FAQ¶
Abbreviations¶
The API uses the following abbreviations. Sometimes descriptions are cut off mid-word; different abbreviations may refer to the same word.
Abbreviation |
Meaning |
|---|---|
Abs / Absol |
Absolute |
Aifs |
Artificial Intelligence/Integrated Forecasting System |
AP |
Arbitrage Potential |
ARA |
Amsterdam Rotterdam Antwerpen |
Auth |
Authenticate |
C |
Cape |
C2G |
Coal to gas |
CCGT |
Combined cycle gas turbine |
CE |
Central Europe |
CFD |
Contract for difference |
CHP |
Combined heat and power |
coalgasger39 |
Coal (39% eff.) to gas (50% eff.) switching price |
Col |
Colombia |
Comp. |
Company |
(con+imb) |
Consumption + imbalance |
Constemp |
Consumption weighted temperature |
Conti |
Sum of DE, FR, AT and CH |
C+1 |
Next year |
D / Dev / Devia |
Deviation |
DA |
Day ahead |
Det |
Deterministic |
DK1a |
Denmark 1 virtual node |
EC / ECMWF |
European Center for Medium Range Forecast |
Eff. |
Effective |
El. |
Electricity |
Ens |
Ensembles |
EPS |
Ensemble Prediction System |
Excl. |
Exclusive |
FE |
Far East |
Fi |
Field |
Flex. |
Flexibility |
FLH |
Full Load Hours |
GFS |
Global Forecasting System |
GT |
Gas Turbine |
HBV |
Hydrologiska Byråns Vattenbalanseavdelning |
HFO |
Heavy Fuel Oil |
HighRes |
High Resolution |
HP |
Hydropower |
Jp/S.K |
Japan/South Korea |
KA |
Kalingrad |
kcal |
Kilocalories |
L2G |
Lignite to Gas |
LRMC |
Long Run Marginal Cost |
M+1 |
Next Month |
m-o-m |
Month on month |
NC |
Nordic Countries |
NO1a |
Norway 1 virtual node |
Norm |
Normal |
Nuc |
Nuclear |
Off |
Offshore |
On |
Onshore |
Pi |
Price-independent |
PM |
Panamax |
Poland-a |
Poland virtual node |
Powerweather |
Precipitation energy |
Q+1 |
Next Quarter |
RB |
Richards Bay |
Ro |
Roof |
RoR |
Run of River |
scen |
Scenario |
SE3LS |
Sweden 3 virtual node |
Sp / Spai |
Spain |
SRMC |
Short Run Marginal Costs |
Svk |
Svenska Kraftnät |
update fre |
Update Frequency |
WACC |
Weighed Average Cost of Capital |
Wek |
Week |
Yr |
Year |
Timezones, Times, and Periods¶
Zulu time zone (Z): Coordinated Universal Time (UTC). Denoted with a Z in the date string.
API time: Any API call is returned in Central European Time CET (UTC+1) or Central European Summer Time CEST (UTC+2). This also applies to countries in other time zones like UK and FI.
AnalyzedTime/IssuedTime: The time when a model or index is run.
UpdateTime: The time when a model result or index was available in the API.
ValidTime: Refers to the period the data applies to, e.g., a specific hour, day, week, or month.
SettlementDate: The date when a contract was settled (e.g., a Nasdaq contract will usually have five settlement dates per week, Monday–Friday).
Period and contract referrals: W0, W1, W2 mean the current week, the next week, and the week after next. The same applies for Days, Months, Quarters, and Years/Calendars (C).
Country codes: Two-digit ISO 3166 international standard is used.
Weather forecasts used in model runs¶
The API does not have a feature that tells you which forecasts are used as a basis in the different model runs. This information is provided in an accompanying comment either in the report or on www.nena.no.
Next day price forecasts are, almost without exception, based on EC00 Operational.
Short-term forecasts (FlowBased current week + three weeks) are, almost without exception, based on a combination of EC00 Op for the first days and EC00 Ens for the following days when CEST is in effect; the combination EC00 and EC12 Ens is often used when CET is in effect.
Curve contract forecasts sent out before CET 8 AM are, almost without exception, based on a combination of EC12 Op for days 1–7 and EC12 Ens for days 8–15.
Hydrology daily first run is, almost without exception, based on a combination of EC12 Op for days 1–7 and EC12 Ens for days 8–15. It is updated when EC00 Op and Ens is complete.