Apologies if this is a stupid question - I've been going through posts looking for an answer and I am still unsure.

 

I am building a house and am hoping to get off the grid to as large an extent as possible. I am envisioning about 28 Canadian panels, two Freedomwon 30/24 batterries and two Sunsynk 8Kw inverters.

 

Every installer who has given me a quote or whom I've spoken to seems very much against the Sunsynk. The last one tried to dazzle me with big words and went on about the MOSFETs in the one versus whatever the other one has.

Am i being pushed for money or is there a real difference which makes the Vectron worth it?

 

Thank you

 

Pooks

I will say only this, pay once cry once, or pay a few times and cry as many times as you like. No it's not a dig at cheaper alternatives. I had to make a choice too, so I saved up for a few years before buying, yes a few years. My main post on here explains why. You making a good choice either way, save the Escam madness and get as far off the CancER system as you can....

Google - Technolgy "disruption"....Sunsync is disrupting Victrons market. The older, more established product, Victron, is well developed, tried and tested and provides comprehensive functionality...at a price, which people are prepared to pay for based on the functionality and perceived quality. They focused on niche functionality that is really for a niche market (not required or used by everybody)...

Along comes Sunsync, which is much cheaper, with a more "home user" market that is very quickly gaining on the Victron functionality space as well..

Do a simple price/functionality comparison (compare only the functionality you require) and you will see that the Sunsync wins hands down.

Victron installers like the rpoduct because they can maintain/monitor the victron setup remptely (apparently a HUGE selling point) but Sunsync will do this as well very soon (in beta testing, I beleive)

In the next 12 months I'd like to compare sunsync installs vs Victron installs.

For ease of use, simplicity, local (end user support) I'd go sunsync any day, based purely on price/functionality/support availability   (and I have a Goodwe!)

 

Thank you so much for these very informative answers. I am very grateful that you all took the time to reply.

 

I wonder if I could further pick your collective brains. My household uses around 1500kw of power per month. A lot of it during the day when the ironing and laundry get done.

 

I am thinking about putting in around 28 405W Canadian panels with 2 Sunsynk 8Kw invertors and 2 Freedom Won Home 30/24 batteries to try and get as energy independent as possible. Does this sound like a reasonable setup?

 

Thank you again.

Maybe have a look at my fully documented system, 12.3kWp panels and one 8kW inverter charger plus one String inverter and currently 16kWh battery but expanding rather soon to 48kWh.  Planning here There are links you can use to plan your system if you wish.

48 minutes ago, Pooks said:

Thank you so much for these very informative answers. I am very grateful that you all took the time to reply.

 

I wonder if I could further pick your collective brains. My household uses around 1500kw of power per month. A lot of it during the day when the ironing and laundry get done.

 

I am thinking about putting in around 28 405W Canadian panels with 2 Sunsynk 8Kw invertors and 2 Freedom Won Home 30/24 batteries to try and get as energy independent as possible. Does this sound like a reasonable setup?

 

Thank you again.

Hi Pooky it looks like a healthy budget that you have, plan looks good. Just to check are you planning on feeding in to the grid? Does your municipality allow that?

 

If not I'm not sure what added benefit that you won't get form 2 Axpert max 8kw? With 60kw storage. Maybe a dedicated generator input?

I actually do want to feed into the grid and plan on upgrading to an inverter that supports it as soon as my municipality sorts it out. 

51 minutes ago, Pooks said:

Thank you so much for these very informative answers. I am very grateful that you all took the time to reply.

 

I wonder if I could further pick your collective brains. My household uses around 1500kw of power per month. A lot of it during the day when the ironing and laundry get done.

 

I am thinking about putting in around 28 405W Canadian panels with 2 Sunsynk 8Kw invertors and 2 Freedom Won Home 30/24 batteries to try and get as energy independent as possible. Does this sound like a reasonable setup?

 

Thank you again.

Hi Pooks, 

It sounds like our consumption if very similar. 

I am running 1 x 8kw Sunsynk inverter with 28 x 455 Watt panels in an East West split with & 2 x 6kw/hr BSL Batts

My monthly winter power consumption maxed out in July @ 1650kw/hr's  of which I purchased 660kw/hr from City power and generated 1060kw/hr myself (this was with 24 panels prior to upgrading to 28 panels)

This month I am on 1510kw/hr of which I have produced 1290kw/hr myself and used 279kw/hr from City Power. 

