what time of day do you hit 1.5 amps of charging from solar?

[pianotuna]

Hi all,


Today I found that I was covering parasitic loads by 90 minutes after sunrise.

Details of my system are in my signature.

[MEXICOWANDERER]

Yeah my "dream" is a twin axle U-haul type trailer with four flip-up sides of highest efficiency panels, a false floor loaded with lithium batteries, a magnum inverter or two, and a small low speed diesel motor powering a couple of hairpin alternators. All I need is Scrooge McDuck's Money Bin. Sigh...

[pianotuna]

How many mpg does that beast get? Top speed 3 mph? LOL

MEXICOWANDERER wrote:
MIDNIGHT

[MEXICOWANDERER]

MIDNIGHT

[JiminDenver]

Due to a low overnight discharge to 12.57v our battery is back to float within a hour of sunrise. Even faster if I'm tracking the sun, sometimes before it clears the Terryall mountains and treeline. After that the system becomes a micro generator covering our loads the rest of the day while the battery sits in float.

[mena661]

Simplygib wrote:
Probably a few seconds. But my parasitic load is -0.005 amps so it don't take much. 🙂

I miss my old 5th wheel for that.

[Simplygib]

Probably a few seconds. But my parasitic load is -0.005 amps so it don't take much. 🙂

[2oldman]

smkettner wrote:
1.5 ramping up or floating?

I thought he meant the batts were past bulk..ie "charged."

[red31]

I'd need ~400 W/m*m, in December the closest live data showed that happened on a flat panel ~2 hrs after sunrise. But my yard is heavily shaded in the summer but the panel measured 4A Isc vs spec 3.8 in full noon sun on a day the same site showed 1000 W/m*m.




Live data and history
http://www.nrel.gov/midc/

[KJINTF]

Depending on use condition
Most days this time of year by 11:00am

[pianotuna]

Hi BFL13,

I'm trying to find out what time past sunrise that parasitic loads are being met at different places. A world clock (timeanddate.com) will let you look up the sunrise time for a particular location.

SMK I had a solid light on the charge controller. Voltage was 12.5 before the solar came on.

If parasitic loads are being met the battery bank is "at rest". I'm attempting to find out how many hours per day that happens.

[time2roll]

1.5 ramping up or floating? Either way it is fairly early depending on use and conditions.

[BFL13]

Here we have to wait till the sun gets up over the coastal mountain range, so it is already fairly light out.

With 130w panel pointed in contraption, I have notes from last August 3rd, when we got 1.4a at 0600 (not sure when sunrise was then) and 4.1a by 0700. Gets to 8.2a when sun high enough (Isc of panel)

Obviously I got more amps at those times using 330w this summer than with the 130w.

What's the reason for this question?

[MrWizard]

i guess you mean what time of the morning

i have no idea
as i seldom get out of bed before sunrise, unless its a nature call

in the afternoon, with all the fans running in this 'HOT' as blazes weather, i'm still getting 2>3 amps at 6 pm

1.5 hrs before sunset

[2oldman]

About 3pm