IrDEA National Conference, Dublin

TALLAGHT DISTRICT HEATING

12th April 2019

POWER: Photovoltaic Cells

AIR: mechanical Ventilation

HEAT: Heat Exchange systemIntegrated with mechanical ventilation

WATER

HEATING: Solar panels

Homes will be Smart-homes with smart monitoring systems connected to broadband for

optimizing energy use & for remote control for outside the home.

A Growing Integration of Technology …

‘Record’ Actions - promote an evidence based approach to energy management & focus on streamlining energy data across sectors e.g. performance indicators, heat mapping & BER data collection

‘Reduce’ Actions – showcase SDCC experience in energy efficiency projects across building stock, facilities & operations, developing citizen involvement campaigns & integrating land use & transport planning

‘Replace’ Actions – set out both a strategic & local approach to developing renewable alternatives –LARES, site specific feasibility – aim to offer encouragement to private sector…Planning?

SEAP Actions

Range of Energy Maps

Energy Users Energy Demand

Heat Demand Density (TJ/km2) in SDCC,

anything over

250TJ/km2 considered

likely to be technically

& economically feasible, due to lack of

experience & supports

in comparison to other

EU countries

District Heating Potential

1st Phase DH Network in South Dublin

Emerging Preferred Option

• Data Centre used as main energy source

• This option does not require agreement from Belgard Gardens to

cross private land & utilises existing footpath already under SDCC

controlData Centre

Benefits of DH to Tallaght

• Low Risk - the first phase of heat network has a guaranteed customer in

South Dublin County Hall Headquarters and environs.

• Low maintenance – the customer heat exchanger is a simple unit with no

moving parts and requires very little maintenance.

• On-demand hot water – the DH system provides on demand, unlimited

hot water supply, so there is no timing, waiting or running out of hot water

Benefits of DH to Tallaght

• Low-cost heat - protecting against fuel poverty for residential

customers and increasing competitiveness of commercial

customers.

• Low carbon heat – 4 phases total of 1,500 tonnes CO2 tonnes

per annum – 400 cars off the road annually.

• Energy Efficiency – heat pump will have high efficiency – COP above 4.

• Increased use of Renewable Energy - The heat pump will

support the integration of renewables on the electricity grid.

• Protection from price volatility – the flexibility offered through

DH heat supply means a variety of heat sources can be utilised

and switched according to market prices.

• Low development costs – connecting new developments to DH saves on space.

Future Expansion – Customer Map for Phase 01/ 02

Possible Future Clients – Belgard Gardens Site

Preferred Route

• Data Centre used as

main energy source

• Preferred route

through adjoining

residential lands and

into new SDCC park.

Preferred Option

Permitted Layout

Planning Consent Process

• Data Centre granted Final Planning Permission in September 2018.

• Conditioned in the grant was the requirement to delivery waste heat to South Dublin

County Council

• South Dublin County Council granted Part 8 Planning for the Heat Exchange Centre

in December 2018.

• “Fast Track” Planning was submitted for 800 dwellings (Phase 01) of the residential

development proposed as customers for Phase 01 of the HeatNet project

Project Overview

Tallaght DH System - Ph.1

Belgard Gardens

SDCC Buildings

SDCC New Buildings

Technical University

Tallaght

South Dublin District

Heating Co.

Waste Heat Supply

Data Centre

ESCo.

Heat Supply Agreement

Local Energy Supply

Contract

Heat Supply

Contracts

Initial Heads of

Terms

Energy Supply Contract…

Further to the Tender Stage 01- Pre-Qualification submission• Four very qualified ESCos have been shortlisted for the competitive dialogue stage. • All four have submitted Outline Solution Reports and attended the first round of dialogue meetings. Each

tender had taken a slightly different approach to the project. A second round of meetings in early April with a second set of proposals from the ESCos.

• We hired a technical expert to assist and advise us during this process, who is sitting in on the dialogue meetings and is part of the evaluation team as well as providing general technical support.

• We are now focusing on the contract development in order to have a first draft prepared for early April to send to the ESCos. We invited comment from the ESCos on the template contract as developed by SEAI which was well received. This is intended to form the basis of a national DH template contract by the end of the project.

• Risk (mitigation) has been a key driver in these discussions.

Client RequirementsOverview

- Design, Build, Operate and

Maintain (7-10 year contract)

- Heat Production and Supply

- Capital Cost and Payment

Mechanism

Application to Climate Action Fund 2018

• DCCAE open call for €500m funding for low

carbon projects – DH as viable project

• SDCC is submitting a €2.5m bid application

to the new Climate Action Fund.

• SDCC project could claim up to 50% of total

project costs.

• Application deadline October 1st - reply to

proposal by early December.

• Aligned to other Project Ireland 2040 funding call

– Tallaght town centre bid – regeneration.

Next Steps

▪ Finalise Heads of Agreement with Data Centre

▪ Establish publicly-owned, not-for-profit District-heating company

▪ Finalise ESCo and Customer Contracts.

▪ Appoint Successful ESCo Contractor

▪ Monitor Planning Applications for Phase 01 customer residences.

▪ Prepare detailed scheme for SDCC lands adjoining site

▪ Facilitate ESCo commencement on site.

Thank you !

Eddie Conroy

County Architect

South Dublin County Council

econroy@sdublincoco.ie