Reports & Materials

Technical Report

Providing Boiler Tune-Ups for Multifamily Buildings, Efficiency Improvements and Contractor Training

Fourteen multifamily boilers in need of efficiency improvements received tune-ups from one of the Minneapolis Energy Office's five multifamily program contractors.

Technical Report

Non-Heating Electric Use and Conservation Potential Among Energy Assistance Program Recipients in Minneapolis

Low income energy programs in Minneapolis have focused on gas used for space and water heating. After high electric bills were found in one program, Northern States Power Company and the City of Minneapolis undertook a joint study of electric use among Energy Assistance Program recipients.

Technical Report

Determining Applicability of Front-End Modular Boilers, Modeling Retrofit Performance Assessing Project Management

Shortest payback periods were for those buildings that had the largest boilers relative to the building heating demand. The average pre-retrofit efficiencies for the three DHW system options examined were nearly equal.

Technical Report

An Evaluation of Coordinated Energy Services, A Comprehensive Low Income Conservation Program

In 1985, six Minneapolis government and non-profit agencies formed Coordinated Energy Services (CES) at the prompting of the local gas utility.

Technical Report

Optimizing the Conversion of Heating Systems from Two Pipe Steam to Hot Water

Based on investigations in three multifamily buildings, options for reducing costs and optimizing performance of TPS conversion were considered. A variety of boiler retrofit options, zoning techniques and control strategies were studied.

Technical Report

Measured Energy Savings From Foundation Insulation in Minneapolis Single Family Homes

The Energy Office is participating in a more intensively monitored and controlled study of foundation insulation conducted by Robinson Technical Services for Oak Ridge National Laboratory.

Technical Report

Heating Cost Allocation: An Update on Activities in the U.S. and Europe

Heating cost allocation systems (HCA systems) are combinations of monitoring devices and accounting procedures designed to allow the energy costs in centrally heated multifamily buildings to be divided among the individual apartments on the basis of use.

Technical Report

An Evaluation of the Community Energy Workshop, An Energy Conservation Pilot Program for Low Income Households

In 1984, the Minneapolis Energy Office and Minnegasco launched a comprehensive energy pilot program aimed at decreasing gas use and arrearages in the low income population

Technical Report

Aircraft Noise Research Project

The pilot program described in this proposal is intended to test the feasibility, cost effectiveness and desirability of a combined approach to the problems of residential energy use and the intrusion of airplane noise on residences near the Minneapolis-St. Paul International Airport.

Technical Report

Multifamily Pilot Project Single Pipe Stream Balancing Hot Water Outdoor Reset

In the fall of 1984 the Energy Office initiated the Multi-family Pilot Project to test a delivery mechanism and to refine the technology for conservation retrofits in single pipe steam and multizone hot water apartment buildings.