MEA STATUS REVIEW – September 2011
By Gene Dyer, San Rafael

OUTLINE

This review has several sections, as follows:

-          Enabling Legislative History
A review of the history of the enabling Laws allowing creation of CCAs and the rules related to renewable resources, including some of the promised benefits and some unintended consequences.

-          Rate Comparisons
A comparison of current MEA and PG&E rates and charges.

-          MEA Performance  - Reduction of Global Warming
A review of the actual reduction in global warming accomplished by MEA to date, and near term related future prospects.

-          MEA Performance – Current Financial

-          MEA Performance – Future Financial
 Factors effecting MEA’s probable long term financial viability.

-          Other Factors – Jobs, Technology Choices and Expansion to Other Communities

-          A DETAILS Section Containing Calculations supporting the data used in the above review.

-          REFERENCES and LINKS TO INTERNET SITES for ADDITIONAL SUPPORTING INFORMATION

ENABLING LEGISLATION AND UNINTENDED CONSEQUENCES

In the late 1990s the Legislature decided to deregulate the electricity business, including requiring  PG&E to purchase spot power rather than enter into further long term purchase commitments and at the same time the CPUC did not allow them to increase their rates.  As a result, when energy suppliers like ENRON manipulated the supply system forcing a major increase in the spot power prices, PG&E was driven into bankruptcy. (1)

Embarrassed by their failure, in 2002 the Legislature enacted Assembly Bill 117 enabling the formation of Community Choice Aggregation systems. (2) While this law did provide for local control, it was faulty in that it allowed the creation of systems involving two separate sources of electricity supply (PG&E and MEA),  retained a single entity for the electricity distribution (PG&E), and two separate sets of users (PG&E customers and MEA customers).  It ignored the fact that when something goes wrong in the future causing a power shortage and resultant brown-outs  or black-outs, no one will be able to tell which side was at fault, PG&E or MEA for not providing enough power or PG&E or MEA customers using more than the planned amount of power.  The result will be each set of customers blaming the other system – with resultant law suits – from which only the lawyers will win.

The authorizing legislation was also very clear that continuing PG&E customers should not be penalized by new CCAs taking away some of their customers, which otherwise could incur PG&E  losses due to the fact that it had already made provisions for providing that amount of power from its own supply system.  This has resulted in a Power Charge Indifference Adjustment (PCIA) charge to all PG&E customers who leave to join MEA.

Another feature of this new law was the provision that new CCAs were authorized to automatically switch enrollment from their current utility supplier unless the customer takes steps to Opt-Out.  While done because the promoters were not sure that they could convince enough customers to switch, this concept is totally contrary to normal business where a supplier wins over customers as a result of either price, product quality, or a combination of each.

An unintended consequence of this legislation is that while it authorizes CCA’s to automatically enroll potential customers, it does not mandate how or when potential enrollees can be selected.  Thus, a CCA can initially cherry-pick the largest users, who pay at higher unit rates, and leave the smaller less favorable customers on the PG&E rolls until a significant later date.  That is exactly what MEA has done to date with its Phase 1 enrollments.  While this may be acceptable as a method to cover start-up costs, MEA has now modified its enrollment plan to include a new Phase 2a during which it will primarily enroll only larger commercial customers – leaving the residential customers until later.  Thus, in this interim Phase 1 and Phase 2a periods, while MEA is enjoying the benefit of the higher paying customers it is also denying that benefit to PG&E – which ultimately will result in the remaining PG&E residential customers paying the difference when the next PG&E allowable rate adjustment is considered by the CPUC.   PG&E would be justified in requesting that the results of this cherry-picking be added to the PCIA charge since it damages those who remain with PG&E.

In 2006 the Legislators passed Assembly Bill 32, the Global Warming bill, which mandated that all utilities start providing Renewable Energy with specified schedules. (3) While intended to set in motion actions to decrease future global warming the law included definitions of renewable energy which specifically excluded large hydroelectric plants – even though extensive scientific studies have shown that, although solar PV panels do not generate any CO2 during their operation,  the global warming caused by the mere act of building solar PV systems is greater than the related global warming caused by hydro-electric facilities.  In fact, when there already exists a surplus of electricity production capacity, the construction of any new power generation facility contributes to global warming until such time as the CO2 produced in its construction is less than the cumulative CO2 that would have been produced by a fossil fired plant it is replacing. (4)

As a result of these new laws, and in spite of some admittedly bad practices on the part of PG&E, the Marin Energy Authority was created.  However, in convincing the County and Cities to join, the promoters very clearly promised that they would provide 25% green renewable energy at a cost not to exceed the cost to PG&E customers. (5)

RATE COMPARISONS

Of the 70,000 potential MEA customers, about 50,000 are residences with the remaining being industrial, municipal and commercial.  For simplicity, this analysis deals only with this much larger residential group.

