Search This Blog

Showing posts with label google. Show all posts
Showing posts with label google. Show all posts

Friday, August 5, 2011

Hey Grid, What Makes You Think You're So Smart?

On July 1, 2011, Pacific Gas and Electric (PG&E), Southern California Edison (SCE) and San Diego Gas and Electric (SDG&E) submitted their Smart Grid Deployment Plans as required by the California Public Utilities Commission.  At 290, 178 and 391 pages respectively, the plans are definitely weighty.  They also contain lots of attractive graphics, informative statistics, and interesting projections.  They estimate an implementation cost in excess of $6 billion (on top of the more than $1 billion each for PG&E’s and SCE’s Smart Meter deployment) to achieve a set of vaguely defined benefits that they estimate to be only slightly greater than the cost.  The smart grid benefits include:
·      Safe and reliable integration of renewable energy resources.
·      Integrating electric vehicle charging into grid operations.
·      Enhanced demand response.
·      Customer empowerment.
·      Improved grid reliability – reduced outages.
·      Automated and improved grid management.
·      Foundational and cross-cutting utility systems, facilities and programs necessary to continuously improve application of new smart grid technologies.  (Whatever that means.)

Behind the plans is the implication that there are massive future benefits that have not yet been identified – Smart Grid killer apps if you will – that will do for the electricity industry what advances in cell phone technology have done for the telecommunications industry.  That promise of future market transformation and a wonderful new world brought about by the new and improved Smart Grid is the underlying driver behind this process.  Otherwise, it is just boring utility infrastructure stuff.  The problem is that the platform for developing this exciting future is being crafted by utilities and their regulators, a combination not known for innovation.  Google and Microsoft, entities with a somewhat better reputation for high-tech innovation have recently terminated their nascent Smart Grid programs.  What’s the deal?

The problem is simply that the utility industry does not and cannot undertake the kind of risk-taking and innovating needed to make the Smart Grid anything more than an incremental improvement in utility operations.  It has nothing to do with the quality, intelligence, and forward thinking of utility management and everything to do with the regulatory compact under which utilities and their regulators operate.  In other words, it’s all Samuel Insull’s[1] fault.  It was Insull who promulgated the idea of natural monopolies to avoid the costly waste of duplicate electric systems and the use of regulated rates to protect consumers.  Under this simulated market model, utility companies have their regulators determine whether investments proposed and expenses incurred are just and reasonable and issue Certificates of Public Convenience and Necessity to approve proposed investments.  Utilities are then allowed to recover their costs and a return on equity for their capital investments.  Thus, utility focus is not on offering consumers the most value or developing competitive advantage through innovative products, but on building ratebase and demonstrating to their regulators that their investments and expenses are reasonable and thus worthy of recovery through rates.  In other words, utility earnings are a function of how much stuff they can convince regulators it is reasonable for them to own.  This is not a recipe for the innovation and risk-taking required to develop new and better products or services or for finding new needs or wants that The Smart Grid can fulfill.  It is, however, a great way to build ratebase in new ways and to pass the cost to consumers based on potentially illusory – but reasonable – anticipated benefits.  Up side may be limited to an authorized rate of return on equity, but even failed investments or massive cost overruns can be charged to consumers provided they are found to be just and reasonable.  Utilities have no incentive to think outside the box, but plenty incentive to make sure the box is very well built using the finest, most reasonable, materials.  Is it any wonder that Google and Microsoft decided to take a pass?

What can we expect from utility Smart Grid activities?  The most likely thing is capital investments that reduce operating expenses.  This is consistent with the initial Smart Grid investment – the Advanced Metering Infrastructure, aka smart meters.  While utilities wax poetic about empowering customers and facilitating demand response, the primary benefits of the new metering infrastructure are eliminating the need for meter readers and the getting the ability to turn electric service on and off remotely.  Both replace pass through expense items (employees) with rate based investments in meters.  On top of that, California utilities will be able to continue to get a rate base return on the old – not smart – meters that are being replaced.  They were, after all, a reasonable investment when purchased.  Other Smart Grid investments in distribution and transmission automation will be justified based on things like reduced outage rates and durations - soft benefits, but reasonable. 

The bottom line is that as long as The Smart Grid is in the realm of utility companies and regulatory agencies its impacts will be limited and the transformative “killer apps” will remain nowhere to be found.  Remember, when cell phone licenses were issued in the early 1980s, at least two licensees were allowed in each area and only one could be a regulated telecommunications company.  It was this competition, not the reasonableness of cell phone services that produced the innovation and amazing success of the industry.  We have a long way to go before that kind of competition comes to the electric utility industry.  But at least now I can find out how much electricity my house uses each hour, information I never realized I needed before, but may soon be able to access from my Smart phone.


[1] Insull started as Thomas Edison’s private secretary in 1881, developed the regulated utility industry model into a thirty state empire, was indicted and tried for fraud in the 1930s only to be acquitted by a jury that needed only two hours of deliberation to reach their verdict. 

