Flexible, Scalable Design For Efficient 3000kWh 3MWh Energy Storage System. With 1.5MW Off Grid Solar Kits For A Factory, City, or Town. EXW Price: US $0.18-0.6 / Wh.
Place Of Origin: China
Type: Commercial off-grid microgrid solution
Integrated inverter + hybrid inverter
Solar/battery/grid or generator backup
MOQ: 1 set, accept OEM & ODM
A complete 3MWh energy storage system + 1.5MW solar turnkey solution includes the following configurations:
Item | Model | Description | Quantity |
1 | Solar Panel | Mono 550w TOPCon | 2600 pieces |
2 | PV combiner | H10T or Customized | 100 pieces |
3 | Controller | They are integrated – please check the left browsing for specific parameters | 9 pieces |
4 | PCS inverter | ||
5 | Battery | Each battery pack will be equipped with a BMS system | 9 sets |
6 | BMS system | ||
7 | Container | 20ft or 40ft, built-in HVAC, fire protection equipment, and other safety systems | 1 set |
8 | Transformer | A low voltage outlet cabinet transformer (copper core) is one of the most crucial equipment for converting high voltage 400V-2500KV to low voltage 110V-220V | 1 set |
9 | Mounting Support | One set of 2 solar panels | 1300 sets |
10 | Cables and others | Copper core 4mm PV cables | 1000 meters or Customized |
Optional solar mounts, PV combiner boxes, and PV cables.
PVMARS provides a complete turnkey photovoltaic energy storage system solution. After we complete production, the system delivered to you can be used immediately after connections are made. You don’t need additional accessories to benefit from it.
The premise of providing a complete energy storage system solution requires: You only need to submit load (electrical equipment) information, pictures/drawings of the installation location, output voltage range, and other data.
PVMARS’s engineering team can provide a complete solar energy storage system (off-grid or mini-grid solution).
It is recommended that you download this load table, compare it, and fill in the corresponding information: (This form is not mandatory. If there is no electrical equipment in use, please inform PVMARS of your budget and we will configure it according to your).
PVMARS will expand on the configurations of photovoltaic panels, combiner boxes, transformers, and PCS+ energy storage cabinets to explain their parameters. This will enable you to better understand their functions.
PVMARS provides 50w-600w solar panels, which can be adjusted according to your installation location and area.
In this solution, each 550W solar panel constitutes 1.5MW PV array, and its parameter table is as follows:
Data sheet under STC Condition | |
Maximum power at STC(Pmax) | 550 Watts |
Optimum operating voltage (Vmp) | 41.95V |
Optimum operating current(Imp) | 13.12A |
Open-circuit voltage(Voc) | 49.80V |
Short-circuit current(Isc) | 13.98A |
Module efficiency(%) | |
STC: Irradiance 1000W/㎡,Module temperature 25°℃,AM=1.5 NMOT:Irradiance 800W/㎡,wind speed:1m/s,Module temperature 20℃ Tolerance of Pm:0~+5W This is laboratory data and may deviate from actual use. | |
Mechanical Parameters | |
Cell | N Type Mono-crystalline silicon solar cells |
Cell Size | 182mm*91mm |
Cell Quantity | 144Pcs(6*24) |
Dimension of module | 2279mmx1134mmx30mm |
Weight | 27.5kg |
Junction Box | Separated Junction Box with 3 diodes |
Output Cables | 4mm2 |
Operating temperature | -40℃ to 85℃ |
Specifications are subject to change without further notification | |
From the table, we can determine that the size of a 550w solar panel is 2.279M x 1.134M = 2.58m2, and the average area of each 550w solar panel is about 2.6 square meters.
1.5MW = 1500,000W / 550W = 2727. Combined with the energy storage system calculation, we recommend 2600 x 550W solar panels. Thus, the total area of 2600 x 550W solar panels is approximately: 2600 x 2.6 square meters = 6760 square meters.
