Instant water heating using solar

I want to understand how I can use solar panel for instant heating of 1 gallon water. The 1 gallon water should be hot in say 30 mins.
How should I set up the system preferably without a battery?
Advice from the experts will be highly appreciated.
How should I set up the system preferably without a battery?
Advice from the experts will be highly appreciated.
Comments
So, maybe double that number to allow for losses in panels, energy conversion, heat losses of water container, etc.
You did not mention actual temperature rise you are looking for, are you starting with ice water ?
Let me know if I guessed closest to your Final Answer :-)
19 SW285 panels
SE5000 inverter
grid tied
As Dennis has eluded to there are a LOT of variables!
So the basic info you need to figure out are;
2.42 watt required to raise 1 gallon water 1 degree
Starting temperature of the water.
Desired temperature of the water, boiling 212, hot shower 110-120, temperature water will burn your hands 140-150.
Solar panels in direct sunlight angled at 90 degrees to the incoming sun produce about 75% of their panel rating (a 100 watt panel can be expected to produce 75 watt in normal conditions, more in very cold, less in very hot)
How much heat will be lost in your container, an insulated water heater loses heat very slowly, an aluminum open container will lose much of the heat as you are heating it.
If you have more info we can give you more info. Solar doesn't do instant and heat very well, suspect you would be happier with gas... but I don't know enough about what you want to do to say that definitively.
- Assorted other systems, pieces and to many panels in the closet to not do more projects.
Note, that can be 145 watts for 1 minute or 2.42 watts for 1 hour.
If you do it with solar thermal. High noon sun is 1,000 watts (roughly 3-5+ hours of sun per day, depending on location, seasons, weather).
Heating water can be around 50% to 80% efficient with solar thermal.
Solar electric panels are around 15% or so efficient. You need more square feet or meters with solar electric.
-Bill
I am available for custom hardware/firmware development
If you need to get to boiling, there are concentrator setups to do it that will be simpler, cheaper, and more portable than a PV system to do the same thing.
Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
I am available for custom hardware/firmware development
Solar hybrid gasoline generator, 7kw gas, 180 watts of solar, Morningstar 15 amp MPPT, group 31 AGM, 900 watt kisae inverter.
Solar roof top GMC suburban, a normal 3/4 ton suburban with 180 watts of panels on the roof and 10 amp genasun MPPT, 2000w samlex pure sine wave inverter, 12v gast and ARB air compressors.