Bi-directional Energy Storage Power Supply

Bi-directional Energy Storage Power Supply is the core component of solar equipment to achieve flexible energy scheduling, improve economy and reliability, and its core function is to realize the two-way conversion and intelligent management of direct current (solar panels, energy storage batteries) and alternating current (load, power grid). In solar energy equipment, its application runs through the whole chain of "power generation, storage, consumption, and interaction", and the following is detailed from three aspects: core role, typical scenarios, and technical value:
First, the central role in solar energy equipment
The bidirectional energy storage power supply solves the problems of "intermittency" and "instability" of solar power generation through "two-way energy flow intelligent control", which is manifested in the following ways:
1. Preferential consumption of solar energy to reduce energy waste
The direct current output by the solar panels (voltage fluctuates with light intensity) is first processed by the bidirectional energy storage power supply:
◦ When the power generation is greater than the load demand, the excess power is converted into DC power and stored in the energy storage battery (rectification function) to avoid "curtailment";
◦ When the power generation is less than the load demand, the direct current of the energy storage battery is converted into alternating current to supplement the load (inverter function) to ensure continuous power supply.
For example, if a household photovoltaic panel generates 4kW of electricity at noon and only uses 2kW for load, the remaining 2kW will be rectified and stored in the battery by the bidirectional energy storage power supply. In the evening, the photovoltaic power is stopped, and the electric energy stored in the battery is inverted to supply power to the home appliances, realizing "self-generation and self-consumption".
2. Power grid coordination to achieve multi-mode interaction
◦ Grid-connected mode: support "surplus power grid" - the excess solar energy is converted into alternating current (voltage and frequency synchronization) in line with the grid standard in both directions and fed into the grid to obtain subsidies or benefits; At the same time, it can take electricity from the grid and store it in batteries when the price of electricity from the grid is low, and use the batteries to supply power during peak times ("peak-to-valley arbitrage").
◦ Off-grid mode: When the power grid is cut off, quickly switch to independent power supply mode, and only power critical loads (such as refrigerators and medical equipment) are powered by solar cells, and the switching time is usually < 20ms to avoid power failure losses.
3. Stabilize voltage and frequency to protect equipment safety
Solar power generation is affected by light and temperature, and the output voltage may fluctuate (such as 12V-48V), and the bidirectional energy storage power supply converts unstable DC power into stable alternating current (such as 220V/50Hz) through voltage stabilization and frequency stabilization functions, so as to avoid damage to the load due to voltage fluctuations; At the same time, it protects the battery from overcharging and overdischarging, and prolongs the service life.

The software of bidirectional strength storage energy grant in the area of photo voltaic power is more often than not mirrored in three aspects: strength self-management, grid balance enchancment and monetary gain optimization.

1. Solve the hassle of intermittent photo voltaic power and enhance power utilization
Smooths out fluctuations in strength generation
Solar power is drastically affected with the aid of the weather, and the bidirectional strength storage strength grant can save extra electrical energy when the solar is enough (such as the top strength technology at noon) and launch the electrical energy on wet days or at night time to make sure non-stop electricity supply. For example, a domestic PV device can amplify its dead night self-consumption price to extra than 70% through storing surplus electrical energy at some point of the day1.
Extend off-grid uptime
In areas barring a grid (e.g., far flung base stations), power storage structures can shop photo voltaic power for all-weather use, decreasing reliance on diesel generators. In some cases, power storage structures have decreased gasoline expenses off-site by means of up to 60%2.
2. Enhance the interactive potential of the energy grid and recognize shrewd power dispatching
Peak shaving and valley filling decrease electrical energy bills
Charging at low valleys: charging from the grid at night time when the electrical energy rate is low (e.g. 0.3 yuan/kWh).
Peak energy supply: Energy storage can be used to provide electrical energy throughout top daylight electrical energy costs (e.g. 1.2 yuan/kWh), saving industrial and industrial customers up to 40%2.
Participate in demand response and reap the benefits
When the load on the grid is too high, the electricity storage gadget discharges in response to the dispatching command, and the consumer can get a subsidy of 0.5-2 yuan per kilowatt-hour3.
3. Improve the reliability of electricity provide and energy quality
Millisecond-level backup energy switching
In the tournament of a mains electricity outage, bidirectional power storage can be seamlessly switched to backup electricity in much less than 30ms, making sure the non-stop operation of precision tools such as facts core servers and warding off statistics loss3.
Voltage fluctuations are filtered out
Real-time compensation for voltage dips, harmonic disturbances, etc., to defend touchy hundreds (e.g. scientific equipment, industrial manufacturing lines)

Bi-directional Energy Storage Power Supply



Lightest and Safest

The lightest and most secure 3600W bi-directional electricity storage electricity supply, there is no one.

Adopting EVE lithium iron phosphate battery, power density is greater than 20% greater than peers, the product is secure and reliable.

Bare desktop weight 40KG, dimension 550 * 321 * 464.

Industry Leading Level

PV input support up to 2000W, input range 12V-160V, in the industry leading level.

After waking up the system, 5W standby power consumption, almost the lowest in the industry.

High-power super fast charging

AC output efficiency is very high, the average efficiency of more than 92%, the whole capacity conversion efficiency of more than 85%, the same level of products is almost the industry's best standard

Keep your equipment working

Usually, the battery in the work equipment cannot last for a whole day or more, which requires us to plan the work in advance and prepare a lithium portable power station with sufficient power.

Continuous energy supply

In this off-grid situation, you simply cannot find a source of electricity to charge your work equipment. If this place is far from the power supply place, the round trip will delay a lot of working time, increase costs and reduce work efficiency.

Easy to move

The overall weight of Energipak 3840 is close to 40kg. We use rollers at the bottom of the battery to move it. The hidden telescopic rod design allows you to move it as easily as a suitcase.

Source of power generation

Even if you already have your own lithium portable power station, its power will be exhausted one day under high-intensity and long-term working conditions. Therefore, how to recharge portable power supplies is also one of the headaches, because mains power is not always guaranteed.

Product Specifications