1.5MW solar panels require 6,760 square meters of installation space.
A 1.5MW solar panel is expected to generate 171,600-kilowatt hours (kWh) – 257,400 kilowatt hours (kWh) of alternating current (AC) per month, assuming the PV array faces south and receives an average of at least 4-6 hours of sunshine per day.
If you want more power, when installing solar panels with an unobstructed view of the south-facing sun to achieve maximum solar power. Location, equipment, and installation determine the actual power generated.
Please check below video:
It is estimated that 10 combiner boxes will be needed. Combiner boxes facilitate solar panels’ connection to energy storage cabinets and have lightning protection functions.
Model | ARH-H10T |
Input data | |
PV array input numbers | 10 |
Max single PV array current | 16A |
Single PV array fuse | 16A |
Single PV array wire size | PG7、4mm² |
Output data | |
Output numbers | 1 |
Max output current | 160A |
Output wire size | PG16 25mm² |
Max output voltage | 12-1000VDC |
DC output circuit breaker | yes |
Others data | |
protection | IP65 |
Temperature range | -30℃ ～ +60℃ |
Reference weight （N.W/G.W.） | 11/12 |
Machine size（D X W X H） | 450*420*150mm |
Packaging size（D X W X H） | 490*480*200mm |
Cooling way | Natural cooling |
SPD protection | yes |
Ground wire size | ≥6mm² |
PVMARS offers lead-acid sealed gel batteries, 2V opzv batteries, and lithium batteries.
Due to their high capacity and small size, lithium batteries make excellent energy storage containers and designs.
The 3MWh energy storage system consists of 9 energy storage units. A single energy storage unit is made up of 1 lithium battery cluster.
Each battery cluster is comprised of 8 battery boxes and 1 high-voltage box. A single battery box is composed of 1 in parallel and 52 battery cells in series.
It is composed of 52 battery cells, which are 1 in 416 strings. The high-voltage box contains the battery cluster management unit and protection and control electrical components, which are used to manage and protect the operating status of the entire battery cluster.
The energy storage unit is equipped with a battery system management unit. This is used for data processing, monitoring, and control within the entire energy storage unit, and communicates with the energy management system (EMS).
Each battery cluster is equipped with a battery cluster management unit. This is used to monitor and control each battery group management unit in the battery cluster.
At the same time, it can control the cluster’s electrical components to protect the energy storage system.
The battery boxes all have battery pack management units. This is used to collect and upload the battery box voltage and temperature information.
3.35MWh container energy storage system, each PCS corresponds to 1 battery cluster (250kW/372.7kWh):
3.35MWh Battery Energy Storage + 2250KW PCS System | |||
Technical Parameters | |||
No | Item | Parameters | |
Performance | Type | LiFePO4 (LFP) battery | |
System nominal voltage | 1331.2VDC | ||
System nominal capacity | 280Ah (0.2C/25°C) (Min:275Ah) | ||
Module standard voltage | 51.2V | ||
Module rated capacity | 280AH (0.2C/25°C) (Min:278Ah) | ||
Operating The module voltage | 40V~58.4V | ||
Module charging voltage | 58.4V±1.0V | ||
Module discharge cut-off voltage | 40v±1.0V | ||
Charging current (Max.) | 200A | ||
Discharge current (Max.) | 200A | ||
Module Dimensions | Length | 1200mm | |
Width | 1400mm | ||
Height | 2200mm | ||
Main Unit Dimension | Length | 700mm | |
Width | 442mm | ||
Height | 230mm | ||
System combination mode | 416S1P | ||
Shell | Metal/White | ||
PCS | Rated power | 250kW per one (Total 9 units) | |
Alternating voltage | 230Vac/400Vac | ||
MPPT range | 400~900Vdc | ||
AC frequency | 50hz/60hz | ||
Function | Alarm & Potection | Over Voltage, Under Voltage, Over Current, Over temperature, Short Circuit etc. | |
Terminal stud | Quick-connector | ||
Working Condition | Cooling mode | liquid cooling | |
Altitude | ≤4000m | ||
weight | 2560KG | ||
Humidity | 15%~75% | ||
Operating temperature | Charge | -15°C~50°C | |
Dischage | -10°C~60°C | ||
Recommended operating temperature | Charge | 15°C~40°C | |
Dischage | 15°C~40°C | ||
Storage | -15°C~45°C | ||
Application Field : Telecommunication, Solar energy storage, City town energy storage etc. | |||
The 20-foot energy storage container uses a built-in industrial all-in-one liquid-cooled air conditioner with a cooling capacity of 40kW, which is installed on one side of the container to provide temperature balance for the entire system.
