The National Offender Management Service (NOMS) does not stipulate energy efficiency standards for circulator pumps. However, in existing Prison Service buildings, it is recommended that variable speed pump motors are fitted where it is practical to do so and where savings can be made within a suitable payback period.
NOMS standard for new build and refurbishment projects is that:
Accommodation will deliver optimum energy efficient solutions to achieve a low energy building that is significantly lower than typical development.
New builds must meet current Buildings Regulations Part L (2000) which include energy conservation requirements.