Solar Systems

[Nix]

Hex - ok, had a quick look at your two links. My own personal opinion is that you could do much better here. Easy spending someone else's money .For double the money, you can quadruple your pv intake (important!) and double the PWM controller ampage. The panel is MCS accredited too as a bonus. If you buy from Photonic Universe and I found they're a good supplier so no worries there.

Re inverter, you certainly don't want to go higher than 500 - 600W really cos then you're looking at some hefty cable, with 500W it's already needing 6mm cable. You are aware that this is a modified inverter, you can get much cheaper versions on ebay eg here

Lightspeed - top marks for having LED lighting, not many people appreciate how hungry incandescent bulbs are, or even these "low energy" bulbs! LED lighting is the way to go for any back up system, they're a God send. Can't comment on your comms power consumption but the alarm doesn't take much, usually much less than 5 - 8W without activation but keep in mind that it's on ALL the time and soon adds up over long winter nights. Computer consumption could catch you out, even a small laptop will use 50W or so. Fridge may also be power hungry depending on wattage so keep an eye on that one too as it's on 24/7.