Aston is a member of IoP's 'Gold' open access (OA) offsetting deal. This offsets 90% of our OA payments (for articles in IoP subscription/hybrid journals) against the cost of our subscription fees for the following year.
IoP will ask if you would like Gold OA at acceptance. If your paper is eligible, Aston encourages you to go for Gold because of the size of the available discount, but please note conditions do apply to the use of central funds to pay for the APC - http://libguides.aston.ac.uk/openaccess.