Keeping Electricity Competitive

Alberta’s Market Surveillance Administrator, Martin Merritt is head of an independent agency developed to ensure that the province’s electric markets operate in a fair, efficient and competitive fashion. The MSA also monitors the retail natural gas market. This article was carried in The Calgary Herald September 12, 2008.

By Martin Merritt A few weeks ago, The Calgary Herald carried an item reporting that Alberta had just set a new summer record for power consumption, eclipsing last summer’s record by 2.3 per cent. The good news is that we had plenty of supply to meet this record. The concern is that as we continue to post records we may not have the transmission to ensure that the lowest cost supplies reach us as consumers.

As a consumer, I get the best deal for myself if I can buy things – cars, groceries, gasoline and other forms of energy – freely on the open market. In a market economy, our choices as consumers give a great incentive for sellers to keep their costs low. If we were constrained to buy from only a few sellers, we would have less choice and prices would likely be higher.

I also wear another hat. As Alberta’s Market Surveillance Administrator – the guy responsible for making sure our electricity market functions competitively – I understand that constrained markets can prevent low-cost sellers from prevailing in the marketplace. In the case of electrical power, we need more than the supply necessary to meet Alberta’s needs. We need a system that allows electricity to flow freely around the province. That requires adequate transmission capacity.

Alberta’s electricity market provides consumers with secure supplies and competitive pricing, but the transmission system is becoming undersized for the job in some places. Whether for home appliances or running business operations, consumers will only get the best deal on power when the transmission system can transport electricity from (almost) any generator in Alberta to (almost) any consumer in Alberta. This is why I am concerned about the tremendous hurdles facing new transmission projects these days.

Electricity generators are like stores, and the transmission system is like the network of roads that enables us to get to and from the supermarket. If major roadways became so congested that we had to buy all of our groceries from the local convenience store we all know what would happen to our family’s food bill.

This isn’t just theory. It’s already affecting us. Today we are moving a lot more electricity through the transmission system than we did when it went through its last major upgrade over 20 years ago. In constrained areas of our grid, this has dramatically pushed up the energy losses from transportation.

For example, between the Lake Wabamun area where about 40% of Alberta’s generation is located and the Calgary area, losses average over 10%. According to the Alberta Electric System Operator, additional transmission capacity would save enough energy to power half the City of Red Deer. Losses on that scale are pure economic and environmental waste. More recently, in the five years from 2002-2007, Albertans paid almost $300 million in subsidies to electricity generators for helping us get around our transmission bottlenecks. The subsidization rate is presently $40-$50 million annually.

Some advocate expanding this practice – paying generators to locate in sub-optimal places in order to avoid investing in transmission infrastructure that the province badly needs. This amounts to renting band-aids rather than fixing the root problem. This band-aid approach might work well for the band-aid vendors but it’s certainly not in the best interest of Albertans if we expect to continue to realize the larger benefits of a broadly competitive electricity market.

In Alberta today, the wholesale electricity market is worth about $5 billion a year, less than 10% of this represents the cost of transmission. The economic challenge of trying to avoid or defer transmission investment beyond what we have already realized is that you put the competitive efficiency of a $5 billion market at risk, in order to chase questionable savings in the 10% piece – penny-wise, but pound-foolish.

Allowing growth in demand to outstrip the capacity of our existing transmission system puts the benefits and perhaps even the reality of a competitive electricity market at risk. Experience in other electricity markets has shown that the practice of subsidizing generators to locate in particular places can have expensive and unintended consequences. Once generation economics start to hinge on capturing subsidies rather than on efficiency and low-cost, the broader benefits of the competitive market become compromised. Consumers expect and need generators to compete with each other on the basis of efficiency and generation cost. Transmission enables this competition to occur. Subsidized generation distorts it. Unless we invest in transmission, Albertans’ bills will continue to reflect the growing cost of rented band-aids, high losses and diminished competition. The longer we take to build the transmission we need, the more rent cheques go down the drain.

In southern Alberta, we have great sites for generating electricity from the wind. Investors are willing to build there, but we have a shortage of transmission. Similarly, northern Alberta is the logical place to locate fossil fuel generators. They are most efficient (both economically and thermodynamically) when they can be located at low altitude, in cooler temperatures and near a substantial supply of water. There too, we have a shortage of transmission. By bringing all electricity supply sources to all consumers across the province, transmission provides us with choice and forces suppliers to compete with each other.

Subsidizing higher cost, less efficient generators to locate in the middle does neither.

These are powerful realities. Some advocates of gas-fired generation in southern Alberta will soon enough be asking for subsidies – for without them their projects are unlikely to be able to compete. About half of Alberta’s residential consumers live in the transmission-constrained southern part of the province, but the case for reinforcing our transmission grid is not an argument for southern consumers alone. All Albertans benefit the most from the most competitive market possible. We must find ways to enable the fair and timely development of critical transmission infrastructure. We need more transmission capacity because that – not subsidized generators – is the best way to assure the competitive market that Albertans have come to expect.

