Total CO2 emissions avoided over the lifetime of our installed products: 301,014 tonnes and rising.

Solar Installation Dublin – From E1 to A2

Posted on January 13, 2025
Solar Installation Dublin Case Study image showing Cyril, an Ohk energy customer, in his home in Dublin.
Location

Dublin

System size

5kWp

Solar Panels

355W

Background

Cyril Treacy lives in a 1950s two-storey semi-detached house in Dublin. A technology professional working from home, Cyril made the decision in 2020 to transform his property into a more energy-efficient, cost-effective home.

Before any improvements, Cyril’s property had a BER rating of E1, typical of many Dublin properties.

Solar Installation Dublin Video Preview Image of Cyril pointing to his Eddi hot water diverter.

The Challenge

Cyril wanted to dramatically reduce his carbon footprint while managing rising energy costs. With two vehicles and working from home, the energy consumption within the 5 occupant household was significant. He faced several key challenges:

  • Substantial electricity bills.
  • High diesel costs from running two vehicles (approx. €2,000 every year).
  • Poor energy efficiency with a low E1 BER rating.
  • The need to future-proof his home against rising energy costs.
Solar Installation Dublin Case Study Image showing Cyril about to plug his EV charger into his electric vehicle.

The Solar Solution

After extensive research, and on the recommendation of a sustainability engineer, Cyril chose to partner with Ohk energy (formerly NRG Panel).

After a comprehensive site assessment, we designed and installed a bespoke 5kWp solar system. More specifically, we installed:

  • 15 high-efficiency 355W solar panels.
  • Solis inverter.
  • Myenergi Eddi hot water diverter.
  • Myenergi Zappi for EV charging.
  • Myenergi Harvi wireless sensor.
  • Capability to export excess electricity.

The system includes smart technology that allows Cyril to monitor and control his energy usage through a mobile app.

Our grant coordinator helped secure available SEAI funding, while our technical team optimised the system design for maximum generation.

"They had it all set up installed and we're gone, I think they turned up at 9am and were gone at 2:00 p.m."
- Cyril Treacy, Dublin Solar Installation Customer
Solar Installation Dublin Solution Image showing solar panels on a roof in Dublin

The Results

The transformation of Cyril’s home has delivered impressive results:

  • “No electricity bills since summer 2022.”
  • Annual savings of €700 on electricity.
  • Additional €2,000 saved on diesel costs.
  • BER rating improved from E1 to A2.
  • 50% of EV charging now powered by solar.
  • Approx. 8 tonnes of CO2 saved annually.
  • 24 cents per kWh exported to the grid.
Solar Installation Dublin Results Image which is a close-up picture of a hand showing solar power generation results on a smartphone.
"I anticipate saving an impressive €70,000 over the 25-year lifetime of the system."
- Cyril Treacy, Dublin Solar Installation Customer

Why Ohk energy

Cyril chose to partner with Ohk energy after a sustainability engineer conducted a thorough assessment of three leading solar installation providers.

Our experience, expertise, reviews, unrivalled support and customer-first approach undoubtedly made the difference.

Cyril said: “I would highly recommend [Ohk energy] because I had a great experience with my install.”

Speaking about support, Cyril notes “they’ve been very responsive” and continues…

"It’s great to know there's someone on the end of the phone or you can email them to get support, and they're also expanding into One Stop Shop so if you want to get that done you know they'll be around for the long term and can help you make your house cosy warm and energy efficient."
- Cyril Treacy, Dublin Solar Installation Customer

Other key reasons to choose Ohk energy include:

  • Proven track record – over 15,000+ installations and happy customers.
  • Comprehensive warranties (incl. workmanship warranties).
  • Triple ISO accreditation.
  • Your complete retrofit partner.
  • SEAI registered installer.
  • Dedicated grant coordinator.
  • Unrivalled customer support.

Start saving with free green solar energy – get a free no-obligation solar quote here.