Posts By Ronald Brakels, Author & Fact-Checker At SolarQuotes

Large 72 Cell Solar Panels Can Go On Home Roofs But They Must Be Clamped Correctly

This article is about big solar panels.  Bigger than the standard sized 60 cell panels commonly installed on residential roofs.  Those are only around 1m by 1.65m.  I’m talking about larger ones with 72 cells that are about 1m by 2m.  These larger panels are mostly used for commercial installations and solar farms, but they can be used on household roofs provided they are installed properly.

Unfortunately, this doesn’t always happen. [Read more…]

This article is about the best angle to tilt solar panels for the maximum possible energy yield over a year.  It’s a common belief that panel tilt from horizontal should equal a location’s latitude, but this is not quite correct. [Read more…]

Solar panel output reduces (slightly) as the temperature rises.

It’s an unfortunate fact the hotter it gets the worse solar panels perform.  As fossil fuel generators can suffer even greater efficiency loss due to heat, this is nothing to get all steamed up about.  But it’s still not a good thing.  [Read more…]

Solar panel manufacturers are always on the lookout for low cost improvements they can make to get an edge over the competition.  Or rather, stay in competition, as they are involved in a Red Queen Race¹ where they have to run as fast as they can just to stay where they are. [Read more…]

Optimal Orientation For Solar Panels In Australian Capitals: Directly North Isn’t Always Best

Update 2 March 2025: This was written in 2019 and insolation figures for Australian capitals have been updated since then.  Current results differ from what’s below, sometimes significantly. If you want up to date information, the best site to use I know of is PVWatts.

It is generally accepted the best direction to face solar panels to get the maximum possible output is directly north.  While this is not a bad direction, it is often possible to get a very small boost by having them face slightly away from due north.  Usually facing them a little to the east will improve output, but in some locations a small nudge to the west is best. [Read more…]

Hyundai Panels: Driving A Good Bargain?

After a 7 year absence Hyundai solar panels became available again in Australia around 10 months ago.  Michael wrote about their return last year and in this article I’ll let you know what I’ve found out about them. [Read more…]

The Desert Knowledge Australia Solar Centre Puts Panels Through Their Paces: SunPower, Winaico, Q-CELLS, & Tindo Do Well

The Desert Knowledge Australia Solar Centre isn’t just a mouthful, it’s also where they test a range of solar panels and display their performance on the internet for everyone to see. [Read more…]

ZNShine Solar Panels:  Low Cost & Tier One But No Australian Office

If you want the dirt on ZNShine panels I’ve got some bad news for you.  According to ZNShine Solar, dirt just slides right off their new graphene coated panels when it rains.  [Read more…]