Climate change and energy efficiency

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2015 milestones
 
  • Support for the We Mean Business initiative against climate change. 
  • Support for Grupo Español para el Crecimiento Verde (Spanish Group for Green Growth). 
  • Setting an internal carbon price. 
  • Implementation of the 2015-2016 Energy Efficiency Plan, comprising various measures which, throughout 2015, enabled us to reduce own consumption of natural gas by 155 GWh, avoid power consumption of 0.05 GWh and generate 3 GWh of electricity from clean sources, thereby preventing over 42,000 t CO2e emissions. 
Lines of progress 2016
 
  • Development of corporate directives regarding climate change and energy efficiency. 
  • Energy Efficiency Programme 2016. 
  • Undertaking of studies and pilot projects within the framework of the CORE LNGas Hive project for the development of infrastructures in Spain and Portugal that support the use of Liquefied Natural Gas (LNG) as an alternative fuel in sea transport (bunkering) coordinated by Enagás. 
  • Voluntary carbon offsetting.

Reduction in emissions compared to 2014 (scopes 1 and 2): 47%.

305,172 tCO2e, carbon footprint (scopes 1 and 2).

272,728 tCO2e, emissions (scope 1).

32,444 tCO2e, emissions (scope 2).

Reduction in own consumption of natural gas: 165 GWh.

CDP score: 99/B.

118 suppliers have taken part in CDP Supply Chain.

Climate change management model
 

Our approach to climate change management is based on public commitment, emission reduction measures and the reporting of our performance and results, as well as the extending of our commitment to our supply chain:
 

Commitment: Company objective to reduce emissions linked to variable remuneration. Reporting: Carbon footprint certified in accordance with ISO 14064 included in the company's key reports. Management: 2015-2017 Energy Efficiency Plan. Programme to reduce emissions arising from network losses. Supply Chain: Participation in CDP Supply Chain to achieve sustainable management of the supply chain. Results: More than 42,000 tCO2e prevented through energy efficiency measures in 2015.
 

Enagás is invested in the use of gas as the least polluting fossil fuel and, therefore, key to the power generation mix for meeting emission reduction targets and allowing the development of more efficient renewable energies; as well as replacing other fossil fuels as we move towards more sustainable mobility in sea, rail and road transport.

Commitment to combating climate change
 

Every year, Enagás reports on its performance, risks and opportunities in the area of climate change through its public response to the CDP questionnaire, obtaining a score of 99B in 2015.

Through a working group, each month the company monitors its direct emissions as well as the emission reduction targets at each of its facilities. Furthermore, each year the company verifies its carbon footprint in accordance with the ISO 14064 standard, with a reasonable level of assurance.

For the last 5 years, Enagás has set annual energy intensity targets at each of its facilities, which it also links to employees' variable remuneration.

In addition, the company has set long-terms goals, such as cutting emissions by 30% over the 2016-2018 period compared to 2013-2015, which has been included in the long-term variable remuneration proposal, or own generation of 35% of electrical power consumed from clean sources in 2020.

At the same time, we have taken on a public commitment by joining the “WE MEAN BUSINESS” initiative to leverage the opportunities for economic growth, employment and prosperity offered by the transition towards a low-carbon economy.

Our commitments include:

  • Reporting information on climate change through our carbon footprint verified in accordance with the ISO 14064 standard, the Annual Report and the response to CDP. What is more, we incorporate specific information on climate change in our communications to investors. 
  • Setting a carbon price for the 2015-2020 period, in order to fully incorporate environmental externalities into our business and investment decisions.
  • The promotion of policies towards a low-carbon economy by taking part in different platforms, associations or forums such as the International Gas Union, Marcogaz, the Iberian Association For Gas-Powered Mobility (GASNAM), the Spanish CO2 Platform or the Spanish Group for Green Growth (GECV), in order to promote policies that favour the replacing of highly polluting fossil fuels by natural gas for the transformation towards a low-carbon economy. Enagás also takes part in international forums such as the International Energy Forum, Atlantic Energy Forum, FUNSEAM (Foundation for Energy and Environmental Sustainability), Oxford Institute for Energy Studies, etc., and is a founding member of GIE (Gas Infrastructure Europe) and ENTSO-G (European Network of TSOs - Gas) within the framework of the European Union, in order to strengthen this position.

