The future will pass you it with biomass?

[Ahmed]

The supply of firewood may suffer from shortages due to the low elasticity of production, which is always forecast, and therefore poorly adapted to fluctuations in demand. For the moment, it should not be confused with a structural shortage.

[moinsdewatt]

District heating in Salon-de-Provence switches to renewable energies

BY FRÉDÉRIC DOUARD 22 NOVEMBER 2021

The public service delegation contract for the district heating network of Salon-de-Provence signed between Salon-de-Provence Energie Verte (SEV), a subsidiary of the Coriance Group, and the Aix-Marseille-Provence metropolis took effect on the 1st November 2021. It will make it possible to decarbonize three quarters of heat production and will promote biomass and more marginally solar energy. SEV will invest 25,5 million euros to carry out all the work essential for the energy conversion of the heating network.

Regarding the means of production, a new boiler room, the Broquetiers boiler room, will be built in the south of the city and will produce 100% renewable heat, the complement being provided by the existing natural gas boiler room in Les Canourgues, which will be renovated to integrate in his neighborhood.

Three renewable energies valued and five technologies used

The basic renewable energy will be landscaped pads, ie pruning and green waste. It will be used in a 7,8 MW boiler. This boiler will be completed at the flue gas outlet by a condenser supplied with cold by an absorption heat pump on the return from the network, the assembly making it possible to recover 2,1 MW more from the production of the boiler, thus totaling 9,9, XNUMX MW.

2 m² of solar panels will make it possible to preheat the water returning to the boiler, as well as the domestic hot water, the Salon-de-Provence network then becoming the largest heating network in France to use solar thermal energy.



A water storage of 200 m3 will reinforce the inertia of the network, making it possible to store renewable energy at times of low demand and to release it during peak demand.

A biodiesel-type rapeseed-based agrofuel will be used to back up the wood-fired boiler, with a boiler of equivalent power to wood, to preserve the rate of renewables beyond 50%, and therefore its VAT rate. reduced, if the wood-fired boiler were to be abnormally stopped

A densified, developed and modernized network
Today, the heating network extends over 5 km and distributes 38 GWh per year. SEV will renew 70% of the existing pipes and extend the network to the whole city. Ultimately, the network, with a total length of 15 km, will supply 6900 housing equivalents and its annual heat sales will reach 74 GWh.

The 25 existing substations will be renovated and 43 new smart substations will be created. To remotely supervise the network installations, all the substations will be made communicating.

Work to extend the network and modernize the substations will begin in 2022.

https://www.bioenergie-promotion.fr/916 ... uvelables/

[Ahmed]

Consequence of the war in Ukraine and Germany's heavy dependence on Russian gas: primary and secondary wood processing waste (called "related" waste) usually used by the particle board industry (partially or exclusively) are now being taken over by German thermal and electric power stations in search of a substitute for their previous fuel and panel manufacturers are therefore forced to find new suppliers of roundwood in a hurry (which some had abandoned because of their higher price) . it is a difficult situation because these are not very flexible markets.

[sicetaitsimple]

It surprises me a bit, because feeding a gas plant with wood waste, unless it was originally designed for it, doesn't really seem possible. Do you have a source?

[Ahmed]

This is only surprising in appearance, because in the case of biomass boiler rooms, these are systematically coupled to a gas boiler. As far as electricity production is concerned, I obviously do not imagine putting wood waste instead of gas, but restarting coal or lignite thermal power stations by supplying them in this way...
My sources are professional and come from a major logger.

[Ahmed]

Another notable fact, the local wood log wholesaler has never had so many orders in these spring months: people are stocking up before winter; maybe they fear a shortage? In any case, it is very reasonable, since there is no dry wood*, but these logs split and cut to length of use, suitably stored, will be burnable during the fall.
This is obviously to be related to the current craze for wood stoves that many have installed, especially because of the prices of other energies.

* Except at small "makers" who sell their surplus...

[sicetaitsimple]

Your paper log press is just in time!

[Christophe]

Consequence of the war in Ukraine and Germany's heavy dependence on Russian gas: primary and secondary wood processing waste (called "related" waste) usually used by the particle board industry (partially or exclusively) are now being taken over by German thermal and electric power stations in search of a substitute for their previous fuel and panel manufacturers are therefore forced to find new suppliers of roundwood in a hurry (which some had abandoned because of their higher price) . it is a difficult situation because these are not very flexible markets.

Yes and suddenly, it is the customers of ikea and mobalpa and those who heat themselves exclusively with pellets who will morfler...

Although Ikea is distant sawdust...

[Christophe]

Your paper log press is just in time!

So we know the author of all this shit!!

Come on Ahmed a little courage! Confess everything!

[Ahmed]

Christophe, you say:

Yes and suddenly, it is the customers of ikea and mobalpa and those who heat themselves exclusively with pellets who will morfler...

I have said it for a long time, the resource only seems inexhaustible because its uses were limited by the existence of other deposits, fossil ones, and it was foreseeable that the logic of waste supply would easily be defeat as soon as the fragile balance that allowed it is broken...
Further:

So we know the author of all this shit!! Come on Ahmed a little courage! Confess everything!

The messenger of bad news is not the author; I only have the merit of the anticipation...

Sicetaitsimple, you declare:

Your paper log press is just in time!

Certainly, but only until the current super waste is still possible! Especially since paper is made from wood, therefore an increasingly coveted resource...