Total Greenhouse Gas Footprint.
| 2007 | 2006 | |
|---|---|---|
| Total ScottishPower Greenhouse Gas (CO2) footprint | 16,911,068 | 18,485,961 |
Emissions per GWh of energy generated reduced as a result of the increasing amount of renewables in our mix and the coal conveyor collapse at Longannet by
- CO2 7.5%
- SO2 15%
- NOx 2.5%
Since 1999 our emissions per GWh of electricity generated has reduced by
- CO2 33%
- SO2 65%
- NOx 31%
Our £170 million project to fit Flue Gas Desulphurisation (FGD) at Longannet Power Station, will result in a further significant reduction in SO2 emissions from 2008
Added 37 MW of new wind energy by commissioning Wether Hill and Wolf Bog windfarms and acquiring the remaining stakes in Coal Clough and Carland Cross windfarms
We are one of the UK’s leading operators of onshore wind with 372 MW of wind energy operational (382 MW installed capacity) 666 MW consented or under construction and a further 599 MW in planning
Erected the first wind turbines at Whitelee Windfarm near Glasgow, which at 322 MW will be the largest onshore windfarm in Europe and started construction at our 30 MW Greenknowes site in Perthshire
Following a Public Inquiry, we received consent for our 213 MW Harestanes Windfarm in Dumfriesshire
Began a 19 month feasibility study into the adoption of clean coal technology at Longannet and Cockenzie power stations, comprising supercritical boilers and turbines, and carbon capture and storage (CCS). During the year we conducted some specific work on aquifers in which we were the lead partner
Continued our programme of fitting and overhauling low NOx technologies, such as Boiler Overfire Air and Low NOx Burners at our thermal plant
We were the only UK supplier to achieve our Energy Efficiency Commitment (EEC2) target for the period 2005-2008 a year early. We achieved energy savings of 107% of our three year target
Complied with legal requirements of the EU ETS by submitting 17.89 Mt of permits during 2006. The deadline for submitting information for 2007 is 30 April 2008, therefore we have no information available as yet
| Performance Targets for 2010 | Progress |
|---|---|
| To achieve 1, 000 MW of wind capacity in the UK | Exceeded in terms of consents received. Target revised upwards to at least 1,200 MW |
| Reduce CO2 emissions per GWh of energy generated by 25% from a 1999 baseline | Exceeded. CO2 ktonnes per GWh in 1999 was 0.9237 – reduced 33% |
| Reduce SO2 emissions per GWh of energy generated by 85% | Ongoing |
| Reduce NOx emissions per GWh of energy generated by 50% | Ongoing |
| Company Greenhouse Gas (CO2) Emissions | 2007 | 2006 |
|---|---|---|
| UK | ||
| From power stations (for energy generated - tonnes) | 15,837,275 | 18,017,077 |
| From transport (tonnes) | 959,310 | 19,847 |
| From internal energy and process use (tonnes) | 103,488 | 126,788 |
| Equivalent from SF6 released (tonnes) | 10,994 | 9,529 |
| Total CO2 emissions (tonnes) | 16,911,068 | 18,173,241 |
Total greenhouse gas emissions across ScottishPower reduced by 1,262,173 tonnes – just under 7% – during 2007. CO2 emissions from generation were down by 12%, reflecting lower levels of electricity output, a significant reduction in coal generation and an increased contribution from wind and hydro plant.
This year our figure for transport was significantly higher as, for the first time we have included the shipping of coal, in addition to business transport and air miles. This is to align with IBERDROLA’s reporting in this area.
Our internal energy use also reduced, mainly due to a reduction in power station works power, which is due to efficiency improvements in power station operations.
Since 1999 we have reduced CO2 emissions per GWh across our generation portfolio by 33%. This was achieved by adding more gas-fired generation and renewables to our mix and continuing to invest in efficiency improvements.
During the year we reduced our emissions per GWh of electricity generated for CO2, SO2, NOx and particulates (dust) by the following:
CO2 7.5%
SO2 15%
NOx 2.5%
Particulates (dust) 15%
These reductions were due to changes in our generation mix, when Longannet was operating on gas instead of coal. There was also an increased contribution from renewables, including wind and hydro.
