MONTHLY ELECTRICITY STATISTICS, March 2007 - 28

PORTUGAL

GWh

Mar/07

Mar/06

The last 3 months

Year-to-Date

Past Year

% change

Dec/06

Jan/07

Feb/07

Jan-Mar 2007

% change

2006

+ Combustible Fuels

1 691

-29.1%

2 102

3 444

1 932

7 067

-23.5%

33 188

70.0%

+ Nuclear

0.0%

+ Hydro

1 624

24.3%

2 341

1 206

1 457

4 287

70.5%

11 262

23.7%

+ Geoth./Wind/Solar/Other

326

45.5%

286

303

314

943

45.5%

2 994

6.3%

= Indigenous Production

3 641

-7.0%

4 729

4 953

3 703

12 297

-0.9%

47 444

100.0%

+ Imports

844

0.7%

362

705

799

2 348

-9.3%

8 622

- Exports

351

3.5%

493

464

364

1 179

43.1%

3 183

= Electricity Supplied

4 134

-6.4%

4 598

5 194

4 138

13 466

-5.0%

52 883

Period

Date

- Electricity production was 3 641 GWh in March 2007.

- This was lower by 275 GWh, or 7 %, compared to March 2006.

- This was a decrease of 62 GWh, or 1.7 %, compared to the previous month.

- Combustible Fuels production showed the most significant percentage change compared to the previous month with

a decrease of 12.5 %, or 241 GWh.

- Total production for the year-to-date was 12 297 GWh. Comparing this to the same period last year shows that:

- Total production was lower by 107 GWh, or 0.9 %.

- Hydro production showed the largest percentage change by fuel type, being 70.5 % higher.

- Trade volume increased by 113 GWh, or 3.3 %.

Electricity Production Compared to Previous Year

'Year to Date' Comparison of Production by Fuel Type

COUNTRY NOTES:

Geoth./Wind/Solar/Other production is estimated by the IEA Secretariat.

Includes the Açores and Madeira.

Revision of production data for January and February 2007.

Revision of trade data for January and February 2007.

INTERNATIONAL ENERGY AGENCY