Purpose of the Bill

The bill aims to address regulations concerning submerged closed loop heat exchanger systems. Specifically, it seeks to allow for certain variances from existing isolation distance requirements when it comes to wells used primarily for heating and cooling purposes.

Main Provisions

• Variance Consideration: The bill introduces the possibility of obtaining a variance on isolation distance requirements for wells that contain submerged closed loop heat exchangers. These systems are used for efficient heating and cooling by transferring heat through a closed loop of piping submerged in a well.
• Conditions for Variance: To qualify for a variance, applicants must prove that following existing isolation distance requirements would create an undue burden on the ability to design and install an effective system. The commissioner will evaluate requests based on several factors that impact design and operation, such as the necessity for adequate spacing to ensure thermal performance and the need to minimize lateral piping to reduce energy loss.

Significant Changes to Existing Law

• The bill adds a new section to Minnesota Statutes to specifically address variances for submerged closed loop heat exchanger systems.
• It also involves a modification in the statutory organization by renumbering certain sections to incorporate the new provisions.

Relevant Terms

submerged closed loop heat exchanger, variance, isolation distance, heating and cooling, energy efficiency, thermal performance, Minnesota Statutes.