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Photovoltaic and wind turbine inverters

We are a Polish manufacturer of on-grid and off-grid inverters for photovoltaic installations, wind turbines and water generators. These are Polish products we started working on under the grant III-070 P - 081/2010 "A family of single-phase (2.0, 3.0 and 5.5 kW) high-efficiency and transformerless DC / AC converter systems for solar farms” and then we continued to develop the product in-house.

With each device you get access to the inverters.pl portal, which enables monitoring of data from the installation.

Before placing an order, it is necessary to read the technical documentation the documentation placed at the bottom of the page. The TWERD ENERGO-PLUS company produces inverters with specific parameters, therefore the buyer is obliged to familiarize himself with them before purchasing the inverter. Without access to data on which wind turbine the inquiry concerns, we are unable to determine what kind of electricity production will take place, or whether it will be produced at all. TWERD ENERGO-PLUS does not guarantee satisfactory results for wind turbines not tested with our inverter.

Our offer:

1. Solar inverters

single-phase on-grid type PS100-PV, powers: 3.0 kW
three-phase on-grid type PS300-PV, powers: 3.0 kW, 5.0 kW, 8.0 kW, 10.0 kW

2. Wind turbine and hydro turbine generator inverters

single-phase on-grid type PS100-WT, powers: 3.0 kW
three-phase on-grid type PS300-WT, powers: 3.0, 5.0, 8.0, 10.0 kW

3. Hybrid inverters designed to work with with solar panels and a wind turbine (or hydro generator) in the same time.

single-phase on-grid type PS100-H, powers: 3.0 kW
three-phase on-grid type PS300-H, powers: 5.0 kW, 8.0 kW, 10.0 kW

We also offer inverters with a built-in battery charger (marked +BC: PS100-PV+BC and PS300-PV+BC).

We only produce devices included in the price list. Other products appearing on the website or in the documentation that are not included in the price list are not currently sold by us.Individual designs other than the standard products we offer are possible after testing the turbine together with our inverter in a specialized research unit at the customer's expense.

Despite every effort, the inverter manufacturer does not guarantee the effectiveness of the protection devices protecting the turbine against reaching unintended rotational speed, i.e., among others: correct operation of the relays switching on the braking resistors and controlling the operation of the tail.
For this reason, it is necessary to use an additional system, independent of the inverter, to protect the turbine against achieving unintended rotational speed or other factors that may cause damage to the turbine itself and other resulting consequences.
The manufacturer's liability towards the buyer is limited to the value of the product determined according to the manufacturer's suggested retail price on the date of purchase and does not cover damages resulting from its damage or faulty operation.

Feel free to contact us to get to know our offer in detail!