# The Environmental Authorisations (Scotland) Regulations 2018, Paragraph 4: Interpretation: general


In this schedule—
“cogeneration” means the simultaneous generation in one process of thermal energy and electrical or mechanical energy,
“cogeneration unit” means a unit that is able to operate in cogeneration mode,
“cost-benefit analysis” means a cost-benefit analysis carried out in accordance with paragraph 7 of this schedule,
“economically justifiable demand” means a demand that does not exceed the needs for heating or cooling and which would otherwise be satisfied at market conditions by energy generation processes other than cogeneration,
“electricity from cogeneration” means electricity generated in a process linked to the production of useful heat and calculated in accordance with the methodology in this schedule,
“energy” means all forms of energy products, combustible fuels, heat, renewable energy, electricity, or any other form of energy,
“energy savings” means an amount of saved energy determined by measuring and/or estimating consumption before and after implementation of an energy efficiency improvement measure, whilst ensuring normalisation for external conditions that affect energy consumption,
“micro-cogeneration unit” means a cogeneration unit with a maximum capacity below 50 kWe,
“overall efficiency” means the annual sum of electricity and mechanical energy production and useful heat output divided by the fuel input used for heat produced in a cogeneration process and gross electricity and mechanical energy production,
“power to heat ratio” means the ratio of electricity from cogeneration to useful heat when operating in full cogeneration mode using operational data of the specific unit,
“refurbishment” does not include the fitting of equipment to capture carbon dioxide produced by a combustion installation for the purposes of geological storage,
“small-scale cogeneration unit” means a cogeneration unit with installed capacity below 1 MW,
“unit” means any boilers, furnaces, turbines or compression ignition engines forming part of an installation which added together have a rated thermal input of more than 20 megawatts.

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Source: https://www.legislation.gov.uk/ssi/2018/219/schedule/25/paragraph/4 (the official version)
Page: https://openlegislation.uk/environmental-authorisations-scotland-regulations-2018/schedule-25/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.