SunTech solar panels test vs SCHOTT solar panels test

The consumer products test foundation Öko Test in conjunction with Photon examined all major panels available on the biggest solar power market.

Here is the score:

1. SCHOTT test result: "very good"

2. SunTech test result: "insufficient", later revised to "good".

The panels examined were SunTech STP205-18/Ud and SCHOTT POLY 220


Key findings will be explained in the coming blog post.

The full test can be downloaded here. Not for free unfortunately, and in German.

SCHOTT POLY 220

SUNTECH STP205-18/Ud

Which inverter to chose?

the inverter is the heart of the system, it will define the output!!!

Watch out for cheap brands. Only rely on high quality (e.g made in Germany)

it should have at least a 95% efficiency.

Big differences are also the displays and the amount of data you can read out of them.


Make sure it has a nice LCD-Display, that shows you daily output, yearly output etc. Otherwise, you will not know, wheather the system performs as promissed.

Why i chose Schott solar panels

SCHOTT solar have a positive power tolerance only.

The weakest panel in the string defines the total capacity.

Ergo: With SCHOTT solar, I get what I pay for. Most solar panels have a negative power tolerance of up to -5%.

If you pay for a 1.5 kW system, it's very likely you'll end up with a 1.42 kW system. The bad thing, you'll never find out, unless you test each panel individually under standard test conditions.....

The difference with SCHOTT solar is, you have a positive power tolerance only. If you buy a 1.5 kW system, you will get a 1.5 kW system or potentially 3% more.

The latest scam: “free” solar power | Herald Sun Andrew Bolt Blog

Good advice about cheap solar power systems:

The latest scam: “free” solar power | Herald Sun Andrew Bolt Blog

How does the Feed in Tarrif work in Victoria?

Victoria is on a net feed-in tarrif.

That means, the energy that's generated by the solar power system is fed into the house first. Whatever is not used, is fed into the grid.

For example: My 2.8 kW solar power system generates on average around 11.2 kWh of electricity per day.

During the day, me and my partner are at work, i.e. appliances like our fridge are using only 1.5 kWh.
That means, I can feed back 9.8 kWh into the grid, every day.

My total earnings/savings are then:
9.8 kWh x $0.66 = $ 6.47 per day
+ 1.5 kWh x $0.19 = $ 0.29 per day

Makes a total income of $ 6.76 per day or $ 2,467 per year.

www.solarpowermargs.com

Whats good about the Schott panels?

first of all - the fantastic look. Dark blue, light absorbant, anti-reflective, texturized tempered glass.
Cadmium-free! therefore environmentally friendly.

Schott Solar - Made in Germany

Just got my Schott Solar PV system installed by Sun Empire in Melbourne.

It's performing great. It's on a north facing roof with an angle of 30 degrees. Which is the optimal solar power angle in Melbourne, Australia.

On 13/6/ it generated around 3 kWh (kilowatt hours) of electricity. I was able to feed it back into the grid at the premium feed in tarrif of 66 cents per kWh. All the data is displayed on the KACO inverter (made in Germany). It shows me all the information I need.

In Victoria, we are rewarded with RECs (renewable energy certificates) or solar credits which makes a solar power system really affordable.
I will pay my system off within 5 years!!!