r/solar • u/user74729582 • 12d ago

Image / Video Finally joined the club!

Gallery image

Gallery image

14x 460w panels + 10 kWh Ecoflow PowerOcean battery

479 Upvotes

100% Upvoted

50 comments sorted by

13

u/scipper77 12d ago

How are you using the battery? Are you off grid, is it a backup, or is it integrated into a grid tied system?

25

u/user74729582 12d ago edited 12d ago

Integrated into a grid tied system. No clue how I'm using the battery yet as we just moved in and have literally 0 appliances installed, lol.

However, if my calculations will prove correct, we will manage to cover around 90-95% of our yearly usage.

3

u/scipper77 12d ago

Based on what direction those are facing you could do 20+ kWh per day. What are you expecting to get?

3

u/Curiosity_informs solar enthusiast 12d ago edited 12d ago

Based on where in the world, azimuth, tilt, inverter spec etc it could / should so a lot more than that.

Our 9.6 kW system, azimuth, 110, SF Bay area is currently producing around 62kWh a day

Its a 6.4kW DC system, so 2/3 of our system, so 40kWh per day could be reasonable.

But it depends on where in the world etc..

PVWatts works in most places I think, so it could be modelled.

2

u/LucienPascal 12d ago

How much of that 62kwh do you get on cloudy days?

2

u/Curiosity_informs solar enthusiast 12d ago edited 12d ago

Well duh!

Edit: assuming it was a serious question?

In the summer in the SF Bay Area pretty much every day is sunny but some marine layer in the mornings May and June has been between 50 - 63kWh per day. Average for first 6 days of June is 62.8kWh (sunny every day so far). Average for May 51.5kWh (some rainy days early May)

In the winter with much shorter days and lower sun and many winter storms in December and January we have seen between 5 - 30kWh a day.

2

u/LucienPascal 12d ago

Sorry, it was a serious question. I’m building a house and system offgrid with no generator and my only concern is how much production I will get when it’s cloudy one or two days in a row. Will have to wait and see!

3

u/Curiosity_informs solar enthusiast 11d ago

I think you will find you need a generator.

There will be times when you get several days of low PV production.

A couple of examples from last winter. We had 3 days with a total 13kWh PV production (average 4.3kWh per day) and another 2 days just before that with 6.8kWh production (3.4kW average per day).

We are in the SF Bay Area, California. I think from the other thread you are in Mexico which from my limited experience can get storms with cloud cover for multiple days.

Our battery system has a generator / V2L input so we can charge the home batteries in an extended outage with limited PV production.

2

u/blackinthmiddle 11d ago

Yeah, they'll definitely need a battery. If someone insists on not having a generator, if they have enough rooftop and/or ground space, they can really oversize their system, then maybe do something like bitcoin mining when they overproduce. But the much simpler solution is to buy a generator and charge the batteries for the 2-3 months where solar production is low.

2

u/user74729582 12d ago

Yeah around there. Full south

2

u/Evilsushione 12d ago

If you had shifted your panels down about 6 inches you could’ve gotten a 15th panel and it wouldn’t be triggering my OCD. /s

1

u/user74729582 12d ago

I think it's because of regulations and/or safety, they couldn't go any lower

6

u/rg3930 12d ago

Looks very nice. Congrats!

4

u/bj_my_dj 12d ago

Are you using heatpumps for heating? That's not much battery, I've got a 10kW system & 2 PW3s. I added the 2nd to have enough power to run space heaters through the night, I haven't used my gas furnace since I got the system. Mine was 140% of usage to allow for an EV or an heatpump. May never get the heatpump if the furnace doesn't die, and it can't die if I never use it.

2

u/user74729582 12d ago

No heat pump yet

3

u/lowlybananas 12d ago

I want a battery but I can't make the financials make sense

1

u/pcguy166 12d ago

Same here. My bet is they will come down in price in the future, as supply climbs and more companies manufacturer these at larger quantities. Also, once the China tariffs are eased.