Friday, July 15, 2011

Googling Electricity


Google recently announced that it would be providing a $280 million equity investment in SolarCity to support SolarCity’s residential solar lease program.  SolarCity claims that the cost its 20 year solar PV system lease would be lower than the electricity bill savings over the life of the lease.  The prospect of a rooftop solar system providing electricity at a lower cost than the local electric company is a potential game changer that I had to investigate.  I was surprised to find out that by putting a leased solar system on my rooftop I can get electricity for 20 years at a fixed price of about 12¢ per kWh.  How could this be?  Does it portend the beginning of the end for the electric utility industry?  Was Jerry Brown aware of this when he made a campaign promise of 12,000 MW of distributed generation in California?  So I decided to sharpen up the spreadsheet and find out.

How Does It Work?
There are currently at least three companies offering residential solar leases or power purchase agreements in my area.  They all offer variations on the same concept:  a zero down payment ten or 20 year lease with payments (per month or per kWh) that increase by a fixed percentage (2.5 to 4%) each year.  The lease can be converted to a fixed payment for the entire term by making an up front payment of 5% or more of the net purchase price, or could be entirely prepaid.   The effective annual interest rate for deferring payment is over 13%, which takes a serious bite out of the savings and makes prepayment attractive.  The cost of the prepaid 20 year lease came out to under $3.50/watt DC, including a 20 year equipment warranty and a meaningful[1] annual production guarantee.  The maximum cost of electricity (payment / total guaranteed production) is 13.2¢/kWh, compared to my current average electricity rate of 17.5¢/kWh, a price which has increased an average of 5.3% annually over the last 10 years.  The utility’s net metering program, which credits peak period (daytime) production at higher rates, results in an actual bill reduction of 27.5¢/kWh, making the solar investment look even better.  Should utility rates continue to increase at 5.3%, the savings would average almost 48¢/kWh.

Is It Really That Cheap?
This can’t be right, there must be hidden subsidies involved somewhere.  In fact, the difference between the total cost of the system and the prepaid lease cost is about $2.70/watt – over 40% of the total system cost of $6.20/watt.  And this is without attaching any value to the performance guarantee or the 20 year warranty, which includes anticipated replacement of the inverter after a dozen years or so.  The reduction includes the California Solar Initiative (CSI) - $.30/watt,  a 30% Federal investment tax credit - $1.76/watt, and lease savings - $.64/watt.  How can it possibly cost less to lease a system for 20 years (after which they either give it to you or uninstall it and return your roof to its pre-solar condition) than to buy it?  Two things – depreciation and RECs.  Google – the equity investor – gets to depreciate its entire cost of the systems it leases in the first year, which translates to a 30% income tax reduction off the top.  Assuming a 100% equity investment and all the other subsidies, Google’s net cost of the system is $2.16/watt.  That leaves $1.34/watt for operating cost and profit.  The value of the Renewable Energy Credits (RECs) is a bit more difficult to estimate.  Values from 0.5¢/kWh up to the California PUC’s price cap of 5.0¢/kWh have been suggested, which over 20 years equates to between $.13 and $1.30/watt.  And, of course, it will be much easier for Google to extract that value from $280 million in solar investment than it would be for anyone with a small residential sized system.  So, Google gets a healthy return on its green investment, I get to save money on electricity while demonstrating my green chops, and SolarCity gets to create jobs and support US-made solar equipment.  Everybody wins.

So Who Pays?
Obviously, if I’m paying $3.50/watt for a solar system that costs $6.20/watt to install and SolarCity and Google are profiting, someone else is picking up the tab.  For that we can thank the American taxpayers and California utility customers.  Federal tax credits and accelerated depreciation cover more than half of the retail cost of the system.  In a less “climatically correct” environment these would be characterized as tax loopholes that increase the federal deficit.  The CSI rebate, one component of a 1.5¢/kWh “Public Purpose Program” charge on California electric customers, currently covers 30¢/watt (it was once $2.50/watt).  Net metering – the ability to be credited for daytime solar generation at high peak period prices (26.5 to 48.5¢/kWh) while being charged for night time usage at off peak rates (9.3 to 31.6¢/kWh) – means that every kilowatt-hour my leased solar system generates at a cost of 13¢/kWh reduces utility charges by 27.5¢/kWh, while saving only 6-10¢/kWh in fuel costs.

Is It Worth It?
Advocates of renewable electricity cite energy independence, climate change mitigation and job creation as reasons for investing in (or subsidizing depending on your perspective) technologies like wind and solar.  As I pointed out last year here, the United States uses very little oil to make electricity.  In California the marginal fuel for power production is natural gas, little of which is imported.  As a source of GHG reduction, solar costs about $187/Tonne of CO2 equivalent.  The renewable industry does appear to create jobs, however, and does so without competing with other non-government industries.  I guess we should just think of it as a 21st century version of public works projects.  Yes, I did indeed decide to buy 20 years of electricity up-front.  Just doing my part for the economy.  


[1] You are paid 18.9¢/kWh escalating at 3.9% annually for production under the guaranteed level.