Blog - GridFree

She is the “Beast” or the “Bestie”

We call her the“Bestie”. The word“Bestie” in the Czech language means the terrible beast. It can also mean a wicked woman.

However in English“Bestie” can also be used as the familiar name for the“best-girl-friend”.

In GWL the&ld

A complete solution from the GWL/Team

This is the work of the GWL/Team. As a part of, the GWL/Team members create a customized solution to help the customer according to his needs.

In this design schematics, a customer is looking for a solution of an off-grid cottage.

Components used: 4x PV solar panels 165Wp, MPP

The Community Garden Project – Pastvina

GWL/Team is helpingto be fully energy self-sufficient. As a first part of the project, GWL/Team in partnershiphas assisted in the installation ofon the roof of the wooden roofing construction. The ne

On-line monitoring for AC 230V

– a simple solution for the online monitoring for any 230V AC applications.

Check the consumption of your house-hold equipment. You can also connect this socket to the AC part of your DC/AC inverter to see the production of the AC energy

Czech Sustainable Houses - the power switch box

The photos of the testing installation of the Czech Sustainable Houses project. The GWL/team has installed the the DC/AC power switch box. The initial testing was performed at GWL’s warehouse.. You may check.

Czech Sustainable Houses – More Photos (2-3/2020)

Few more photos of the progress on the first of the Czech Sustainable Houses. The roof timbers are going up and soon the whole raw structure will be accomplished.

In the meantime, we are working on a small Sustainable Garden project. A Sustainable house also needs a sustainable gard

Four types of solar installations. Which one is the most...

Are you lost in the terminology of the solar installation types? Read our beginner's guide:

Grid-Tied Also known as “tied to grid”, or “grid-tie” system. This type of installation is aimed to make a profit by generating energy which is directly supplied to the grid. In some con

Mickey Mouse at GWL/Power Training

Some customers are rather exotic. We had a customer who came to our training in the mask of the Mickey Mouse. This is not a fun, this is a reality.

The customer was wearing the Mickey Mouse dress the whole training and was happy to take many photos.

Internal resistence

The value of the internal resistance

Question:In your promotional materials you mention several times that the internal resistance of the LTO cells is“very low”,“lower than for the LFP cells”, is“only 1 mOhm and less”. However we have tested

The GridFree inverters for the energy solutions

The GridFree inverters for the energy solutions

for energy self-generation.