Liquid-cooling plates are installed at the bottom of each battery box.
The liquid-cooling pipe circulates through the bottom plate, introducing the heat generated by the battery into the bottom plate, and circulating the temperature out through the coolant.
For battery boxes and battery racks, the air conditioner is installed against the side wall of the container. The air conditioner is placed on the left side of the energy storage unit.
The energy storage unit contains three battery racks. The battery rack width is 1440mm. Battery racks are in 2 columns.
Configure one air outlet, as shown in the figure below. The amount of cold air blown downward by each air duct section is equal. Because the container is long, a variable cross-section design is required when arranging the air duct.
The main air duct is divided into 3 sections, which distribute the air volume equally. The air conditioner’s refrigeration cold air is sent from the main air duct to the space behind the battery rack.
It then enters the interior of the battery box through the exhaust fan installed in each battery box to remove the battery. The heat is carried to the middle aisle, and the hot air flows back to the return air outlet of the air conditioner’s internal circulation.
This forms an internal air circulation inside the container. The central and external circulation of the air conditioner continuously exchanges heat and cold.
It transfers the heat generated by the battery in the container to the atmospheric environment to regulate the box temperature.
The fire protection system includes a detection controller, fire extinguishing device, fire host, user switch, alarm device, and pressure relief device.
It is activated when a fire is detected to reduce losses. The detection controller is arranged above the battery rack, the fire extinguishing device, fire host, and user switch are installed in the corner of the container, and the alarm device and pressure relief device are installed in the container body.
The detection controller has a full-cycle fire monitoring function and integrates smoke, temperature, gas, and other sensors internally.
It can detect smoke and gas in the early stages of thermal runaway. It can also comprehensively determine whether the battery system has thermal runaway based on temperature and other characteristic parameters; effective identification.
The fire signal realizes early fire detection and timely warning and is divided into multi-level alarms according to the fire process.
It has a fire extinguisher starting function and can start the fire extinguisher in response to instructions issued by the fire host. It has functions such as hardware diagnosis, sensor fault diagnosis, fault protection, fire extinguisher connection status diagnosis, abnormal data backup, and offline download. This is to ensure the safe operation of the equipment.
The fire extinguishing device adopts a cabinet-type heptafluoropropane fire-fighting device, which has the advantages of cleanliness, low toxicity, effective insulation, no damage to the ozone layer, and high fire suppression efficiency.
To extinguish fire, it uses both physical cooling and chemical decomposition to generate active free radicals.
When the fire protection system is in automatic mode an early warning signal is detected and a fire is confirmed, the fire host can activate the in-station/outside alarm device and perform corresponding equipment linkage to delay the start of the fire control device.
And turn on the venting indication; when the fire protection system detects that the manual start switch has been pressed for some time, it will consider the initial start signal to be valid, activate the station/outside alarm device, and perform corresponding equipment linkage, delay the start of the fire prevention device, and open the venting indication.
After the fire extinguishing device is activated, the fire extinguishing device can be stopped through the emergency stop button on the user switch or the emergency stop button on the alarm display.