Both PG&E and MEA customer bills include a number of components other than the cost of generating the electricity used.  These are normally “bundled” together into a single rate.  The generation and transmission portions of this bundle both have increasing rates for higher tiers of electricity usage.  However, MEA customers pay for their Generation costs separately, with a separate bundle of the costs not associated with generation costs.  Further, the tier structures and the quantities that are used to calculate each tier costs are identical for PG&E and MEA.  Thus, the relative costs to PG&E and MEA customers can be easily seen by comparing the underlying Rates that are used by each.  These rates are shown in the following table.  (The MEA fiscal year runs from mid-year to mid-year so comparable time periods are involved.)

PUBLISHED MEA AND PG&E CATEGORY E-1 RESIDENTIAL GENERATION RATES

Tier

MEA FY 2012 Rates (6) Cents/KWH

PG&E Rates, June 2011 (7)

Cents/KWH

                 

MEA Rate Premium

Per Cent

1

3.7

3.552

4.384

12.463

14.449

14.449

+ 4.35 %

2

4.5

+ 2.65 %

3

13.4

+ 7.52 %

4

18.5

+ 28 %

5

21.5

+ 48.8 %

 

However, the term MEA Rate Premium does not tell the whole difference between PG&E and MEA charges since the above mentioned PCIA charge to all MEA customers is not included in the above rates and is rather billed as a separate charge to all MEA customers.

The PG&E published rate for this PCIA cost is 1.92 cents/KWH for customers departing from PG&E in 2011. (8)  The charge for 2012 has not yet been determined. 

MEA has contested the basis for the calculation of this rate, hoping that the rate will either be reduced, or go to a zero value, by the CPUC in current hearings on PG&E rates. (9)  PG&E has responded claiming MEA’s positions are incorrect. (10) (Both arguments are provided in the reference links listed below.)  However, there has been no decision to date on any such change.

Until this matter is resolved this subject should be treated as a cost to each customer in determining the competitiveness of MEA with PG&E.

There is a further administrative problem in that the PCIA charge does not appear as part of the MEA generation charge, but rather appears on a separate page along with the other non-generation charges.  Thus, an MEA customer may not see or even know that he is being charged this extra 1.92 cents/KWH compared to a PG&E customer.

Ideally, MEA should immediately decrease their residential rates to match the PG&E rates, including a reduction of all tier rates by the separate PCIA charge.  More practically, since no residences are being added (except for the 100% option) until next year, there is no need for such an adjustment at this time.  However, the impact of such an adjustment will occur in the Future Financial section of this analysis dealing with the economic viability of MEA in the near term future.

MEA PERFORMANCE – REDUCTION of GLOBAL WARMING

When asked if a new environmental study would be required for MEA to enter into a new contract Shell clearly responded that none would be required since no new facilities needed to be built in order to provide the needed renewable energy.

This statement was made about the same time as the Shell parent company announced that they were getting out of the renewable energy business to concentrate on their fossil fuel business.

The implication of these statements was quite clear. Since no new facilities would be built Shell was merely diverting existing renewable energy from its existing customers to give it to MEA.  Bottom line – no immediate reduction in global warming and the initial MEA claims to such a reduction were false and misleading.

MEA counter proposes that their entrance into the market for renewable energy sources has caused others to subsequently create new renewable sources – with a related reduction in global warming.  However, this statement is true only as a general principle since there is not yet any quantitative data to support it.  Thus, continued MEA claims are not substantiated.  Until they can be substantiated MEA should be required to cease and desist in its widely publicized claims – obviously aimed at gaining more customers, and possibly even libelous.

On the other side, MEA has in the last year taken more positive steps in the direction of assisting in the creation of new renewable sources.  Three projects are being implemented.

- First, they have established a Net-Metering program where those with a solar panel on their roof can be reimbursed at the end of the year for energy generated in surplus to their usage.

-  Second, they have established a Tariff In-Feed program whereby they will buy surplus electricity from local roof top owners.

-  Third, they have contracted with two landfill sites which will capture and use methane off gas to generate renewable power.  Each site will generate 1.6 MWe of electricity. Although this process still produces CO2 the resultant effect is substantially less than if the methane gas had merely been allowed to escape into the atmosphere over a longer period of time.

- Fourth, they have recently contracted for the output of three new 10 MWe solar PV plants, plus a new local 1MWe solar PV plant.

Thus, although these new facilities will not have the capacity to provide the 25% power needed, they are moving in the direction promised.

Incidentally, the response to their invitation for bids was much larger than they expected.  However, they have recognized that they could not now purchase more that 31 MWe at the price offered without risking their financial viability – unless PG&E raised their prices significantly – allowing them to do the same.

