It has always been a dream to power everything in my shack with sunlight. Unfortenately solar panels and batteries are too expensive at the moment and you would only do such a thing when no other power source is available, like in the new shack from fellow blogger VK2TPM Peter. A good inspirator is VK5SW Rob, he has his solar powered station in the Australian bushbush. But for the average hobby radioamateur his equipment is too expensive I think, look at the size of the batteries! Those are very expensive for shure. In a previous post I wrote I bought a cheap 1,8W solar panel. It’s not sufficient to charge the 7Ah battery actually, it’s just topping it when you’re not using it. If I would have my antenna tuner connected all the time the battery will be below the 12,4V that it needs as minimum supply within 2 hours or so. I measured the current that the tuner takes when just connected and it’s 430mA. That would be P=U*I > 12,4*0,43=5,3W you see that I need a panel that is much larger. As I want to supply the W5OLF TX as well with solar in the future I even need some more power and a bigger battery. I found a nice package including regulator at this german shop, it’s reasonable priced and delivers 30W at a sunny day. Together with a 45Ah car battery I think that will do. They also got all kind of other handy things to connect to your solar installation. Like a fluorescent lamps – potential transformer, a idea for the new shack, imagine free solar powered light in your shack. I like that idea. Unfortenately if you look at the costs of all these nice gadgets you better switch on your light from the mains, till now it will save you money. I think to power my future shack with sunlight the solarpanels need to be a lot cheaper.