Two gun-type cameras are arranged in the container, installed on both sides in a shooting manner, to monitor the internal conditions of the container. They upload video information to the monitoring backend in real-time.
1- Monitor content
Use camera equipment to record video signals in the container.
2- Implementation method
Directly connect the video signal to the video interface of the monitoring station to realize real-time video monitoring in the container and record video storage.
3- Implement the functions
Real-time/historical video browsing can be performed locally, and real-time/historical video browsing can be performed remotely through the network to view the situation inside the container.
Video surveillance systems can be linked with fire protection and lighting systems. For example, when a fire alarm occurs, the camera will automatically record the relevant situation.
The container is equipped with safety equipment such as smoke sensors, temperature control sensors, and emergency lights. Smoke sensors, temperature control sensors, and system control switches form an electrical chain.
Once a fault is detected, the user can be notified through audible and visual alarms and remote communications. People can immediately remove the running battery system.
The container has an alarm system. Installing alarm lights at special locations can provide relatively obvious information to the outside world, serving as an early warning.
The container is equipped with essential safety equipment such as smoke sensors, temperature sensors, humidity sensors, water immersion sensors, emergency lights, door sensors, fire extinguishers, and lightning arresters.
Smoke sensors, temperature sensors, and system control switches are interlocked.
Once detected, when the environmental parameters exceed the combined force range, the door sensor switch alarms, the fire extinguisher is activated, the lightning strike alarm light is activated, the running battery supporting equipment is immediately cut off, and an audible and visual alarm is issued.
At the same time, battery management system data is uploaded to the remote monitoring platform for remote alarm monitoring.
The access control system is an intelligent management system for managing personnel entering and exiting the container.
When a thief opens the container, a threat alarm signal is generated, and an alarm is sent to the background through remote communication. This alarm function can also be manually blocked by the user.
Access control controllers, door magnetic detectors, card readers, electromagnetic locks, and other equipment are used. Here’s what each part does:
Access control controller: The access control controller is the core part of the access control system, equivalent to the computer CPU. It is responsible for processing, storage, control, etc. Of the entire system’s input and output information.
Card Reader: A device that reads the data (biometric information) on a card.
Electromagnetic locks: the execution component of an access control system. Users should choose different locks for anode locks based on door materials, exit requirements, and other needs.
Door sensor detector: detects the door safety status at any time.
Access control system entry and exit identification methods can be divided into three categories:
Password identification: Identify access permissions by verifying password correctness.
Card recognition: Identify access permissions by reading the card or reading the card and adding a password.
Biometrics: Identify entry and exit by checking personnel’s biometric characteristics. There are fingerprint, iris, and facial recognition types.
The access control system of a box-type energy storage system is usually equipped with two forms of password and card identification.
The container roof configuration is connected to a reliable high-quality lightning protection system. This is connected to the container through grounded flat steel or grounded round steel.
Provide users with no less than 2 conductive copper bars, and the effective cross-sectional area of the conductors in the electrical system is not less than 250mm².
An anti-surge protection module is installed on the line. A surge protector, also called a lightning protector, is an electronic device that protects various electronic equipment, instruments, and communication lines.
In the event of an electrical surge or voltage spike, a surge protector can conduct and shunt the current very quickly, preventing other equipment in the circuit from being damaged.
PVMARS containers have ground copper bars. The ground copper bar can be reliably connected to the non-functional conductive conductors of the entire container (the metal shell of the container that is not charged under normal circumstances, etc.).
At the same time, the container provides users with 2 earthing points in the form of copper bars that meet the strictest power standards.
The grounding points provided to users must form a reliable equipotential connection with the non-functional conductors of the entire container. Grounding points are located in the container. Diagonal position.
Non-functional conductive conductor ground point. The partial view of the grounding copper bar is shown in the figure below:
There are two forms of grounding in the cabinet: first, all exposed conductive parts of the battery cabinet and electrical cabinet are connected to the reserved conductive bus or base copper bar.