The Battery and the Charger

This article originated here.

B.C. and Alberta need each other’s power

By Martin Merritt
About 14 years ago, Alberta began to restructure its electrical system, and it’s been quite a journey to the market-based system we have today. Most people don’t understand what an important role British Columbia’s government-owned system plays in our market. From my perspective as head of the agency charged with making sure Alberta’s electricity markets are fair, efficient and competitive, I see our relationship with B.C. as mutually rewarding.

Alberta’s electricity market includes a host of buyers and sellers. At one end of the spectrum are small consumers like you and me who depend on electricity in our homes; on the other are huge industrial consumers mining the oil sands, operating pipelines and milling forest products.

On the supply side, generators range from wind farms east of Crowsnest Pass to huge coal-fired plants near Edmonton. The diversity of Alberta’s electricity supply has increased substantially. We now have more technology, fuels, locations, ownership, and maintenance diversity than in the past. Our system’s reliability, its cost structure and Alberta’s collective exposure to various risks are well-served by this diversity.

Less known is that Alberta and British Columbia are buyers and sellers of each other’s power. We Albertans buy from B.C. during our peak hours. B.C. buys from Alberta during the night. This arrangement confers tremendous benefits on both provinces.

There’s a misconception among some Albertans that the relationship between Alberta and B.C. is parasitic: we’re the host and they’re the parasite. According to this argument, our western neighbour is pulling a fast one by preying on a weakness in our market design.

The facts do not support those ideas. The power-exchanging relationship between the two provinces is symbiotic, and the symbiosis is based on geography. Alberta has lots of coal and natural gas, while B.C. has big mountains, long valleys and lots of rain. It makes perfect sense that B.C. based its system on hydroelectric power while we constructed one that primarily burns hydrocarbons. Because of these basic realities, over the years the two provinces have evolved a mutually beneficial relationship – somewhat like a battery and a charger.

The power we get from next door perfectly complements our own – and vice-versa. Alberta’s electrical demand varies substantially throughout the day and across the seasons. When we are fixing supper and using our home appliances our demand for power goes up, as it does during heat waves and cold snaps. It tapers off during spring and fall. Like other mechanical devices, generators fail unexpectedly from time to time. If they are wind-powered, their output is quite variable and difficult to predict.

Whether for reasons of temporary high demand, short supply or both, we’re fortunate to be able to buy electricity from our neighbour. Last year B.C. sent us as much as 465 megawatts for brief periods. What we have in B.C. is a standby generator that can provide us with significant amounts of reliable power on short notice.

Could Alberta make do without B.C.’s hydropower? Sure, by over-building generation capacity in the province. It’s worth noting that we don’t just buy power from B.C. because we can’t supply it ourselves. We buy it anytime that they are willing to supply it for less than it costs in Alberta. Every hour of the year Alberta generators have to compete with B.C. for the right to serve Albertans. If we had built a generator of our own just to supply the power that B.C.’s government-owned generators sent us in 2007, it would have run only 742 hours over the course of the year, or just 8 per cent of the time. This would make as much sense as buying an additional family car to avoid the odd cab fare.

Like cars, generators have costs that are largely fixed. Investing over $500 million plus ongoing maintenance in a generator that would run infrequently would be a very poor use of capital in any market. At the end of the day such power would cost far more than the power we buy from B.C.

Mutual self-interest has evolved a smarter way. We sell electricity to British Columbia at night when we have surplus capacity, so they can recharge their hydroelectric reservoirs. We buy electricity from B.C. at suppertime or on cold days or when a larger-than-normal number of our own generators are down for maintenance.

Our neighbour buys electricity from us when we least need it, and provides it to us when we need it most. This enables both provinces to make optimal use of their generating and storage capacity and use assets more efficiently. This keeps power prices lower in both provinces than they would otherwise be.

This arrangement has evolved naturally because of the physical differences between our electrical systems. It depends very little on differences in our market models. Yes, the market models are different. Alberta has developed a system in which markets determine prices and the pace of investment, while B.C. has a regulated, government-owned power system. British Columbians are justifiably proud of their hydroelectric system, although today’s B.C. taxpayers do not appear as keen to invest in publicly funded generation as their parents were. As a result, B.C. has become a net electricity importer. Many Albertans might be surprised to learn that in 2007 we sold much more electricity to B.C. than we bought from them, though overall Alberta too was a slight net importer in 2007.

Despite the vast differences in our market designs and because of large differences in the mix of our generation assets, the electricity systems of Alberta and British Columbia enjoy a unique symbiotic relationship. The big battery next door provides a market for our night-time surplus and a peaking supply for our crunch periods. Combine this with an investment climate that has attracted a steady stream of investor-funded generation projects for the past ten years, and you have a system that has provided reliable, sustainable power to the most robust economy in the country.

Alberta’s Market Surveillance Administrator, Martin Merritt is head of an independent agency developed to ensure that the province’s electric markets operate in a fair, efficient and competitive fashion. The MSA also monitors the retail natural gas market.