I think there are several aspects to it dealing specifically with the technical aspects. I think the initial implementation costs, capital costs, were somewhere around £80,000. The ongoing operating costs are roughly half of that, about £40,000 per annum.
The Government Digital Service, as I've explained, work on a range of government services and sometimes allocate some of their available time to do small changes to the e-petition sites. There are some marginal costs, staff costs, technical staff costs, included there. Those are the technical costs.
There are other aspects of costs of the system, including staff costs for the moderation of e-petitions, which is currently done by individual government departments and is spread—again marginal soft costs are spread throughout the 20 government departments, mainly in their correspondence or parliamentary units.
The House of Commons, as I've explained, is currently considering a joint system, jointly owned with the government. Part of that could be a petitions committee. I think that would be a significant additional cost to the technical costs and moderation costs I've outlined.