At the bottom of the cabinet through yellow and green two-color wires; second, the circuit grounding inside the electrical cabinet.
The components are connected to the reserved soiling bus or base copper bar through yellow and green two-color wires, and the connection resistance of each connection point is less than 4 ohms.
The container is equipped with a centralized wall-mounted power distribution box. The input side of the power distribution box is drawn from the mains.
It is equipped with a three-phase five-wire TN-S power supply system to provide the container’s internal dynamic environment monitoring system, fire protection system, and air conditioning system.
In addition to BMS systems and other systems.
Power distribution boxes are equipped with lightning protection modules, leakage protection, overcurrent, overvoltage, undervoltage, and other functions.
The power distribution box has a complete and reliable lightning protection system.
The lightning arrester has differential and common mode protection capabilities.
Lightning arrester is of high quality from an internationally renowned brand. It has a nominal discharge current of 30kA and a maximum discharge current of 50kA.
The main outlet of the power distribution box is equipped with industrial-grade leakage protection switches from ABB, Siemens, and Schneider, and each output branch is equipped with industrial-grade circuit breakers from ABB, Siemens.
And Schneider for overload, short-circuit, and selective protection; for convenience For user identification, the terminal blocks of different power supply circuits in the power distribution box use distinct identification colors (that is, colored terminal blocks are used to identify different power supply circuits).
The wires and cables in the TN-S power supply system are all made of cross-linked polyethylene with different color identification.
Insulated flame-retardant cables have independent insulation and sheath layers.
Their long-term operating temperature is 90°C. The rated insulation voltage value of wires and cables is one level higher than the actual voltage value.
The cross-sectional area of the neutral wire and ground wire of the cable is not greater than the cross-sectional area of the phase wire, and the minimum cross-sectional area of the cable phase wire is not less than 4mm², of which the cross-sectional area of the lighting and power socket cables is not less than 2.5mm²; technology of power distribution box.
Performance, identification, safety, wiring methods, etc. All meet the requirements of the national standard’s most stringent provisions.
Each set of power sockets contains at least one 10A two-phase socket and one 10A three-phase socket.
The three-phase socket ground wire is not connected. Before this, no power supply is allowed (that is, the ground wire is not connected, and the L and N wire plugs cannot be inserted into the socket).
Each set of switch sockets has an independent circuit breaker at the front end (inside the power distribution box) for short-circuit, overload, and selective protection.
Power sockets are selected from industrial-grade products from ABB, Siemens, and Schneider.
The power distribution box reserves at least one 16A three-phase four-wire circuit breaker and its terminals, and two 16A single-phase circuit breakers and their terminals as backup power sources in the container.
Design of the power distribution box fully considers the three-phase balance of electrical loads to ensure the balance of power supply and consumption.
The container wiring adopts a combination of open and hidden wires and is equipped with reasonable wire troughs.
PVMARS’s containers use high-quality rock wool sandwich panels for thermal insulation and flame retardant layers inside.
The thickness of the thermal insulation and flame retardant layer reaches 50mm, and the maximum insulation is 10KV. It can adapt to the operating temperature of -30℃~+80℃, and cope with various conditions at the use site all day long.
Thermal insulation layers are mainly made of hydrophobic rock wool board produced by the pendulum method. It is connected and fixed to the base wall by bonding and nailing technology. It is compounded by plastering glue and reinforced glass fiber mesh.
A class A non-combustible building energy-saving insulation system composed of a plaster layer and a decorative mortar facing layer or coating.
If your building does not have a high-voltage transformer, you will need to design your transformer based on the structure and circuit distribution to transmit solar and battery energy to your building.
