Something to note about your link to solar fences is that one of the cons mentioned is that panels can’t produce power for half of the day because they’ll be facing away from the sun.
Bifacial panels exist and can collect energy from both faces of the module. We in the utility-scale space use these all the time. You’d want these over monofacial panels for fence applications
Just because those panels will need to be replaced in decades time doesn’t mean they won’t have value then.
NREL estimates that PV 80-95% of modules’ materials can be recovered through recycling, and there is constant academic work on refining the EoL process to better delaminate panels so they can be better sorted and their materials better reused.
I can’t find the figure, but I believe the IPCC found in their 6th Assessment Report that the cost to deploy renewables + battery storage, and manage the grid more intelligently on the backend, absolutely demonstrate lower costs than it takes to build new nuclear. I want to say that that finding still out value on our existing nuclear fleet, so we definitely don’t want to shut any existing plants down if we don’t have to.
I don’t think fission nuclear will get our energy systems off of fossil fuels. Fusion nuclear has the potential to do this, but by the time that technology reaches commercial operation, renewables alone will likely be in the multiples of TW of generation capacity.
Nuclear should be part of the future if modularity and MSRs/thorium reactors can breakthrough. Until then, solar/wind + storage baby
Something to note about this chart is that ground-mount silicon solar PV isn’t considered for sharing land use with activities such as farming in comparison to how onshore wind is (i.e. agrivoltaics).
NREL in the US estimates that there are currently ~10.1 GW of agrivoltaics projects spread across ~62,400 acres (or ~7 m^2 / MW).
Even this being said, I think brownfield or existing structures for new PV is the way of the future for solar PV. There is so much real estate that could be used and has the potential to offset grid demand growth while providing greater reliability for consumers. You’ll need the big players to help with industrial loads, but even then, the growth of Virtual Power Plants (VPPs) has the potential to balance loads at the same scale as the big players for the prosumer market.
Edit: I’ll also make mention of floatovoltaics, or the installation of solar PV on bodies of water, either natural or artificial. This is a burgeoning side of the industry, but this is another area that could present net zero or even negative land use per unit of energy.
If you’re trying to maximize energy collection then yes you’ll want to face the fence rows NS.
But there are also some benefits for making use of vertical bifacial panels oriented EW. You get a bimodal energy plot: one in the morning and one in the evening when the sun’s direct rays shine near horizontal (something NS panels can’t collect).
I’d actually be interested in reading the literature on mixing these types of panel orientations to see what the resulting production yields would look like, and if stakeholders like utilities would find any benefit in them to help better manage grid demand in those peripheral times of the day.