Project Goldensun

This is what i had planned for this spot.looks like somebody else had the same idea.i didnt think the color mattered much but i guess it does.
Im a true believer in this tech from my engineering background.as long as the heat transfer pipe doesnt erode or scale buildup.
My thought was a hotplate buried six feet down with stainles brake lines as water lines.the hotplate is ran by a in series solar 120vdc supply straight down to the hotplate.
Any configurations by anybody is basically about sands/glass storage capacity and cheap price.
If earth has a future,this would be part of it.ive been trying to find accurate loss rates.does the heat migrate up fast,slow,mostly upward?
It has to stay dry though.it may be a thousand dollars gives you lifetime,maintenance free and utility bill free hot water.
Solar nowadays is solid builds.in my plan,odds are the element would burn out too fast.thats alot of hot sand to dig up to replace an element.
The whole idea sounds unbelievable but the math says it should work great.
Insulating the wires with fiberglass is manditory as that copper wire gonna get hot.has to be a temp off switch.otherwise it would just melt.
A real big pit could power neighborhoods or factories.
One megawatt steam generator new is one million dollars.thats payed for in one year.no more brownouts or blackouts.easily prorate it out to twenty years and bills are twenty dollars a month.solid,reliable,year round power.

Hypothetically a car could run on a sand battery.
Or sand batteries could be swapped out at at sand gas stations.five minutes and gone cee yah!
Little steam turbine system pushing an electric car.
The research i read said molten glass is 1 megawatt of power per cubic meter.if thats true,thats superman abilities.

Nobody wants to wreck and be melted but hot sand ruptures is not so scary.way less chances of permanent damage.
way cheaper and safer than lithium.
Higher energy storage by a thousand fold.

As you can see,sand batteries could easily be the future.

Youtube gave me this.dudes rockin it.hes even using 120 volts dc.i dont know how hes creating 120 volt dc as those two panels probably cant produce 120 volts without an inverter.
Hes using hotplate burners like i thought of.
Hes using ceramic tubes as insulators for wires.i like his rig.
Now imagine doing that in a a pit for home hot water or a thousand fold for a steam generator for a small town.

Those panels should last twenty years.if the burner last twenty years then its a very efficient system at very low cost and almost no maintenance.

He has that element doubt also.if the elements hold up,hes a winner.