High voltage incoming line metering cabinet | |
High voltage outlet cabinet | Rated current: 630 (A) |
UPS | Load voltage: 1KVA Time: 15 min |
Dry-type transformer (copper core) | Product standards: GB/T10228-2008 GB109411-2007 JB/T10088-2004 GB4208-1993 Rated high voltage: 10(11,10.5,6.6,6.3,6)KV Rated low voltage: 0.4kV Connection Group: Dynll or Yyn0 High voltage tap range: ±5% or ±2×2.5% Insulation level LI75AC35/LIOAC5 Frequency: 50Hz No-load loss (KW): 3.24 No-load current (%): 0.7 Short circuit impedance (%): 6 Weight (KG): 4220 |
Low voltage entry cabinet | Cold rolled steel plate *please contact the PVMARS sales team for specific parameters |
Low voltage capacitor cabinet | |
Low voltage outlet cabinet | |
Cabinet transformer housing | 6600*2600*2650 |
The above are the product parameters and contents of a complete turnkey solution of 3MWh energy storage system + 1.5MW solar energy.
Full set for Slope, Flat roof or Ground land optional
Including complete fittings
Wind load: 55m/s, snow load:1.5kn/m2
Structure: Anodized aluminum + stainless steel
Customized as per customer’s requirement
Real-time monitoring 1 set UPS Built-in web server for data logging and reporting for battery cell voltage, internal temperature (Negative pole), Impedance (Omic Value), SOC, and SOH Auto-balancing Batteries.
– Support SNMP, Modbus TCP protocol – Support RESTful API, JSON, XML format – Support SMS/Email alarm – Support 4G data upload to a 3rd party
Junction boxes, cabling, lighting, sensors, breakers
1) Copper row for connection to battery
2) 4mm2 PV cable, 25mm2 cable, 32mm2 cable etc.
3) full set of install tools, terminals and MC4 and 2P/4P switch box
Including A1 fireproof rock wool, 50MM thick heat insulation, heat preservation material
5ft, 10ft, 20ft and 40ft types are available
For the container appearance, our factory accepts OEM customization, and everything can be customized according to user needs.
3000 kwh = 3000 kilowatts/hours = 3000,000 watts/hours = 3MWh = 3Mega-watt/hours
This page is mainly about a 3MWh energy storage system combined with 1.5MW solar panel solutions for industrial and commercial (C&I) use.
PVMARS uses a 20-ft standard container high cabinet, equipped with a 3.35MWh capacity lithium iron phosphate battery. It also has a BMS system, PCS, fire protection system, air conditioning (HVAC) system, container and container auxiliary systems, etc.
The 3MWh energy storage system is very suitable for buildings, factories, towns, supermarkets, large homesteads, hotels, resorts, etc.
You can also power all daily or special electrical equipment: freezers, central air conditioners, testing instruments, medical machinery, lights, computers, and any equipment that requires electricity.
This system can help you achieve energy independence, getting off the diesel or utility grid and providing a free, green source of electricity for your life.
PVMARS’s 3MWh energy storage system will be assembled and tested in the production factory.
You only need to install solar panels and connect them to the electronic parts of the energy storage container to achieve off-grid living.
1) Multifunctional PCS (also known as hybrid inverters): can connect different power supplies – solar, wind turbines, diesel generators, and utility grids. Output port: Any type of power equipment.
2) Multiple working modes are available: battery priority, public utility grid power supply priority, solar power supply priority, etc.
3) Flexible expansion design: Each 3.35MWh energy storage system container can be connected in parallel to increase capacity.
4) Touch screen LCD: parameters can be adjusted according to actual conditions.
5) Quick conversion: If battery power is exhausted, the system switches to any power supply in 0.0001 seconds.
6) Remote monitoring: The PVMARS online platform can remotely monitor batteries, solar panels, and output and input parameters.
PVMARS’s 3MWh energy storage system (ESS) + 1.5MW solar energy is an off-grid microgrid solution.
Solar panels themselves cannot store a lot of electricity, so the system uses photovoltaic panels to generate electricity during the day.
It delivers power to your electrical equipment through the PCS and enables the ESS to store excess solar power.
