Vic. Parsons.
Free Member
I guess the best answer is a tracking panel plus more flat on the roof but you would have to park correctly to avoid shading issues. However, I'm not convinced even the increase in winter is significant compared to likely energy consumption by the average motorhome. If a tracking panel can generate 10Ah that doesn't go far if you want to run the heating overnight and watch a bit of TV. We have 200W flat on the roof but probably need 300. I fitted a B2B for energy requirements in the cold months.
I'm not knocking the project but I can't see these being generally adopted.
The 80w tracking panel on our Hymer is supplementary to a 100w flat panel and an 80w tilting panel.
Given the limited roof space, for us it would not be possible to fit another 100w panel due to the layout of roof lights, vents and the other 2 panels. The only available space in fact is where the satallite dish is and it would be pointless to remove the Oyster just to fit a less efficient flat panel in it's place.
Like Grant, we manage our power consumption during the night and on foul weather days. Our night time consumption is pretty minimal, we have an Avtex tv using maybe 1.5ah and a complete conversion to led lighting which uses as little as .25ah. There's the fridge panel using peanuts, etc. So what we have used overnight is generaly recovered the following day. This was the case before we fitted the 80w tracking panel.
We're currently on EHU, but when we go off grid next time, I'm sure it will show much improvement
As for being generally adopted, I guess there will be other folk with similar space restrictions that may see a tracking panel as a viable option. It won't be for everyone but I would say full timers spending a lot of the winter off grid would benefit from it, especially if like us, they have the old Oyster 3 zone control unit and don't want to splash out £500 plus for Oyster's updated controller. We decided £500 was too much to pay just to watch what is 90% rubbish.
Instead, we use a few 2 Tb hard drives which gives us plenty of choice. Smart phone to keep up with current events and who needs satallite tv? ?
There will always be options, some like to use a generator, some have box trailers with extra panels fitted, some have free standing panels, some even have Oyster's own tracking panels and a few have wind turbines fitted. It's horses for courses.