Enehub Indices and Other Data
With Japan’s power system shifting toward a market-based model, staying on top of power prices and other key metrics is crucial, as these will increasingly shape project profitability.
Scroll down to explore Enehub Indices, our regularly updated benchmarks offering a snapshot of the market, along with other datasets available on our platform.
Wholesale market
Imbalance
FIT/FIP
Wholesale market
Baseload prices
Averages calculated over the delivery periods used by EEX and TOCOM futures, mirroring the prices underlying those contracts.
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*Peakload prices
Peak-time averages calculated over the delivery periods used by EEX and TOCOM futures, mirroring the prices underlying those contracts.
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Capture prices
Generation-weighted averages of day-ahead prices, using national and area-specific solar and wind output profiles as weights.
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Load-weighted average prices
Demand-weighted averages of day-ahead prices, derived from national and area-specific demand profiles used as weights.
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Area price spreads
Average differences in day-ahead prices between regions, reflecting the extent and persistence of area-to-area price divergence.
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Capture rates
Shares of baseload (simple average) day-ahead prices captured by solar and wind assets, based on national and area-specific output profiles.
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Floor price risk
Share of 30-minute periods (baseload) or of demand, solar, or wind generation when day-ahead power clears at the ¥0.01/kWh floor.
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Intraday-to-Day-Ahead Ratio
Ratio of volume traded in the intraday market to the volume traded in the day ahead market. (Can also do vs. supply/futures volume.)
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Bid-to-Ask Ratios
Ratio of buy bids to sell bids showing the risk of not being able to sell or buy power in the day ahead market.
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Valueless generation risk
Share of total potential generation of a specific technology curtailed or generated when day-ahead power clears at the ¥0.01/kWh floor.
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Balancing market
Prices by area
Volume-weighted average prices contracted in the balancing market by area.
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Prices by technology
Volume-weighted average prices contracted in the balancing market by technology.
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Subscription rates
Balancing market bid volumes as shares of target procurement volumes.
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Fulfillment rates
Balancing market cleared volumes as shares of target procurement volumes.
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Other market-related
FIT/FIP
Zero-premium FIP levels
Highest strike prices by generation type at which projects receive no FIP premium, except for the balancing subsidy, for a given month.
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*FIP premiums
Adjusted FIP premium by strike price, generation type, and balancing cost assumption, that a FIP project would be paid for its non-floor-price-time-slot generation.
*FIP/FIT revenue ratios
Shares of FIT revenues captured by same projects under FIP with the same strike price selling power in the day-ahead market and NFCs via auctions, without batteries.
*FIP revenues
Total revenue that a FIP project with a specific strike price would make if selling power in the day-ahead market and NFCs via auctions.
BESS
Battery spreads
Average spreads between high- and low-priced day-ahead periods, highlighting the margins available for battery storage arbitrage.
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Battery cycles
Monthly average daily full-cycle equivalents for selected grid-scale battery storage assets, showing how intensively each system is operated.
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Power supply and demand
Power demand by area
National, mainland, and each TSO area’s total power demand.
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Power supply by technology
National, mainland, and each TSO area’s total supply by power source type.
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Technology shares of demand
Share of overall demand supplied by a specific generation technology.
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Curtailment rates
Share of total potential generation of a specific technology curtailed.
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