Panasonic Solar Storage Solutions To Help Reduce Energy Consumption for Commercial or Residential Use

Solar Storage Solutions

In today’s environmentally conscious world, Solar Storage is an increasingly popular system that captures energy and stores it to perform operations in the future. These Systems involve converting many forms of energy, such as electrical potential energy or kinetic energy, into more economically storable formats for short-term and long-term use.
Panasonic product solutions include Relays, Passive Components, such as Capacitors, Metal Oxide Varistors, and more. 

Solar Inverter Systems are also used to convert the direct current (DC) of a photovoltaic (PV) solar panel into an alternating current (AC) which then are fed into commercial or residential electrical grids. Solar Inverters have a particular function known as Maximum Power Point Tracking (MPPT) to retrieve the maximum possible power from the PV array. In addition, Panasonic provides Power Inductors, Capacitors, Connectors, ESD Suppressors, and Resistors to maximize the performance of the Solar Inverter System.

Block Diagrams


Energy Storage Block Diagram

Energy Storage

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Solar Inverter Block Diagram

Solar Inverter

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Optimum Relay Configuration for Solar Inverters


AC Side Only


HE Series Relays PV Type provide the necessary high switching capacity and low power consumption required by energy management applications. They also feature the minimum contact gap and 2.5kW surge breakdown required by photovoltaic standard requirements.

HE-S Series compact Power Relays feature contacts with long electrical life and a high-capacity resistive switching load rating of 35A at 277VAC for 50,000 cycles. These Relays are RoHS/Reach compliant as well as compliant with VDE126 and EN61810-1 Standards.

LF-G Series Relays provide excellent creepage, clearance and breakdown voltage. Offered with a 1.8mm contact gap, these Relays can handle switching capacities up to 33A 250VAC.


The HE-S Series is a compact Power Relay with low operating power and high-capacity switching. This Relay features contacts with long electrical life and a high-capacity resistive switching load rating of 35A at 277VAC for 50,000 cycles.

DC Side Only

HE-V (2a, 20A 1,000V DC*)

The high-voltage, high-capacity HE-V Series Relays are capable of simultaneously cutting off the positive (+) and negative (-) terminal by serially connecting the 1 Form A contact up to 1,000V DC cutoff. They feature a compact size and contribute to energy savings due to reduced coil holding voltage. 

*1,000V DC is the maximum allowable voltage when each 1 Form A contact is connected in series. The rating is 800V DC. 

AQZ PhotosMOS (1a 10A 60V DC)

AQZ PhotoMOS Relays have high-capacity up to 6A in a slim 4-pin package. Capable of frequent switching and improving system reliability, AQZ PhotoMOS Relays have AC/DC dual use with low on-resistance and high sensitivity. As well, they contain low-level off state leakage current of max. 10 μA.


EP (1a 10A~300A 1,000V DC*)

EP Series high-voltage, compact DC Contactors offer a high capacity of a maximum of 1,000 Volt DC cutoff. With capsule contact construction, these DC Contactors are compact and generate little operating sound, even when large currents are cut off.

*1,000V DC is the maximum allowable voltage. The rating is 400V DC. 

Solar Inverter Block Diagram - Film Capacitor Solutions

Solar Inverter Block Diagram Film Capacitors Solution