At night, the ESS will release electricity and make the entire city shine.
Leading photovoltaic energy storage technology
Intelligent remote monitoring of 24-hour power supply
We only care about how YOU feel
To your satisfaction
100% EL TESTING, 100% IV TESTING, 100% DIGITAL WORKSHOP
In strict accordance with the German 5S technical standard, our production workshop has marked the production time, model, quantity, and other information for each raw material. Successfully ensure the high quality and efficiency of finished products.
PVMARS solar products have passed TUV, IEC, ISO, CE, and RoHS quality certifications.
Before leaving the factory, our testers will perform no less than 120 extreme impact tests, and all kinds of inspections in order to get your approval.
With PVMARS solar IoT, through your phone or computer view real-time performance data of your solar system, such as solar panel power generation, battery capacity, etc., and receive timely maintenance and safety alerts to extend the life of your solar system.
At the same time, your dedicated engineers will help you adjust the data through IOT. Double protection!
Mr. Li, the founder of PVMARS Solar, has been to more than 32 countries for field surveys and solar energy storage system installation. He has trained 5 core solar system and wind turbine system installation experts, as well as a number of overseas installers.
If you need our overseas installation service, the engineer will arrive at the installation site within 10 days after the goods arrive at the port.
In addition, for users who purchase our photovoltaic energy products, wind turbine products, solar all in one street led light products, and solar air conditioning products, we will provide the paper version of installation instructions and electrical drawings with the shipment of goods, as well as the electronic version online.
For the needs of different users, to ensure the correct installation of the product, your dedicated engineers have been waiting online, at any time to video remote communication with you, patiently guide you step by step to complete the installation, and debug the operation of the machine etc. Ensure that you are protected from all hidden dangers.
By partnering with experienced PVMARS Solar, you can be confident that your installation project will be successful. This will meet your renewable energy needs for 25 years and more.
500KW - 2MW
Direct manufacturer pricing, no middleman markups.
We are able to offer durable equipment at competitive price.
Our broadcast station is located at the top of the mountain, and we have used diesel generators before. We worry about the diesel transportation of the generators, maintenance, and voltage instability every day.
The current power source is the 30kw hybrid solar wind energy system. In our limited budget and installation area, PVMARS recommends using a solar wind system. This can reduce the battery footprint, but also provide a 24-hour uninterrupted and stable power supply.
It’s awesome how much I save on my partner’s bill with 10kw solar and battery package, but for me, it’s the peace of mind that I can use our electrical appliances knowing that we have clean energy. I’ve already recommended them to family members because they’ve been friendly, upfront, and responsive.
500kw solar energy storage system has operated in our remote countryside for two years. This week, Dunsborough experienced another blackout. Now we are happy to tell you that our town is not affected. All houses keep the lights on, use refrigerators, surf the Internet and listen to music to relax. This is thanks to PVMARS solar company, which customized the solar battery system according to our town’s electricity demand. This has greatly improved our local residents’ happiness index.
There was no problem with the installation, the instructions and online remote video install guidance were great, the system is working great and I’m producing 90% of my power. I just got my first bill back, last year $1290, this year $119, it’ll pay for itself in two years at this rate. You just have to adjust your times for power usage and you’ll save a lot.
The 5kw solar storage system was installed in 2018. We were initially attracted to the idea of using lithium batteries at night while solar power supply our house during the day. In addition, it can also provide seamless grid failure protection. At that time we did not know that the main city power had been cut off, until we saw outside, originally brightly lit streets and houses, because there is no electricity change to dark, to realize that the city grid has been cut off. And our house because of solar energy, to achieve power independence, electricity freedom.
We have seen an immediate reduction in our energy bills and a change in our power consumption patterns since we installed the PVMARS off-grid solar power system. And PVMARS IOT is so smart to remind me why my battery is running so fast. We can also contribute power back to the grid over the summer, which is a big plus.
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