My experience is that the main thing is to schedule all your heavy loads to daylight hours and minimise your parasitic loads at night. 

Having an East/West Split with my panels definitely helps as it gives me a much wider spread of power during the day.

2 x 8kw Inverters & more batteries would definitely help as my inverter runs quite hard during the day, my max daily production is 56kw but my batteries are usually fully charged by 13:00 so there is usually quite a bit of power available with no where to go. I decided to go with extra panels so as to get me fully charged on the marginal days. 

I have two totally off-grid installations (my home, and my office). I started with my home about 5 years ago (a Growatt with 2kW of Solar World panels), added a Goodwe and another 5.5kW of panels, and (eventually) 24kWh of Pylons. Last year I changed the Growatt and the Goodwe for a Deye 8kW. At my office I had 32 Canadian Solars feeding a pair of Kodaks (and briefly a Growatt) with 14kWh of Pylons. I changed the Growatt and the Kodaks to an 8kW Deye last year... and have NEVER had occasion to look back or wonder whether I did the right thing.

Absolutely flawless operation on both properties for more than a year now.

In retrospect I would never have been able to get both properties off-grid if I had gone the Victron route. As it is both properties are well into profit (original investment paid back long ago) now which has allowed me to invest freed-up cash in all sorts of new developments.

10 hours ago, Sc00bs said:

2 x 8kw Inverters & more batteries would definitely help as my inverter runs quite hard during the day, my max daily production is 56kw but my batteries are usually fully charged by 13:00 so there is usually quite a bit of power available with no where to go. I decided to go with extra panels so as to get me fully charged on the marginal days. 

Agree on this. I am over-panelled, but on a few consecutive overcast days it's still a close-run thing.

At my office I have a standby 6.5kW silent diesel genny on the ATS output from the Deye, at home I have a 'spare' 4kW of panels on their own Kodak invertor which I switch in to help charge (I also have a standby genny, but it hasn't been used in a year).

I am doing a major extension project at my office right now and will put up 4 more strings of panels and a second Deye 8kW (paralleled) when I have finished. Power is like beer or ammunition. You simply can never have too much.

34 minutes ago, PaulinNorthcliff said:

 Power is like beer or ammunition. You simply can never have too much.

@PaulinNorthcliff ROTFLMAO I agree 100%, have been thinking of new ways to use the extra power.

Pity there is no way to generate Methane on a small scale as yet, maybe some SpaceX tech will filter down for household use

30 minutes ago, Sc00bs said:

@PaulinNorthcliff ROTFLMAO I agree 100%, have been thinking of new ways to use the extra power.

Pity there is no way to generate Methane on a small scale as yet, maybe some SpaceX tech will filter down for household use

Methane, huh?

Well... I have found that Staffordshire terriers are amazingly efficient...

Seriously, though, I am seriously considering creating a small pumped storage facility just to absorb extra power (keeping the panels cooler and hopefully preserving them).

Before I cut the Shitty Power umbilical I was happily pumping power back into the grid. We estimate that for a number of years we supplied all the power for 3 or 4 of our neighbours (those old rotary meters are fantastic).

Hydrogen gas is made using electrolysis.

SNG Synthetic Natural Gas -  Methane (Ch4) is produced using the Sabatier Process with Hydrogen (H2) & Co2, produces Methane & Oxygen.

Liquid Methane has the advantage over liquid Hydrogen that it can be stored at a much lower pressures than hydrogen while remaining liquid, <4Bar depending on temperature obviously. 

I have Bull Terrier's I reckon I could power my stove if I connected them up

 

Installers prefer Victron due to their robust RMA policy (warranty). Always stock available and RMA processed within a day or two. Sunsynk currently has a 6-8week waiting period for replacement units. So, to save their reputations, reputable solar installers rather purchase new Sunsynk units for clients and then sell the faulty units after it has been fixed. Added to this, the training and reliability of the Victron is excellent. Also the Victron uses robust toroidal transformers. Nothing against Sunsynk, but only time will tell if the Sunsynk units stands up to the Victron