TEE (Energy Efficiency Titles) can be obtained for Photovoltaic systems - less than 20 kW and for residential, agricultural and tertiary sector installation - for which tax deduction or other types of incentives have not been requested (e.g. Conto Energia - Energy Account). As an alternative, in the residential sector, a Photovoltaic system may access the 50% tax deduction mechanism.

Energy Efficiency Titles, also called White Certificates, are titles certifying energy savings resulting from the realisation of specific energy efficiency interventions. They have been introduced with Italian Ministerial Decrees of July 20th 2004 with the purpose of promoting the realisation of energy efficiency improvement interventions.

Energy efficiency improvement is certified by GME (Energy Markets Management) issuing Energy Efficiency Titles (TEE); every TEE corresponds to 1 tep (Tonnes of oil equivalent) of energy saved; TEE are exchanged on a market regulated by GME or through bilateral negotiations.

Large company: company employs more than 250 persons, with a yearly turnover that exceeds 50m euro or a total yearly financial statement that exceeds 43m euro..

Company that uses a great amount of energy: these are companies for which, in the reference year, the following conditions are true:

a) have used at least 2.4 Gigawatthours/year of electrical power or at least 2.4 Gigawatthours/year of an energy different from electricity for their activities
b) the ratio between effective cost of the total quantity of energy used to carry out activities and the turnover value, determined according to art. 5, the result is not less than 3%