ScottishPower UK - Summary Emissions Information
Fact table for UK - totals |
2007 | 2006 |
|---|---|---|
| Total electricity generated/controlled (GWh) | 25,463 | 26,896 |
CO2 |
||
| Total CO2 emissions per GWh of energy generated / controlled (ktonnes) | 0.62 | 0.67 |
| Total CO2 emissions for energy generated / controlled (ktonnes) | 15,837 | 18,017 |
SO2 |
||
| Total SO2 emissions per GWh of energy generated / controlled (tonnes) | 1.79 | 2.10 |
| Total SO2 emissions for energy generated / controlled (ktonnes) | 45.67 | 56.52 |
NOX |
||
| Total NOX emissions per GWh of energy generated / controlled (tonnes) | 1.58 | 1.62 |
| Total NOX emissions for energy generated / controlled (ktonnes) | 40.11 | 43.49 |
Particulates |
||
| Total particulate per GWh of energy generated / controlled (tonnes) | 0.09 | 0.10 |
| Total particulate for energy generated / controlled (ktonnes) | 2.323 | 2.7513 |
Heavy metals |
||
| Arsenic | 0.137 | 0.100 |
| Cadmium | 0.01 | 0.137 |
| Chromium | 0.306 | 0.487 |
| Copper | 0.431 | 0.608 |
| Lead | 0.505 | 1.304 |
| Mercury | 0.358 | 0.205 |
| Nickel | 1.079 | 1.042 |
| Selenium | 1.242 | 0.899 |
| Vanadium | 0.509 | 0.498 |
| Zinc | 1.099 | 0.542 |
| PM 10 (t) | 1,879 | 2,201 |
| Hydrocarbons (as CH4) | 112 | 116 |
| Carbon monoxide | 5,961 | 7,906 |
| NM VOCs | 151 | 180 |
| HCL | 677 | 1,449 |
| N2O | 142 | 171 |
| HF | 219 | 657 |
| Dioxin ITEQ | 7.99-E8 | 1.99-E7 |
| Dioxin WHO TEQ | 8.52-E8 | 2.32-E7 |
| Boron | 122 | 86 |
| Maganese | 0.809 | 0.512 |
| Beryllium | 0.049 | 0.232 |
Carbon Management
Since the introduction of the European Union Emissions Trading Scheme (EU ETS) in January 2005, we have integrated CO2 management into the UK energy portfolio and we manage CO2 as a commodity alongside electricity, gas and coal.
Under the scheme, an overall CO2 cap is set and carbon allowances are distributed.
Through the National Allocation Plan (NAP) ScottishPower receives a carbon allocation which may be used in respect of any plant, or traded.
Participants must either ensure emissions equal allowances, buy additional allowances to accommodate increased emissions or they can reduce emissions and sell their excess allowances.
Installations covered by the EU ETS must have their annual CO2 emissions externally verified each year, whilst complying with the detailed requirements of the monitoring and reporting plan.
Generators covered by the scheme must submit annual allowances by April each year, equal to their CO2 emissions in the previous calendar year. Phase 2 of the scheme, when free carbon allowances will be further reduced, is due to be launched in 2008.
Another market mechanism designed to reduce CO2 emissions is the Renewables Obligation, which places a requirement on suppliers to source a specific proportion of the electricity they supply from renewable sources. Compliance must be demonstrated through tradable Renewable Obligation Certificates (ROCs) from generators certified by Ofgem, or payment of a “Buyout Fine”.
Certified renewable generation sources that qualify for ROCs include wind energy, small scale hydro and biomass.
We complied with the EU ETS for the 2006 calendar year by submitting 17,891,258 EU allowances ahead of the April 2007 deadline. Our position for the 2007 calendar year will not be confirmed until 30 April 2008.
Energy Efficiency
Customer energy efficiency programmes are a key part of the Government’s strategy to reduce CO2 emissions and tackle climate change.
