RCEP  The Royal Commission on Environmental Pollution

REC Retail Energy Code

RGMA Retail Gas Metering Arrangements

RHI Renewable Heat Incentive

RICS Royal Institute of Chartered Surveyors

RIIO Revenue Incentives Innovation Outputs

RO Renewable Obligation

ROC Renewable Obligation Certificates

RP Report Phase

RP Revenue Protection

RPU Revenue Protection Unit

RPZ Registered Power Zone

RTA Remote Transmission Agent

RTU Remote Terminal Unit