We have a remote installation. TTOG is one of the bits of kit that is at the network anchor point.
PV calcs aren’t holding up. We haven’t been able to find max power consumption data on the site or in the forum?
Whist I havent used that version (TTIG & TTKGW yes, but original TTOG no), I therefore have no direct knowledge of typical real world consumption, however, IIRC this uses POE for delivery rather than a seperate power input. From memory this is spec’ed up to 55V @ 0.6A - though in reality likely much lower as this will be for peak?!
If you care to share full details then the collective Forum brain might review and spot errors or ommisions and assist. FWIW I had one deployement years ago where I was aiming for min 3 days full operation with (typical British!) bad weather assumed in mid winter, with a hope for 4 or even 5. With another GW (using passive PoE at lower voltage levels) I was getting just 2.5-2.7 days when testing - turned out I had missed some conversion an injection losses (actually it was fact that losses were variable depending on load & supply voltage and spec I used for calcs was the ‘optimistic’ datasheet values from suppliers!) for a couple of switching convertors & injectors in the Panel to Battery to GW supply chain, moving panel up a notch (actually played safe and went 20% bigger), and switching over an an AGM battery vs original solved and I confidently saw 3.5days+ even in worse weather than assumed. Key learning - check assumptions 
(Not seen an outage for power reasons on that GW for >4.5 near 5 years now 
) 
reminder to self - next service swap out battery as like me likely getting older! 
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