ROI and pv systems

[Thys LOW Elektries]

Why is it that when somebody buys a PV system the first argument is about ROI on your PV system? Do people do that to justify the expense?
When they buy a generator for load-shedding they go to Makro, buy the generator, and pay the money no questions asked.
Why is the ROI on the PV important but not on the generator?
When you buy a house, a car, or a bakkie ROI is not important, but when you buy a PV system ROI suddenly becomes a magic word, like the ROI will justify the cost of the PV system and the rest of the benefits are not important!

Just a thought

[Justloadit]

My reply to this question is as follows,

You are buying this solar system for your convenience, if you are concerned with ROI, then don't spend your money it is a waste.
I usually use the wife being pissed off because she can't watch her daily soapie, and then say, tell your wife that the ROI was unacceptable.
Happy wife, happy life
Solves that problem.

[Andrew_van_Zyl]

Why is it that when somebody buys a PV system the first argument is about ROI on your PV system? Do people do that to justify the expense?
When they buy a generator for load-shedding they go to Makro, buy the generator, and pay the money no questions asked.
Why is the ROI on the PV important but not on the generator?
When you buy a house, a car, or a bakkie ROI is not important, but when you buy a PV system ROI suddenly becomes a magic word, like the ROI will justify the cost of the PV system and the rest of the benefits are not important!

Just a thought

It's never a ROI discussion. It's a grudge purchase like insurance

Sent from my SM-A226B using Tapatalk

[Isetech]

When you purchase a generator, inverter with a battery be it a trolley type or installed, you cry because you have to buy something to provide a service which should be supplied and then every time you use the equipment you have to keep paying, for some this could run into the tens of thousands and big companies hundreds of thousands.

The outlay of the equipment is a grudge purchase, you buy something you shouldn't need to buy because you pay rates and taxes, you pay a fee for for an infrastructure which is suppose to provide a stable power supply, which is why the monthly SSEG service fee if you install a solar system and dont fully utilise service is grinding people.

Once the equipment is purchased, its doesnt stop there, then you pay for fuel for the generator, and the electricity to charge the batteries, because of all the losses AC to Dc and back to AC etc etc, your monthly electricity bill increases, this is something many didn't take into consideration when purchasing the equipment.

Then we go into ROI (return on investment), if you add solar to the mix, you start producing your own electricity.

You get grid tied inverters which power the property during the day (depending on the sun and time of year), any excess is fed back into the grid.

You get a hybrid system which powers the property, and any excess power can be fed back into the grid, as a bonus, and has a battery to keep the lights on when there is no power.

The ROI is the money you save on electrify or paid back to you from the council for the electricity you feed back into the grid, it normally around R1.25 per hwh. There are programs you can use to calculate this so called ROI.

There is some confusion with regards to spinning meters and ROI, some people think that they get the full amount in return during the day then buy back at night. Let us know how that is going right now

This is where your system design and SSEG registration comes into play, if your system is designed and installed correctly, and registered, you should get some form of ROI, how much will depend on many factors.

[Isetech]

The big question at the moment is how is the public going to respond once the SSEG registration gains momentum, are they going to offer amnesty for unregistered systems and then suddenly roll out the fines and disconnections which will create absolute chaos, or will they just start targeting people on a small scale, which will reduce the backlash. It will be easier to control a small group, than tens of thousands who are not registered.


Does anyone have the stats on unregistered SSEG's in SA? I would guess sit in the hundreds of thousands by now.

Could there be something else in the pipeline, maybe a roll out of prepaid or digital meters. It seems that everyone is sitting waiting to see what is going to happen.

I dont believe there is enough resources, equipment nor engineers to tackle this massive problem right now.

What is going to happen, nobody can answer these questions right now.

[ACElectric]

GENNIE = 15K
INV+BATT = 38K

[Gene]

Yes no ROI as you are selling to a customer that knows nothing of electricity and thinks otherwise, but.... if the customer has some savvy then he can control this situation , i've installed a 5 kVa inverter ,batt and 8 550 w panels,- for 3 months the amount of electricity was the same as the previous year, however we had very little sun during these winter months, the last month however there was a saving of R888.00 (previous year R1849.00) electricity used 358 kWh (previous year 696 KWh)
But i have installed a smart timer on an old fridge switching every hour during nightime (fridge 700 watt draw)
Also put in a 2 kW element on the geyser - smart timer for only daytime consumption. i try to stay below 3 kW usage during daytime
Also installed a energy control unit for the stove -geyser, (stove on ,geyser off)
So yes if you play your cards right you will get ROI, but you have to get your planning right, i see people with 20 to 30 solar panels, really dont know if that is necessary and a waste of money