Kilkenny City Street Lighting shines on EPCs

We are pleased to notice that the Kilkenny City Street Lighting case study for the Streetlight-EPC Project, of which we are regional partner, has been published on the BUILD UP portal, the European portal for energy efficiency. 

Street Light EPC is an EU project aimed at promoting the use of Energy Performance Contracts or EPCs as an accessible way of refurbishing street lighting in Europe which boasts in excess of 56 million street lighting luminaires. Much of this infrastructure is old and inefficient, just as was the case with Kilkenny City street lighting recently upgraded through the project as a city partner, facilitated by regional partner CKEA. EPCs transfer some of the energy savings risk from the consumer to the supplier. A form of EPC, an Energy Performance Related Payment model which links contractor payment to energy performance, was adopted by Kilkenny County Council when upgrading the 60 to 70 year old street lighting infrastructure. Download the Kilkenny City street lighting upgrade in the case study here:[download id=”2824″]

 

Case Study: LED Lighting: Greenlane Fire Station – October 2015

Case Study: LED Lighting: Greenlane Fire Station

Background

The Greenlane Fire Station is operated by Carlow County Council Fire & Rescue Services Carlow County Council Fire & Rescue Services. The fire station availed of services through SEAI to perform an energy audit in early 2014. Through the SEAI an energy auditor was provided and a site visit was performed. The site visit generated a list of potential measures which outlined potential energy savings by adopting energy efficiency measures. Items outlined included boiler and heating controls, as well as lighting upgrades. The staff at the Fire station opted to review in greater detail the potential of lighting upgrades. Their existing lighting was T-8 lighting, which was manually controlled with wall mounted switches. Typically the hall lighting was being left on constantly, and while every effort was made by the staff at the fire station, offices were left unmanned during emergencies with the lighting left on in the absence of staff. With the assistance of Carlow Kilkenny Energy Agency, a public tender was prepared and various options for lighting improvements were tendered by varying contractors. In the end the facility had a choice of T-5 lighting or LED lighting upgrades. The pros and cons of each option were evaluated and taking into consideration operational and maintenance cost, the department opted for the LED option.  The project was installed in September 2014. The Fire & Rescue Services department through the CKEA, availed of grant aid through the Better Energy Communities 2014 program.

 

Timeframe

The initial lighting energy efficiency project was identified in January 2014. The project applied for funding under Better Energy Communities 2014 in April 2014. Approval for grant aid was received in June 2014. The project was then tendered and the removal of the existing lighting and installation of new lighting was completed in September 2014.

 

Results

The LED lighting was installed in September 2014. The LED lighting has some additional functionality with motion sensors also installed. The site opted to reduce the number of fittings in certain areas and have been pleased with the improved quality of lighting in the spaces. The expected payback, including grant aid is just over 6 years.  The following graph shows the pre and post energy consumption for the site.

GreenlaneFirestation_Trend

Greenlane Firestation Pre & Post Energy Consumption

Cost Savings

To date from January 2015-July 2015, the site has saved just over €1,100 on their energy bills as a direct result of installation of the LED lighting.

Engineer Responsible:

Elizabeth Cosgrave, Energy Engineer, Energy Efficiency

 

Key Words – Energy Efficiency, LED Lighting, Energy Savings

 

 

 

Case Study: St. Canices Hall, Kilkenny

Introduction

St. Canices Hall is locally used for such activities as boules playing, afterschools facilities, mens club and occasional functions in the community. The hall offers a valuable resource for those wishing to socialise with their community.St. Canices Hall is locally used for such activities as boules playing, afterschools facilities, mens club and occasional functions in the community. The hall offers a valuable resource for those wishing to socialise with their community.

St Canices HallEnergy Efficient Lighting

St. Canices Hall had a mixture of T-12 and T-8 flourescent lighting. It was proposed to install LED-Tubes for improved lighting in the space.

Insulation and Building Fabric upgrades

St. Canice’s opted to dry-line the main hall of the building. The rear snooker rooms were insulated used cavity wall pumped insulation. 300-mm of attic insulation was also added to the Main Hall, with roof vents. The back door was previously in bad repair and was replaced. As a result the centre now has wheelchair access which allows additional community members to use the facility.

Results

Since the upgrade the role of the centre has changed somewhat, with office space being added in one of the rear room, which has increased footfall. Based on the initial period of monitoring from December 2013-April2014, there was a 4% cost reduction and 13% usage reduction. If usage had continued as such it was expected that there would have been an overall 11% annual energy savings a result of lighting upgrades. There was a 32% reduction in oil usage at the site as a result of the insulation upgrades.

