Hi Wriggle,
Having used a Green Frog Medium Lodge for 9 years, I can say that they are very good coops and never wear out! However I don’t see how they could host a door opener. The door is a heavy triangular piece of plastic suspended on its apex, which can be opened by pulling a cord that fastens in to a holding fixture. You can adjust the amount the door opens and in winter, for instance, you can open it halfway, enough for a hen to get through but giving more shelter. Door openers are usually devices that pull a rectangular door upwards vertically, aren’t they? It may be that Green Frog have now invented a unit that works with their coops, and if so I shall be interested to see the link to this.
I always left the door open, winter and summer, so the hens could go to roost and get up when they wanted, with no need to worry about them being stuck in a hot coop very early on a summers morning, or being shut out at dusk by a malfunctioning unit in winter. Hens need maximum ventilation and it really is best to provide a dry and airy coop which avoids the possibility of condensation and transmission of bronchial diseases. Of course you have to be certain that your run is foxproof, but since foxes attack at any time of day or night, you need to ensure they are safe in their run whenever they are in it, whether or not the coop is shut up for the night. I would put the money and effort into ensuring this, rather than on gadgets which may not work 100% at the very time you need them most. Or just get up early every day (5.00 a.m. in summer) and do the job yourself!