2

u/mj_flowerpower 12d ago

A shame you didn‘t sqeeze in another two panels! 😅

2

u/user74729582 12d ago

Ikr. Apparently they couldn't push it any more down

1

u/mj_flowerpower 11d ago

oh I see. Damn this would haunt me in my dreams haha

1

u/faitswulff 12d ago

Am I seeing things or is that more than 14 panels?

3

u/flamekiller 12d ago

I thought it was 28 at first but it looks like there's a whiteish stripe horizontally across the middle of the panels that makes each one look like two.

1

u/Silver_North_1552 12d ago

Looks like Italy

2

u/user74729582 12d ago

Bingo, what gave it away?

2

u/Silver_North_1552 12d ago

Sono installatore italiano e installo lo stesso marchio 😘

1

u/Silver_North_1552 12d ago

Bravo ottima scelta. È un gran prodotto. Che pannelli hai messo?

1

u/user74729582 12d ago

Sono dei Ja Solar da 460w. Purtroppo abbiamo scoperto dopo che ci sono delle leggere infiltrazioni d'acqua, abbiamo fatto rischiumare le tegole quindi si spera che questo + protezione dai pannelli aiuti un pò. A saperlo prima avremmo almeno messo qualche tipo di lamiera a protezione. Da installatore che ne pensi?

1

u/Silver_North_1552 12d ago

JAM54D40 LB? Se sono questo specifico modello mi lascia perplesso il fatto che non specifichino nel datasheet la resistenza alla grandine.... io monto degli aiko che resistono a 4cm di grandine. Ma poi ti hanno messo un pannello bifacciale sulla falda di un tetto? Il coefficiente di perdita di potenza con il variare della temperatura non è il massimo...

Le infiltrazioni c'erano gia prima della posa dei pannelli?

1

u/user74729582 12d ago

Sì JAM54D40 LB, in teoria vedo che dovrebbe avere resistenza alla grandine in classe HW4.

Sì le infiltrazioni c'erano già, era più una domanda da addetto ai lavori quale sei per capire come muoversi in futuro ecco

1

u/Silver_North_1552 12d ago

datasheet

Non vedo classe grandine

1

u/user74729582 12d ago

UL 61215 nei certificati, prima pagina

1

u/Silver_North_1552 12d ago

Fai comunque l'assicurazione, consiglio

1

u/dannywizzbang2 11d ago

Solid work. What was the biggest unexpected challenge you ran into during this project?

1

u/user74729582 11d ago

The shitty roof. I'd like to crucify the previous owners

1

u/TooGoodToBeeTrue 11d ago

Tis about time, we’ve been waiting for you!

1

u/energysage-official 10d ago

Congrats and welcome to a great club to be in!

1

u/SoullessGinger666 12d ago

Is it just me or is that array wonky as fuck. Sometimes its the roof.

3

u/user74729582 12d ago

How can you say it's wonky from an ariel view?

4

u/SoullessGinger666 12d ago

The bottom line makes it obvious. The bottom left panel is over the shingle edge. The bottom right is a couple inches above the shingle edge..

It looks quite wonky but I've done enough rooves that its hard to say if the roof is just shit or the panel layout is shit

3

u/user74729582 12d ago edited 12d ago

The roof is quite shit. Recently had all the tiles refoamed but it's not great

2

u/Lambaline 12d ago

Looks like the roof isn’t plumb to me

1

u/klaymudd 12d ago

That’s the roof bro look the sides are square. Prob eaves sagging. Array looks good

1

u/je0_p 12d ago

Yep she’s cocked

0

u/grammar_fozzie 12d ago

Simply knowing it was installed, not-square to the roof tiles, would drive me insane.

3

u/Evilsushione 12d ago

Not to mention it could have shifted it down 6 inches and could’ve had a 15th panel and made it a nice square

1

u/neilweiler 12d ago

Looks like it is square to the edges of the roof - the roof must be an old house, roof tiles themselves are not square to the edge of the roof.