St Canices 1

Figure 1 St. Canices Hall During Upgrade

St Canices 2

Figure 2 Post Upgrade

 

St Canices 5

 

St Canices 6

 

St Canices 7

Case Study: Kilkenny City Hall, Kilkenny

Introduction

Kilkenny City Hall, KilkennyKilkenny City Hall houses Kilkenny Borough Council, part of Kilkenny Local Authorities. The building is a listed building of historical interest and is open to public viewing during normal office hours. During the 1980’s a fire destroyed the building and it was rebuilt shortly afterwards. Since then it has been predominantly cosmetic upgrades that have taken place and KBC were eager to provide some newer lighting for their staff, as well as address the comfort issue of heating. The building is also home to the Mayor of Kilkenny

Time Frame

The initial decision to proceed with energy efficiency upgrades took place in April 2013 and the projects were complete by October 2013. The works were funded by SEAI Better Energy Communities 2013.

Implemented Energy Efficiency Measures

City Hall opted to install two energy efficiency measures. The first measure they implemented was an upgrade of their lighting. Their existing lighting was T-8, magnetic ballast, mixed with some 2-D fluorescent fixtures. The existing T-8s were replaced with T-5 fluorescent tubes and new fixtures and the 2-D fixtures were replaced with LED equivalent. Occupancy sensors were placed in low use areas such as toilets and canteen areas.

City Hall also decided to upgrade their storage heating. The existing storage heating had been in place since the 1980’s and had no control and was providing low levels of heat output. The City Hall opted to install new Dimplex Storage heating with controls. The controls allow space temperature settings, time clocks as well as being intelligent.

Savings

  • Cost Savings – 36%
  • Energy Savings – 37,170-kWh (5% greater than expected)
  • Expected Energy Savings – 35,509-kWh

Engineer Responsible:

Elizabeth Cosgrave, MEng. Sc., BE MIEI

Case Study: Energy Efficient High Lift Pump

Location:

Water Treatment Site, Troyswood

Description

Troyswood Water Treatment plant has a capacity of 6,000m3 per day. There were two lift pumps – duty and standby operating on-site. In 2010, Carlow Kilkenny Energy Agency (CKEA) carried out an energy audit of the Water Treatment Plant at Troyswood. The aim of the audit was to provide recommendations to reduce the on-site energy consumption. A number of recommendations were made by CKEA. In 2010, the low lift pump was rescheduled and in April 2011 a replacement high lift pump was installed to replace the duty / standby pump operation.

In March 2012, the main centrifuge in the plant was replaced. However, the replacement model was an older model and probably less efficient than the one it replaced.

Results

Plant consumption data was analysed before and after the installation of the high lift pump in 2011.

Capture

Figure 1: Annual kWh Consumption

There was a drop in plant annual energy consumption between 2009 and 2011. During this period the low lift pump was rescheduled and the high lift pump was replaced.

Annual savings – before and after of high lift pump installation

Capture2

In 2012, the main centrifuge was replaced with an older model. Energy consumption increased for this year and therefore energy savings decreased. This may have been due to the installation of an older centrifuge which may have been less efficient.

graph

In 2012, there was a drop in energy and cost savings. This is when the older model was installed as a replacement to the centrifuge.

Case Study: Carlow County Library

Introduction

Carlow County Library is located in the heart of Carlow Town. It is a protected structure and was once a convent. Carlow Library staff have been very proactive in completing energy projects.

Time FrameCarlow County Library

The initial decision to proceed with energy efficiency upgrades took place in April 2014 and the projects were complete by September 2014. The works were funded by SEAI Better Energy Communities 2014.

Implemented Energy Efficiency Measures

Carlow Library opted to install two energy efficiency measures. The first measure they implemented was an upgrade of their lighting. Their existing lighting was T-8, magnetic ballast, mixed with some 2-D fluorescent fixtures. The existing T-8s were replaced with T-5 flourescent tubes and new fixtures and the 2-D fixtures were replaced with LED equivalent. Occupancy sensors were placed in low use areas such as toilets and canteen areas. These were only replaced in the main library section.

In 2013, Carlow Library also upgraded their gas heating system with boiler controls. They kept the existing boiler, but simply added zonal controls, thermostats and timers.

Savings

  • Cost Savings – Gas €4,700, Electricity 19% Cost Savings on Billing Period Nov-Dec2014.
  • Energy Savings – Gas 65,000-kWh (Not Adjusted), 28% Gas Savings, 35% Electricity Savings on Billing Period Nov-Dec2014

Engineer Responsible:

Elizabeth Cosgrave, MEng. Sc., BE MIEI

  • Email: Ecosgrave@ckea.ie
  • Phone: 056 779 08 56