Please Critique My System

[AgroVenturesPeru]

Hi, I'm new to solar, though I've probably put in around one hundred hours research online in the past month. Of course, the more I learn, the more I realize there's more to learn. Anyway, I want to power a small off-grid home in the high jungle of northern Peru. 6 degrees from the equator at 3000ft elevation. Anyone know how the solar gain compares in this location on a cloudy day. I'm assuming it's still a pretty significant gain even through the clouds.

I have a small spring, with a decent fall in elevation from its origin. However, I'm not sure it provides enough flow to power a micro hydroelectric system.

Therefore I'm still interested in solar. It's hard to get things imported here, but I did find one company in Peru that seems reliable and offers some pretty solid brands like victron at reasonable prices. For example the MPPT I'll link to would cost me about $40 more off Amazon after international shipping and clearing customs, so it's probably just best to go with the local vendor down here.


My usage is roughly 10kwh per day.


(10.77kwh on a peak day using every single appliance including ALL the cooking appliances)


(9.77kwh per day is a more reasonable expectation on any given day)



Here's what I'm thinking:

Victron MPPT 150/85 Charge Controller

CONTROLADOR BLUESOLAR MPPT 150/85 (12/1200W/24/2400W/48/4850W) VICTRON - Panel Solar Peru

El controlador de carga Bluesolar MPPT 150/85 es un controlador con corriente de carga hasta 85A y tensión hasta 150V. Además el controlador de carga Blue Solar MPPT 150/85 tiene un seguimiento ultrarrápido del punto de máxima potencia (MPPT). El controlador de carga Blue Solar MPPT 150/85 tiene...

www.panelsolarperu.com

English: https://www.amazon.com/Victron-Smar...keywords=victron+150/85&qid=1600527835&sr=8-3






Victron Inverter Charger 48/5000/70-100


https://www.panelsolarperu.com/inversores/120-inversor-cargador-victron-48v-5000va-70a100a.html


English: https://www.springers.com.au/shop/product/pmp485021010-multiplus-48-5000-70-100-1568


Maybe this is overkill and I’d be better served with this Growatt alternative?


https://www.panelsolarperu.com/prod...tt-48v-5000va5000w-80a-mppt-cargador-60a.html






2 of these: Narada LiFePo4 48v 100ah 4000wh Battery


https://www.panelsolarperu.com/productos/170-bateria-narada-litio-48v-100ah-lifepo4.html


Specs in English: http://en.naradapower.com/upload/at/file/20170828/15039006435777018A76.pdf






8 of these panels: Peimar 450w monocrystalline

Panel Solar 450W Peimar Monocristalino Half Cell PERC Peimar Italian - Panel Solar Peru

Panel solar de 450W (vatios) de potencia el cual genera energía eléctrica mediante la radiación del sol. Este panel está preparado para funcionar en instalaciones solares de 24V (voltios) con un regulador, un inversor de corriente de 24V y dos o varias baterías de 12V. Este panel está formado...

www.panelsolarperu.com

Is this a decent setup? What would you do differently?

 

[Ampster]

Do you know how much those panels will produce based on how they will be mounted? Tilt and orientation to South can make a big difference..You are fairly close to the equator so if you have no shade you should receive a good amount of sun. That would be my starting point before i sized other components.

 

[AgroVenturesPeru]

Do you know how much those panels will produce based on how they will be mounted? Tilt and orientation to South can make a big difference..You are fairly close to the equator so if you have no shade you should receive a good amount of sun. That would be my starting point before i sized other components.

This brings up a good point. What would be the optimum placement in the geographic location? I'm assuming it would be oriented straight up towards the sky to capture mid day sun. The sun's trajectory does not significantly change throughout the year. In March and September the sun passes directly over the equator. In June, the sun is furthest away, but this is also happens to be one of the sunniest months of the year in my location.
Early March and late September are when the sun passes directly overhead.

Also, how could I estimate solar intensity? The sun near the equator is very intense. I would assume even an overcast day at the equator would be similar in solar intensity to a sunny day at very high latitudes.

 

[Ampster]

At the equator the best tilt angle is straight up. As one goes South of the equator the tilt North increases. In my earlier post I mistakenly referred to South orientation without regard to Peru's location south of the equator.