Our approach to climate change management is based on public commitment, emission reduction measures and the reporting of our performance and results, as well as the extending of our commitment to our supply chain: 

Enagás is invested in the use of gas as the least polluting fossil fuel and, therefore, key to the power generation mix for meeting emission reduction targets and allowing the development of more efficient renewable energies; as well as replacing other fossil fuels as we move towards more sustainable mobility in sea, rail and road transport.

CO2 emissions reductions: Energy efficiency
 

In 2015, we cut our carbon footprint by over 47% (scopes 1 and 2) compared to the previous year. 

This significant reduction is mainly due to the reduction in own consumption of natural gas at the regasification plants:

  • Various measures have been set in motion to decrease the number of days on which the plants operate below the technical minimum (18% less) as well as the amount of gas flared during those days (94% improvement in own consumption of gas compared to days at technical minimum). 
  • We have reduced our activity in relation to methane tanker loading at regasification plants (78% less) and set in motion various measures to minimise the shrinkage associated therewith (95% improvement in shrinkage with respect to the volume of gas loaded onto tankers).

Thus, in 2015, there was a 94% reduction in emissions from flaring (technical minimum and tanker loading). 

Furthermore, thanks to a heightened awareness among infrastructure personnel as regards the greater global warming potential of CH4 compared to CO2, the amount of vented gas has been reduced, leading to a 40% drop in such emissions. In particular, emissions from venting in special operations on the pipeline network have been reduced by 87% compared to 2014.

Lastly, compressor stations, which represent 46% of all carbon footprint emissions, have reduced their emissions by 15% compared to 2014, thanks to the use of flexibility mechanisms available to the Technical System Manager. Such mechanisms, relative to operational gas reserve management, have led to greater input/output balance of the various physical areas and, therefore, less reliance on gas compression.

In this regard, by once again applying the most efficient alternatives for combined compressor station operation, an optimised use of pipeline control valves and node alignment, we managed to reduce own consumption in turbocompressors, which in turn reduced the corresponding emissions by 21%.

At Enagás, energy efficiency has a key role in emissions reduction and, in this regard, we have made considerable efforts.

The Energy Efficiency measures implemented in 2015 within the framework of the Enagás Energy Efficiency Plan were mainly focused on reducing own consumption of natural gas at regasification plants through technical and operational upgrades that have enabled us to minimise the energy impact of operations below the technical minimum. We also took measures that allowed us to reduce mains electricity consumption. We thus prevented emissions totalling 42,000 tCO2e and saved 155 GWh of natural gas.
 





Scope 1 and 2 emissions
 

Scope 1 and 2 emissions. In 2013: 479,175 of Scope 1; 36,079 of Scope 2 and 515,254 of Total (Scopes 1 and 2). In 2014: 537,092 of Scope 1; 33,941 of Scope 2 and 571,033 of Total (Scopes 1 and 2). In 2015: 272,728 of Scope 1; 32,444 of Scope 2 and 305,172 of Total (Scopes 1 and 2).





Emissions by type of greenhouse gas (tCO2e / year)
 

Emissions by type of greenhouse gas. 208,021 of CO2; 96,409 of CH4; 92 of N2O and 650 of Refrigerant gases.
 





Intensity of emissions by net turnover (tCO2e / €Mn.year)
 

Intensity of emissions by net turnover (tCO2e/€Mn.year): 1,278 in 2013; 1,405 in 2014 and 739 in 2015.
 

Intensity of emissions per employee (tCO2e / employee.year)

 


Intensity of emissions per employee (tCO2e/employee.year): 461 in 2013, 473 in 2014 and 228 in 2015.

 

Intensity of emissions by total gas output (tCO2e / GWh.year)

 


Intensity of emissions by total gas output (tCO2e/GWh.year). 1.28 in 2013, 1.44 in 2014 and 0.83 in 2015.
 

Energy efficiency initiatives implemented in 2015

The 2015-2017 Energy Efficiency Plan sets out three main spheres of action: the reduction of own gas consumption at the company's facilities, the reduction of electricity consumption, and the generation of electricity from clean sources, such as using residual energy from our activities. 

