New Solar Farm

Hard to say. The noise level at your house depends on several things known and more that are probably unknown at this point with one of them (the wind) being continuously variable.

Without knowing a lot more about the equipment, any measures such as containment around it to specifically reduce any (unknown at this point) noise generated by the equipment, and more particulars about the equipment's location relative to your home, and more about the things that may be between your home and the noise generating equipment, it's not possible to speculate about noise that makes it from any source to your home.

Because the noise level at any distance and vector from a noise source is very difficult to predict a priori, a common method of handling the noise generation problem is to add any noise abatement equipment such as walls or appropriate noise abatement measures as one of the final project milestones after most everything else has been installed and run. Noise levels are then measured at various locations both on and off the project site.
Adjustments and measures are much more effective if/when done in that manner.

I'd get ahold of the folks building the plant and enquire as to what types of equipment are being installed and any anticipated sound attenuation measures or equipment they plan on installing and/or what measures they plan to take/use if the noise is deemed objectionable by the neighbors.

The DC to AC inverters internally generate terrible radio frequency
noise, which could interfere with other electronic devices. But good
engineering practice can contain the noise within the inverter. My
inverters do not radiate, yours are an unknown at this point.

Radio noise is more likely to be an issue with micro inverter systems,
where with so many units, it is harder to provide noise filters for every
one. And the locations make the entire panel array into an antenna.
Bruce Roe

I don't think anyone on this forum has experience with a large-scale utility solar farms in Europe. (guessing Europe because you mentioned distance in meters)

That said you likely have noise codes they would have to follow limiting the decibels that can be heard on the next property. Educated guess on my part from walking past large power transformers outside shopping centers you won't hear anything.

The only time our inverter and batteries seem to howl is when the system is running at peak and the cooling fans kick on. Otherwise, a nominal hum on occasion but not much more. .

Are you saying 100 M from house or edge of property, just to be clear? I work at a 180 MW solar farm with 3.6 MW SunGrow inverters and a 205 MVA transformer. To be honest if your in a valley and they are blocked by a hill, you should be more than fine. A bigger concern I would have is the air temperature. At my solar farm on a nice sunny day the temperatures in the plant can run up to 2 degrees Celsius higher and start to drop off about a kilometer away. Now I do not know how big the plant is, but my plant covers 2000 acres of land and we have over 600,000 panels. A smaller site that produces 10 MW or so might not really have that big of an impact unless you are directly in the panels.