Solar sizing advice.

[culnan]

lets assume the follwoing: Peak sun hours in Toronto, Ontario ( My approx location)
Location:Toronto, ON |Summer Avg. 3.98 | Winter Avg. 2.13 | Year Avg. 3.44

Requirements- Maximum 2000wh/day
Battery Bank Based on 2 dayspower, with no sun.
2000wh/day x 1.5 (efficiency loss) =3000 wh/day
3000wh x 2 (days without sun) =6000wh
6000wh x 2 (Battery bank can only be depleted 50%) =12,000wh
12,000wh with 6 volt 428ah batteries-
12,000wh / 6 (volts) =2000ah
2000/ 428 (Ah of surrette s550 @20hr) =4.67 (# of batteries required)...round up to 6 batteries

SOLAR PANELS @ 2.13 sun hrs/day (winter hours)
2.13 x 250 watt panels =532.5 (Round down to 500watt/panel/day)
2000wh / 500 =4 (250 watt solar panels)

Does this all add up?

I have yet to figure out how to size a charge contorller, any suggestions would be helpful.

Thanks!

[inetdog]

I have yet to figure out how to size a charge contorller, any suggestions would be helpful.

Thanks!

If you are using an MPPT CC (advisable for your size system), then the calculation is simple:

Take the total panel power (1000W in your example) and divide by your battery bank voltage (you did not give that, but let us assume 12V (really to low a design value for your size bank, but....)). That gives you the approximate amp rating of the CC.
1000/12 = 83.3. So, going down to allow for panels producing less than full power and the CC be less than 100% efficient you would have an 80A CC. Or two 40A CCs each connected to 1/2 of your panels.