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Promising future technological solutions linked to shallow geothermal

energy use

Javier F. Urchueguía (Universidad Politécnica de Valencia) –

Geothermal Panel Chairman - Spain

Promising future technological solutions linked to shallow geothermal energy use

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• A review on the Geothermal Implementation

Roadmap and its accomplishments: [2009...2018]

• The future... new R&D strategy and roadmap in the

framework of a renewed RHC platform

• Some highlights about the New Strategic and

Innovation Research Agenda

Overview

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Main Deliverables of RHC-ETP and Geothermal Panel

(First ToR)

VisionStrategic Research

Agenda

Common

Roadmap

2009 2010 2011 2012 2013 2014

Vision Strategic Research AgendaImplement /

Roadmap

RH

C-E

TP

Geoth

erm

al P

anel

FP7Horizon

2020R&

D

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Main Deliverables of RHC-ETIP and GT Panel (Second

ToR)

Implementation

2014 2015 2016 2017 2018 2019

RH

C &

HC

Horizon 2020R&

D

New

ToREnd

ToR

SET Plan activity

Polic

y

Revision of implementation

WP 2014-16 WP 2016–18 WP 2018-20

Revision of implementation

Integrated SET plan

Declaration of Intents & targets

TemporaryWorking Group

Deep Geothermal

TemporaryWorking Groupon EE, Industry,

SNET

Investment in geothermal

RD&I in Europe

Implementation plan 2014 - 2020

9

Geothermal technology roadmap

Shallow geothermal technologies Deep geothermal technologies

Ground Coupling Technologies

Resources, new systems and integration

Deep Geothermal Resources

Deep Geothermal Production

Deep Geothermal Drilling

EGS Flagship Program

KPIs originally described in the Roadmap had to be

reviewed and made more concrete, testable and

quantifiable … assumptions were needed!

It was difficult to trace the link between

objectives/accomplishments in the monitored projects and

the KPIs

10

KPIs on Shallow geothermal:

Costs reduction

Version 2018 Value of the KPI and general statements

Decrease the energy input for operating the geothermal heat pump system by 10% in 2020 and 25% in 2030

(from 2014 value: 44.6 MWh electric, for a geothermal system capacity of 50 kWth in a new building, supplying heating at T = 35°C during 2200 h per year and cooling at T = 7°C during 1200 h, in western Europe climate conditions, use a SPFheating of 4)

• A lot of expectations from ongoing RD&I

• Decreasing by 5% to 10% in 2018 in mature markets, more in juvenile markets

• Value of 40.1 - 42.4 MWh electric

Reduce costs for operating the geothermal heat pump system, leading up to 20% costs reduction of the O&M in 2020, and 30 % in 2030

(from 2014 value: 9430 € per year, for a geothermal system capacity of 50 kWth in a new building, supplying heating at T = 35°C during 2200 h per year and cooling at T = 7°C during 1200 h, in western Europe climate conditions), assumed with stable energy prices (or statistically levelled).

• Annual maintenance, control costs have decreased

• Performance improved so less electricity input

• Assume a 5% costs reduction of the O&M between

2014 & 2018

• This should lead up to 10% costs reduction of the

O&M in 2020, due to many R&D actions.

• But cost in € is stable as electricity price rose.

KPIs on Shallow geothermal:

Costs reduction

Reduce investment costs for a geothermal heat pump system, leading up to 20% costs reduction in 2020, and 30 % in 2030

(from 2014 value: 68’000 €, i.e. 1360 €/kW, for a geothermal system capacity of 50 kWth in a new building, supplying heating at T = 35°C during 2200 h per year and cooling at T = 7°C during 1200 h, in western Europe climate conditions)

• Assume a 5-10% costs reduction of the

investment costs between 2014 & 2018

• Drilling: reduction esp. in juvenile

markets

• Materials: reduction of 5-10%

• Installation: reduction of ca 10%

• HP: reduction in mature markets

• First assumption of a 10 to 15% costsreduction of the investment between2014 & 2018 for large projects, inparticular in juvenile markets.

Improve efficiency SPFheating

Increase value of Seasonal Performance Factor in the order of 4.5 for 2020 and 5 for 2030

(from 2014 value: SPFheating average of 4, for a geothermal system capacity of up to 50 kWth, supplying heating and DHW at T = 35°C, in western Europe climate conditions)

• Average European SPF is in the range 4 to 4.5 in 2018 for these systems (50 kWth)

• This Performance Indicator has been improved by more than 40% over the last ten years, as shown by field tests and monitoring (cf. SEPEMO, Fraunhofer field study).

Increase value of Seasonal Performance Factor in the order of 5 for 2020 and 5.5 for 2025

(from 2014 value: SPFheating average of 4.5, for a geothermal system capacity of 50-100 kWth, supplying heating at T = 35°C, in western Europe climate conditions)

• Average European SPF is in the range 4.5 to 5 in 2018 for these systems (50-100 kWth)

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Thank you for your attention !