Under the second phase of the Energy Efficiency Commitment (EEC2), which runs from 2005-2008 we met our targets a year early – the only supplier to do so. This was possibly due to the early start we made with a carryover from EEC1. A significant proportion of the energy efficiency measures we installed in the second year of EEC2 was in the homes of Priority Group customers, including the elderly and those on low incomes. Between 2005 and 2007 we invested £150 million in our customer energy efficiency programme. In 2007, the following energy savings measures were delivered:
Energy saving measure |
2007 |
Total 2005 to 2007 |
|---|---|---|
| Cavity walls insulated | 52,942 | 270,000 |
| Lofts insulated | 31,663 | 150,000 |
| A-rated boilers installed | 13,162 | Over 40,000 |
| Energy savings light bulbs distributed | 2.4 million | Over 5 million |
Over the period of EEC2 we achieved energy savings of 107% of our three year target.
The majority of our energy saving measures were delivered through strategic alliances with social housing providers, including local authorities and housing associations. We have more than a hundred such partnerships across the UK. In addition, we are the energy partners in four Warm Zones in Newcastle, Gateshead, Kirklees and North Stafford in England and Community Energy Partnerships in North and South Lanarkshire.
Carbon Emissions Reduction Target (CERT)
From April 2008 a new customer energy efficiency programme – the Carbon Emissions Reduction Target (CERT) will replace EEC. Under CERT, suppliers are obliged to deliver CO2 savings of 154 million tonnes from 2008 to 2011, costing £2.75 billion.
Forty percent of the programme will be targeted at priority group customers, such as people on low incomes – and anyone over the age of 70, regardless of income.
CERT can be used as a vehicle to deploy microgeneration in the home, such as solar hot water systems. It can also be used to support trials of new initiatives, such as encouraging behavioural change, where carbon savings cannot yet be quantified.
Smart Meters
At present three UK suppliers, including ScottishPower, are working on energy demand research projects.
This involves researching customers’ home energy use habits and determining which measures are effective in encouraging them to reduce their energy use.
The project was launched in April 2007 and runs until February 2010 when a report will be presented to The Department for Business, Enterprise and Regulatory Reform and Ofgem.
The research, involving a representative sample of around 2,600 customers, is part-funded by the Government. It will look at the influence of enhanced information on customers’ energy use habits.
Interventions will include:
- Providing better information to encourage people to save energy, including historical comparisons of their energy use
- Providing a real-time visual display unit, and
- The installation of smart meters
Smart meters allow two-way communication between us and our customers. Once smart meters have been installed in the homes of our sample group, we will look at new tariff arrangements for these customers. For example, offering lower rates for customers who reduce energy usage at ‘peak’ times.
The results of the trials will provide invaluable evidence to support the future rollout of displays and smart meters, across our customer base, providing the potential to achieve significant reductions in energy demand and carbon emissions.
We believe Smart meters should work in a similar way to the traditional metering market. They would be installed by a third party who would charge the supplier for their use, meaning customers are not directly charged.
Green Energy
We continue to offer a range of green energy options in both the domestic and industrial and commercial sectors.
For domestic customers we offer two green energy products – Green Energy H2O, where our customers’ energy use is matched with a supply of hydro power into the grid – and Green Energy Fund, which supports small scale renewable energy projects in UK communities. We also have an online green option – Online Energy Saver 4 Green Fund.
The Green Energy Fund enables customers to donate the dual fuel discount they would get for taking both electricity and gas into a Green Energy Trust, which is also supported by the company.
The Green Energy Trust is administered by an independent Board of Trustees which meets three times per year to award grants to small-scale renewable energy projects, including microrenewables such as mini wind turbines and solar panels in schools, biomass fuelled Combined Heat and Power schemes and ground source heat pumps.
During 2007 the Green Energy Trust awarded a further £200,963 to 16 small renewable energy projects. At December 2007 the Trust had awarded a total of £926,860 to 91 community projects. See our Green Energy case study for more information.
Following initial scoping work in 2007 we have now commissioned the Edinburgh Centre for Carbon Management to evaluate our Green Energy Fund product, to quantify the actual CO2 savings achieved. This will enable us to provide transparency to help customers make an informed choice.
