signals can be provided to control a three level inverter in a power converter based on at least one feedback signal.

Disclosed is a grid-connected inverter and a method for filtering AC output thereof. The grid-connected inverter includes an AC output filter which includes two or more switchable filtering modules, with the power capacity of each filtering module corresponding to a different output power of the grid-connected inverter; a monitoring module which is used to perform realtime monitoring on voltage and current outputted by the grid-connected inverter; and a control circuit which is used to calculate an output power grade of the grid-connected inverter according to the voltage and the current monitored by the monitoring module and control switching to the filtering module having a corresponding power capacity according to the power grade, the power grade being selected from a plurality of power grades which are divided according to power capacities of the filtering modules.

There is provided an even-level inverter, including: a voltage-dividing circuit dividing input DC power into an even number of voltage levels; a plurality of switching devices connected to individual nodes of the voltage-dividing circuit having the even number of voltage levels; and a bidirectional switching device connected to the individual nodes of the voltage-dividing circuit through at least one of the plurality of switching devices and including at least two transistors. According to the present invention, the bidirectional switching device is implemented without a diode to thereby reduce conduction loss caused due to an anti-parallel diode included in the related art bidirectional switching device, and a neutral point of the voltage-dividing circuit is electrically separated from the switching devices to thereby control reactive power.

A boost converter with a multiple input and with improved efficiency has two or more inputs. A DC voltage source can be connected to each input. A common output carries a DC voltage whose value is greater than or equal to that of the input voltages. The common output is in each case connected to each of the plurality of inputs via a positive lead branch and a negative lead branch. At least one inductor is arranged in the positive lead branch and/or the negative lead branch from each input, and at least one rectification element is arranged in the positive lead branch and/or the negative lead branch from each input. Furthermore, the inputs can be connected in series by means of two or more switching elements via the inductors, wherein at least two of the inductors can in each case be connected in parallel.

An inverter circuit contains a first and second DC sources for providing a DC voltage, a common step-up converter for boosting the DC voltage, an intermediate circuit capacitor connected between the outputs of the common step-up converter, and an inverter for converting the DC voltage provided by the capacitor into an AC voltage. The common step-up converter contains a series circuit having a first inductance and a first rectifier element and is connected between an output of the first DC source and one side of the intermediate circuit capacitor as well as a series circuit which includes a second inductance and a second rectifier element and is connected between an output of the second DC source and another side of the intermediate circuit capacitor. The common step-up converter further contains a common switching element which is connected between the first and second DC sources.

A power inverter includes a power semiconductor module that includes a power semiconductor device, a control circuit board that outputs a control signal used for controlling the power semiconductor device, a driver circuit board that outputs a driving signal used for driving the power semiconductor device, a conductive metal base plate arranged in a space between the driver circuit board and the control circuit board in which a fine and long opening portion is formed, wiring that connects the driver circuit board and the control circuit board through the opening portion and delivers the control signal to the driver circuit board, and an AC busbar that is arranged on a side opposite to the metal base plate through the driver circuit board and delivers an AC current output from the power semiconductor module to a drive motor. At least a portion of the AC busbar that faces the opening portion extends in a direction directly running in a longitudinal direction of the fine and long opening portion.

A solar power inverter having a sealing means includes: a main case having an opening on a front surface thereof, the opening open and closed by a main cover; an auxiliary case coupled to one side surface of the main case, and having a second opening on a front surface thereof, the second opening open and closed by an auxiliary cover; and a gasket interposed between the main case and the auxiliary case, wherein the main case and the auxiliary case are coupled to each other by coupling bolts which pass through the main case, the gasket and the auxiliary case.

An inverter generator used in combination with a motor and an ECU generating a pulse at each predetermined rotation angle of the motor is comprised of: an electric generator driven by the motor configured to generate alternating current electric power; estimating means for estimating an electrical angle of alternating voltage of the alternating current electric power from the pulse, the estimating means being electrically connected with the ECU; a converter configured to convert the alternating current electric power into direct current electric power, the converter electrically connected with the electric generator and the estimating means; and an inverter configured to convert the direct current electric power into alternating current output electric power, the inverter electrically connected with the converter.

A system that manages a supplemental energy source connected to a power grid uses a two stage control strategy to manage power transfers in and out of the power grid as well as in and out of an energy storage system, such as a battery bank. One stage uses a non-linear transfer function to control an output frequency of a DC-to-AC inverter to limit undesired effects of power transients that occur on the grid. A second stage uses control strategy for transferring energy between the energy storage system and an internal DC link based on a relationship between a voltage on a DC link connecting the first and second stages and a DC link reference voltage, the voltage on the DC link, and a voltage at the energy storage system. The control strategy includes rapid charging, over-charging protection, and grid transient stabilization.

Energy generation and consumption is rapidly transforming into a decentralized, decarbonized, and digitized model due to a number of market forces. The declining costs of solar energy systems, as well as the increasing price of energy from the grid has led to grid parity. This has caused PV proliferation to accelerate to such an extent that in the past five years alone, PV installed capacity has increased by 300%. Simultaneously, the EV market is also on the rise and is expected to reach the electrification tipping point by 2030. This is due to support from governments trying to limit the effects of climate change, thus leading to automotive manufactures transitioning their fleets from standard petrol- and diesel-powered cars to EVs. As a result of the acceleration of both of these markets, EV charging has created demand patterns causing an even steeper and faster ramp-up in the evenings than the PV duck curve. , This is causing the grid’s balancing act to be increasingly complex. In order to support this new energy dynamic, advanced management software is required to ensure grid stabilization and to unlock the value of these energy resources.

Electric vehicles and solar tend to get lumped together as partners in the climate-friendly push to phase out fossil fuels. Now they’re competing head-to-head for high-tech components that have been in short supply.

Energy generation and consumption is rapidly transforming into a decentralized, decarbonized, and digitized model due to a number of market forces. The declining costs of solar energy systems, as well as the increasing price of energy from the grid has led to grid parity. This has caused PV proliferation to accelerate to such an extent that in the past five years alone, PV installed capacity has increased by 300%. Simultaneously, the EV market is also on the rise and is expected to reach the electrification tipping point by 2030. This is due to support from governments trying to limit the effects of climate change, thus leading to automotive manufactures transitioning their fleets from standard petrol- and diesel-powered cars to EVs. As a result of the acceleration of both of these markets, EV charging has created demand patterns causing an even steeper and faster ramp-up in the evenings than the PV duck curve. , This is causing the grid’s balancing act to be increasingly complex. In order to support this new energy dynamic, advanced management software is required to ensure grid stabilization and to unlock the value of these energy resources.

/ -- In 2019, global PV inverter shipments increased by 18% on a YOY basis with total shipments reaching 126,735 MW according to the report released by Wood Mackenzie. Growatt shipped a total capacity of over 5GW for the year and ranked No.8 among the inverter suppliers. The company has been pursuing a global strategy of localization in recent years and has gained strong growth momentum across the world. "Over the years, we've established 13 offices and warehouses worldwide, and we've also built strong and experienced local teams in key markets," said Lisa Zhang, Growatt Marketing Director. "Besides our extensive service network, we've developed the X generation inverters, which feature high efficiency, safety, intelligence as well as elegant design. These advanced PV solutions have brought us additional advantages over other suppliers in the market." Growatt has been present in Europe for 10 years and its products are well received in the region for its high efficiency, superior ...

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