Subject matter access requests check info from CESP, ECO1, ECO2, ECO2t, ECO3 and ECO4. For another schemes that have now closed, it can be not likely that we can supply you with any information to find out whether it had been installed underneath the scheme in query, or any facts https://freeecogrants.co.uk/benefits-of-collaborating-with-an-agency-for-applying-for-eco-grants/