We need these solar panels ....quickly !

[topspeed]

I picked this up elsewhere.



"The price of 32% efficiency IMM (Inverted Metamorphic Multi-junction) solar cells can vary depending on various factors such as the manufacturer, quantity, location, and other market factors.

As of my knowledge cutoff date (September 2021), the cost of IMM solar cells was estimated to be around $4 per watt for production-scale quantities. However, it's important to note that this estimate is subject to change and may have already shifted due to market fluctuations and advancements in technology.

It's always best to check with specific manufacturers or suppliers for current pricing and availability of IMM solar cells."

 

[Hillhater]

Why ?,..
a 10% increase in panel efficiency still doesnt help much for a system with a overall CF of 15% or less !

 

[topspeed]

Why ?,..
a 10% increase in panel efficiency still doesnt help much for a system with a overall CF of 15% or less !

Increase is nearly 50%.

Aviation is possible with these easily.

15 m2 of these on wings provide 5 KW of power.

 

[topspeed]

HPAs only need 250 watts to stay airborne.

 

[topspeed]

Near equator in mid day 65-70 KW is possible with this.
Little need for batteries. 6-10 passengers.

 

[neptronix]

I don't know a lot about airplanes but it's quite amazing how close we are to one that just flies on solar energy.

If IMM cells are 10x the price of ordinary ones.. i see why they're not mass adopted!

 

[topspeed]

I don't know a lot about airplanes but it's quite amazing how close we are to one that just flies on solar energy.

If IMM cells are 10x the price of ordinary ones.. i see why they're not mass adopted!

I don't know a lot about airplanes but it's quite amazing how close we are to one that just flies on solar energy.

If IMM cells are 10x the price of ordinary ones.. i see why they're not mass adopted!

They claim 4 USD per watt...if mass produced.

 

[Hillhater]

Near equator in mid day 65-70 KW is possible with this.
Little need for batteries. 6-10 passengers.

…and how much at 6 pm ,or 9 pm ?
..or when a cloud bank rolls over ?
..or when it is not flying in perfect attude to the sun ?
..it would need batteries !

 

[topspeed]

Not necessasarily..Sun Seeker 1 travelled across US in 1991 with less efficient panels using 1,5 KW for a single a seater.

Some batteries would need to be...to get higher quickly.

 

[Hillhater]

Not necessasarily..Sun Seeker 1 travelled across US in 1991 with less efficient panels using 1,5 KW for a single a seater.

Some batteries would need to be...to get higher quickly.

Sure ,a remarkable feat.….but it took over a month and more than 20 individual flights to make that trip !
It is not a very practical means of flight propulsion if it can only fly in daylight hours..and slowly.

 

[topspeed]

Sure ,a remarkable feat.….but it took over a month and more than 20 individual flights to make that trip !
It is not a very practical means of flight propulsion if it can only fly in daylight hours..and slowly.

Right but efficiency had tripled since.