Solar and Wind Off Grid systems

PV Solar panel for solar off-grid and tied-grid systems

The batteries used to store solar and wind energy are currently mainly lead-acid batteries. Short lifespan and low cycle number of lead acid batteries make it a weak candidate for environment and cost efficiency.

Lithium-Ion batteries allow to equip solar or wind “off-grid” power stations, replacing the legacy banks of lead-acid batteries.

Benefits :

  • A lifetime (number of cycles) well above the lead-acid batteries (over 1500 cycles at 90% depth of discharge)
  • Footprint and weights 2-3 times lower than lead-acid
  • No maintenance required
  • Compatibility with installed equipment (charge controllers, AC converters, etc.) by using advanced BMS
  • Green solutions (non-toxic chemistries, recyclable batteries)
Off-Grid chalet

Off-Grid Dwelling
solar water pump with battery

Solar pump with energy buffer battery

We offer flexible and modular solutions to meet all types of applications (voltage, capacity, sizing). The implementation of these batteries is simple and fast, with direct drop-in of legacy battery banks.

APPLICATION : PowerRack® system for Solar and Wind off-grid systems
500kWh Wind Off-Grid energy storage in Germany
500kWh Wind Off-Grid energy storage in Germany
PowerRack Modules in Serial assembly
PowerRack Modules in Serial assembly
19 inches Lithium-Ion battery system - PowerRack
PowerRack is a 100% modular, 19 inches Lithium-Ion battery system. BMSMatrix® embedded system : this technology embeds PowerRack intelligence providing an incredible modularity and scalability to the system: PowerRack can manage ESS as small as 2.5kWh-48V, but can easily scale up to some large ESS of more than 1MWh-1000V.
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APPLICATION : PowerBrick® lithium batteries for Wind and Solar Off-grid Applications
led solar street light with PowerBrick Battery
Led solar street light with PowerBrick Battery
Autonomous CCTV equipped with a powerbrick battery
Autonomous CCTV equipped with a powerbrick battery
PowerBrick Lithium Iron Phosphate LiFePO4 12V-48V batteries
PowerTech Systems offers a range of 12V, 24V and 48V Lithium-Ion battery pack to meet most of our customer needs.
PowerBrick® battery offer a high level of safety through the use of Lithium Iron Phosphate cylindrical cells and a built-in BMS. PowerBrick® can be assembled in series (4S maximum) and parallel (10P maximum) to increase operating voltages and energy stored.
PowerBrick® batteries can be discharged up to 100% and have a minimum operation life of 2000 charge/discharge cycles.
More about PowerBrick®...
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ESS Modular Systems : PowerRack®
Drop-In AGM Replacement : PowerBrick®
High Starting Power : Powerstart®
Modular batteries for EVs : PowerModule®