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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

 

 

 

Home Solar PV Installation

Steps to installing a home Solar PV lighting project

The brief for this task was simple the installation of two lanterns, with energy efficiency lighting powered by an off grid solution. The proposal was to install LED lighting linked to a Solar PV panel. The following outlines the steps taken to install the homemade solar PV lighting.

  1. The two lanterns were refurbished by cleaning and painting and installing opaque glass

Lantern

Figure 1: Lanterns re painted before glazing installed

  1. Decide on site for solar panel (site requires adequate daylight)
  2. Order list – (amazon etc., camping supplier etc.)
    1. 20W Solar PV Panel
    2. 5 m Strip of LED lighting (Warm white or cool white)
    3. 12V Batteries (Depends on the load)
    4. 12V Photocell
    5. Solar Controller (this controls the PV, Lighting and Batteries)
    6. Cable (Depends on location the lighting)
    7. Connectors
    8. IP rated storage box
    9. Stand and storage area (This can be made with wood or metal)
  3. The LED strip was wrapped around a 10mm pipe with a connector placed at the end creating the LED luminaire
  4. The 4 batteries (item c) were linked in series and connected to the Solar PV (item1) and the Solar Controller (item 5)
  5. The cables linking both lanterns to the PV panel were connected to the PV system located in the garden
  6. The LED lights were then installed in the lanterns
  7. The lanterns were then installed on the existing cast iron pillars

Lantern Installed

Figure 2: Lanterns installed on top of existing cast iron poles

The PV panel was installed on the stand this was then connected to the battery box underneath. The battery box contains the photocell on the outside with the batteries and solar controller located in the box.

PV Panel

Figure 3: PV Panel and stand – Photocell – PV Controller & Battery box

The photocell allows the lights to switch on at night. This can also be achieved using a timer or the PV as a photocell.

Night

Figure 4: Solar powered lanterns at night