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Friday, January 23, 2015
Up to $1.2 Billion Electricity Savings for Hawaii After Oil Prices Plummet
By UHERO @ 11:02 AM :: 3278 Views :: Energy, Cost of Living

Up to $100 Million in Monthly Electricity Savings for Hawai’i After Oil Prices Plummet

by Karl Jandoc and Michael Roberts, January 20, 2015

As of January 12, the Brent Crude Price was just a shade under $47 per barrel. The last time prices were this low was nearly 5 years ago, in April, 2009. Since crude oil and its products feed into about 90% of electricity generated in Hawai’i, it is almost axiomatic to expect electricity prices to decline with oil prices.

But it takes some time for oil prices to feed into electricity prices. The price Hawaiian Electric Industries pays for oil in any month is closely connected to the average Brent crude price in the three previous months (figure 1). So, if prices stay this low, it will take up to four months before electricity prices fully reflect the drop in oil prices.

The relationship between the lagged average oil price and electricity price implies that each dollar per barrel decline in oil price should lead to a 0.22 cents/kWh decline in electricity price (figure 2). We use this relationship to project electricity prices under two assumptions about the future price of oil: (i) oil prices remain constant at the January 12 level, or (ii) oil prices follow the path predicted by the January 12 futures prices for Brent crude. (Futures prices are prices that can be locked in today for delivery up to 5 years from now).

Figure 3 shows these projections. Assuming oil prices stay at current prices, electricity prices should decline to around 18 cents/kWh by the middle of the year, and stay there. As of January 12, futures prices are above spot prices, so the second scenario has electricity prices falling to 18 cents/kWh but then gradually increasing to 23 cents/kwh thereafter.

Note that this forecast is based on the historical link between oil prices and electricity. In recent years electricity prices have drifted above this relationship, so it’s possible that prices will not drop as much as we project even if oil prices stay low.

Either way, the savings will be substantial. For a household consuming 600kWh, the 10 to 15 cent/kWh decline translates into $60 to $90 off their monthly bill. Since Hawai`i is consuming 790GWh on average, the almost $60 decline in oil prices should save the State’s economy about $104 million every month, with about three quarters of that amount going to businesses and municipalities and a quarter of it going to households.

With Hawai’i being the most oil-dependent state in the country, plus that fact that we import all of our oil, our state may benefit more than any other from the precipitous decline in oil prices.

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