Within the 2015 Programme, we carried out various energy efficiency measures at an investment of €8.7Mn. 

The energy efficiency measures implemented in 2015, along with the corresponding savings, are set out below:
 

Actions aimed at reducing GHG emissionsEnergy savings achieved in 2015Emission reductions achieved in 2015
Use of nitrogen instead of natural gas in the flare molecular seal at the Cartagena Plant.1.58 GWh319 tCO2e
Installation of a heat exchanger using seawater to cool boil-off gas before it enters the reliquifier at the Cartagena Plant, thereby increasing gas recovery capacity, which in turn avoids flaring unrecovered gas.58.13 GWh11,730 tCO2e
Redirecting of a methane tanker from the Barcelona to the Cartagena regasification plant, thus ensuring a minimum activity at the plant, otherwise losses of natural gas would occur (via flaring) due to operating below the established technical minimum. (EOC in March)69.00 GWh13,831 tCO2e
Redirecting of a methane tanker from the Barcelona to the Cartagena regasification plant, thus ensuring a minimum activity at the plant, otherwise losses of natural gas would occur (via flaring) due to operating below the established technical minimum. (EOC in September)19.71 GWh3,977 tCO2e
Reduction of fugitive emissions by repairing components in which leaks had been detected at various Enagás facilities including plants, underground storage facilities, compressor stations, RMSs, and positions on the pipeline network.7.01 GWh11,858 tCO2e
Recovery of the boil-off gas generated at the Cartagena Plant by using it as fuel in the submerged combustion evaporators (SCE), thereby avoiding the use of seawater evaporators, which consume electricity due to the need to use a seawater intake pump and a return pump.0.05 GWh13 tCO2e
Installation of a power generator (turboexpander) at the Barcelona Plant that makes use of the potential energy from expanding natural gas and reduces the consumption of mains electricity by using our own source of clean electrical power.3.02 GWh725 tCO2e
Total 42,453 tCO2e

Energy consumption and intensity

Most of Enagás' greenhouse gas emissions originate from natural gas consumption.
 

EMISSIONS BY SOURCE TYPE 2015 (tCO2e) (SCOPES 1 AND 2)
Emissions by source type 2015 (tCO2e) (Scopes 1 and 2). Consumption of natural gas in turbocompressors: 43%. Fugitive methane emissions: 22%. Electricity consumption: 11%. Natural gas vented: 9 %. Consumption of natural gas in process boilers: 8%. Natural gas flaring: 4%. Other: 3%.
 

Energy consumption
(GWh / year)

 



Energy consumption. Natural Gas: 1,827.39 in 2013; 2,218.35 in 2014 and 876.98 in 2015. Gasoil: 6.75 in 2013; 7.07 in 2014 and 7.34 in 2015. Petrol: 1.40 in 2013; 1.21 in 2014 and 1.00 in 2015. Electricity consumed from grid: 148.79 in 2013; 141.41 in 2014 and 144.14 in 2015.

Energy intensity
(MWh natural gas consumed / GWh domestic demand)

 


Energy intensity. 5.54 in 2013. 5.59 in 2014 and 2.78 in 2015.

In 2015, Enagás produced 11.9 GWh of electricity through the generation equipment installed at the Almendralejo CS and the Huelva Plant, the Stirling micro-cogeneration system in Bergara, the two wind turbines, the solar panels, and the turboexpander commissioned in September at the Barcelona Plant. Investment in own generation in 2015 amounted to €4.4Mn.
 

Scope 3 emissions

In 2015, and for the second year running, we took part in the CDP Supply Chain initiative, inviting 118 suppliers to report on their climate change targets and performance. These suppliers corresponded to products/services with a greater impact on emissions and represented 28% of turnover in 2015.

As in the previous year, the information obtained was included in our inventory of scope 3 emissions. In 2015, we made advances in reporting the emissions of our investee companies in this inventory, thereby complying with the Investments category corresponding to the GHG Protocol.
 

