FAQs

PEG is an East-West high-density, lightweight, highly robust substructure with rapid installation and significant CAPEX reduction. The PEG design is fundamentally different from other substructures. It includes lean rods rather than heavy steel posts. Around 75% less steel is required for PEG vs conventional substructures.
Read more about the PEG design…

Yes it is. The low ~1m height above ground, the low 8deg tilt angle of the modules and the large number of ground contact per module significantly increases the system’s robustness to high winds as was proven in few PEG projects globally installed in high wind reason.
absolutely.
LinkedIn publication about a PEG site in Cuba experiencing Hurricane…
A video showing how robust the PEG is…

The PEG EW is built in blocks of difference sizes, from ~9m x 9m (~30ft x 30ft) up to ~40m x 30m (~130ft x 100ft) with minimal gap in between the blocks.

The PEG allows GCR (Ground Cover Ratio) of ~95-98%.

The modules must have frames and be approved for corner clamping.
A list of approved modules is available here. This list includes the mounting method allowed (Landscape and/or Portrait) and the maximum test loads for which the module is allowed on the PEG.

The standard thickness of the zinc protecting coating is ~80µm on the rods and ~20µm on the plates.
A thicker coating is possible up to ~140µm thick in case of corrosive soil.
The thickness of the zinc coating is determined per project based on few factors:
1. The level of soil corrosion which is analysed following chemical soil tests which should be done to our specification document.
2. The validity and duration (number of years) of the PEG product warranty.
The chemical soil tests and the default PEG warranty can be provided upon request.

For sites without snow: Up to 4.5 degree (~8%). Higher slope up to ~6 deg (~11%) might be allowed – evaluated per project.
For sites with snow: Up to 2 degree (3.5%). Higher slope of up to ~3.5 degree (~6%) might be allowed – evaluated per project

A static calculation is provided following a PEG Purchase Order (PO). Clearly the calculations are validated during the final project design, before the PEG PO is issued.

The middle clamp includes 8 piercing jaws to ensuring the earthing of each module  to the ground, through the clamp, top plate and the rods.

The PEG foundation is determined based on the type of soil, wind speed on site, the PEG height and the module size.
The pullout load operated on the rods are calculated based on the parameters above.
Then pullout tests should be done onsite, based on our tests specifications, to determine the depth of ramming or drilling at which the pullout load is achieved. The tests require standard and lightweight equipment and is typically offered by local civil works contractors.
The pullout tests specification can be shared upon request.

Yes it can. However pre-drill might be required in case the ground is too hard. Otherwise ramming trough rocks might be possible, in case the soil is made of rocks fragments or in case the rock is not too hard, for example a soft limestone.

There are multiple ways to deal with vegetation under the PEG:
1. Fabric sheet, to prevent vegetation growth.
2. Spraying the site
3. Planting Clover grass.
4. Mowing the ground with Raymo mower.
Further information is available here.

Module cleaning can be done with manual or robotic cleaning systems.
Few of those systems are in commercials use on PEG sites globally, like the Gal-In manual system and the GEVA-BOT robotic system.
Further information is available here.

There are several ways to replace modules under the PEG. Further information is available here.

The PEG is supplied from either Germany or India.

The standard PEG warranty is for 10 years limited warranty and 25 years design warranty and is subject to the soil corrosion and atmospheric conditions (Corrosion Category) of the specific site and the number of years the warranty is required for.

The CAPEX cost of the PEG, including both its supply and installations and other costs related to the high-density value of the PEG, are significantly lower compared to a conventional system.
You are welcome to contact Jurchen Technology and ask for a quote. This can be done using an online form.

The transportation of the PEG are ~2-4 times lower compared to other systems with ~2.2MWp of PEG can be packed in a single 40‘ HC Container, assuming a project with 550W modules.