ENERC wrote:Eric Dupont wrote:I think that the most interesting would be to pool the production over ten homes, to have a single energy storage system, with several photovoltaic power plants 10 times 5 kw for example and a wire that goes around the homes without go through the public domain. at this account it would be possible I think to be less expensive than the network.
It's technically possible, but Enedis made it incredibly complicated (there was a Sicetaitsimple post about it on another topic with the document referenced).
The problem with pooling is that you have to find a legal person who contracts the contract on behalf of the participants in the operation. What about things that are not easy to manage, like the maintenance? what happens if an owner changes? and with tenants? how are the productions distributed?
I tested at the level of a building manager and the answer was: nobody is going to advance the money to be profitable in 10 years. [when the insulation is going to be done by force during the next facelift, they will understand ....]
On reflection, I see 3 tracks:
- citizen initiatives by a group of highly motivated people,
- mayors who develop eco-districts,
- building co-ops on condition of finding financing without advancing the money at the start
That said, the cost per W drops sharply from 0W to 6kW, then stabilizes up to 36KVA (the limit of three-phase 230V). Then, it is not super-interesting because it is necessary to pay the transformer in HTA (that socket).
I think that within 10 years, people who have enough surface area will install ~ 9kWp (2500 € of PV). Why? well because most of the cars will be electric with Vehicle2grid, as Phil59 rightly pointed out.
And with the ban on oil-fired boilers, then soon on gas, we are all going to switch to the CAP and therefore a higher installed PV power.
I could be wrong, but that's how I see it in the next 10 years.