Scope 3 
Acquisition of goods and servicesEmissions derived from the extraction, fabrication and transport of acquired goods and services.(1)1,526 tCO2e
Emissions arising from the use of paper.29 tCO2e
Capital GoodsEmissions derived from the extraction, fabrication and transport of equipment acquired for production.860 tCO2e
Activities related to energy production (not included in scopes 1 or 2)Emissions due to the extraction, production and transport of fuel consumed directly Enagás: natural gas, petrol and gasoil, and fuels used to generate electricity consumed by Enagás.16 tCO2e
Upstream transmission and distributionEmissions generated by the consumption of fuels derived from helicopter and ship transport services (from the plant to the platform of the Gaviota underground storage facility). 1,335 tCO2e
Waste generated during operationEmissions derived from the transport, management and treatment of waste generated at Enagás facilities.555 tCO2e
Work-related journeysEmissions derived from work-related journeys by Enagás employees.2,956 tCO2e
Journeys to and from work by employeesEmissions derived from journeys to and from work by Enagás employees.12,177 tCO2e
InvestmentsEmissions, excluded scopes 1 & 2, from those joint ventures not fully controlled by Enagás, with not a financial control. In this case, the scope only includes emissions verified under EU ETS of Spanish joint ventures ((Bahía de Bizkaia Gas, S.L (50%) and Sagunto, S.A. Regasification Plant (Saggas) (30%)).1,893 tCO2e
Scope 3 total 21,347 tCO2e

(1) Information from the CDP Supply Chain questionnaire.
 

EMISSION RIGHTS TRADING STRATEGY

47% of emissions included in carbon footprint scopes 1 and 2 are included in the EU emissions trading system (EU ETS). Enagás' new emission rights trading strategy, approved by the Board of Directors, was prepared while taking into account the following: 

  • In early 2015, Enagás had a reserve of over 700,000 emission rights which will cover the emissions generated through to approximately 2018.
  • We have identified the need to buy approximately 420,000 rights up to 2020.
Reduction of fugitive methane emissions
 

Fugitive emissions represent 22% of Enagás' carbon footprint emissions (scopes 1 and 2).

The fugitive emissions reduction programme that seeks to detect and repair losses of natural gas enabled us to identify 739 leaks in components in 2015, decreasing to 527 following parallel repairs, thereby preventing 85.4 tonnes of yearly methane emissions.

Enagás will continue working to reduce methane emissions by analysing and evaluating various initiatives, such as the inclusion thereof in maintenance schedules.
 

DETECTION OF FUGITIVE EMISSIONS:
WINNING INITIATIVE AT INGENIA BUSINESS 2015

Within the framework of the Enagás Open Innovation and Corporate Entrepreneurship Programme (see the chapter on 'Collaboration and creation of value with our stakeholders'), the winning initiative at Ingenia Business (generation of business ideas by Enagás employees) was related to the reduction of methane emissions.

Specifically, the project developed a technology for detecting fire and flames, that is, a hot spot, and detecting gas with the same degree of precision, that is, early detection of natural gas into the atmosphere and cold spots (LNG), known as a “multi-detection system”.

Promoting the use of natural gas
 

Enagás is invested in the use of gas as the least polluting fossil fuel and, therefore, key to the power generation mix for meeting emission reduction targets and allowing the development of more efficient renewable energies; as well as replacing other fossil fuels as we move towards more sustainable mobility in sea, rail and road transport.

Among the more notable initiatives, Enagás is coordinating the CORE LNGas Hive project for the development of infrastructures in Spain and Portugal that support the use of Liquefied Natural Gas (LNG) as an alternative fuel in sea (bunkering), rail and road transport. This initiative enjoyed collaboration from universities, port authorities, energy companies, etc. and is aligned with the implementation of Directive 2014/94 on the development of alternative fuels and Directive 2012/33 on reducing the sulphur content of fuel for maritime use.

In addition, the company is promoting the use of liquefied natural gas an alternative to petroleum for heavy vehicles.

Enagás is also promoting the use of biogas both in Spain and beyond. This fuel is complementary to natural gas in certain applications, such as industrial usage and the transport sector. Connecting biogas supply points to the gas network is both environmentally and economically beneficial.

Enagás, through its stake in the Swedish TSO Swedegas, promotes the development of biogas in Sweden, which is a world leader in biogas production. Through Swedegas, Enagás is working with various biogas producers to connect their facilities to the gas transmission network, thereby providing them with an environmentally optimal way to transmit the product to the end user.