 

MEA PERFORMANCE – CURRENT FINANCIAL

MEA has been a financial success to date.  However, this is clearly the result of two factors.

First, they were extremely lucky to have entered into the market just as the economy declined in 2008-2009 and, as a result, obtained a very low unit price from Shell.  In fact, the price is low enough that, while covering Shell’s operating costs, they are not receiving the normal industry expected return on their capital investment.

Second, they intentionally front loaded their Phase 1 customer base with the large industrial and municipal (street lights) users where those customers paid an average of about 10 cents per KWH during the first reported period of MEA’s operation (May through December, 2010).  This price to these large customers was substantially greater than the 5.928 cents per KWH that MEA had to pay to Shell for the power used.

That large users pay higher unit prices is entirely consistent with California Public Utility pricing policy, as dictated by law and regulated by the CPUC, which has for many years been based on formulas which have the large users rates set to subsidize the smaller users.  MEA, in setting it’s rates, has generally followed this practice.

Thus, the major question becomes “Will the extra money from the large users in Marin, where we have no significant industrial base, cover the losses on the much greater number of smaller users?”  That is an extremely difficult subject to calculate, especially with the myriad of rates for different classes of users and the differing costs with different tier rates and different consumption.  Presumably MEA has its consultants doing such spread sheet calculations – and should publish the results.

Lacking any such information from MEA, a very simple calculation shows that, even if MEA does not lower their rates to match PG&E, only those customers using enough electricity to incur substantial charges in Tier 3, or higher, will pay their share of the Shell costs. Further, if the PCIA charge does not get reduced, thereby requiring MEA to reduce its tier rates to compensate for it, MEA would likely lose several million dollars per year on their residential customers.

MEA PERFORMANCE – FUTURE FINANCIAL

One of the major premises made by the promoters of MEA was that in the long run the cost of fossil fuels would substantially increase, causing PG&E to increase their prices, and thereby allow MEA to increase their competitive price so as to allow their purchase of admittedly more expensive renewable energy which would fix the price over the lives of the production facilities – i.e., perhaps 25 years for solar systems.

However, MEA and its advisors did not count on two factors that have subsequently come into play.

The first is the economic downturn, that helped MEA get a good price from Shell, also caused a reduction of use of natural gas for power production – decreasing its cost.

The second is the new technology development that has occurred in the natural gas production industry, called Fracking, where natural gas entombed in large shale beds can be economically recovered.  This greatly increased the availability of natural gas, with a resultant decrease in its market price for power production.

In fact, the price for natural gas was slowing increasing to about $8.00 per million BTU (a unit of heat energy), with peaks of $12.00, until it nose-dived in late 2008-2009 to about $4.00 - $5.00 per million BTU – and has stayed there ever since. (11)

Thus, PG&E’s fossil fuel costs are not likely to increase as much as MEA had predicted and MEA will not be able to increase its prices if it is to remain price competitive with PG&E.

In the near term, MEA claimed that they have a fixed price for 5 years with their Shell contract.  However, their successful negotiation to receive an even better pricing for their Phase 2a enrollees has opened the door as to what the price will be when they again negotiate the price for the remaining 50,000 residents just prior to July 2012.  If they could negotiate the price down for Phase 2a it is just as likely that Shell could negotiate the price up for the residential requirements.  Thus – MEA has not fixed the near term price for electricity from Shell for the remaining portion of the 5 year contract.

Further, while most of their purchases are currently from Shell, MEA has established Net-Metering and Feed-In Tariff programs and has entered into contracts for new renewable resources at prices far exceeding the current 5.98 cents per KWH from Shell.  The Net-Metering program pays the residence 1 cent per KWH in excess of the users normal charge. The Feed-In Tariff prices range from 8 to 14 cents per KWH depending upon their time of day availability, their reliability and the duration of the contract. (12) The price from the two 1.6 MWe landfill gas generators has been set at 10 cents per KWH, plus inflation, (13) and the price for their new 31 MWe solar PV resources has been set at 12.7 cents per KWH, plus inflation. (14)

This commitment by MEA to the purchase of 25 years of electricity from these latter new renewable sources must be paid for by any surplus that the large users are paying minus the losses that MEA will incur on the residential users - unless PG&E significantly increases its prices – allowing MEA to do the same.

There is, however, another significant factor on the horizon for the CPUC has authorized PG&E to implement a major change to its rate structure effective July 2012. (15)  That change will involve the use of a flat rate instead of the existing tiered structure for all electricity generation and transmission components of the bundled rates and insertion of a new tiered charge called the Conservation Incentive Adjustment (CIA).

While approved in principle, no specifics have been announced by PG&E other than that, as required by the CPUC, the change will be “rates neutral”.  In addition to being rate neutral between the new flat rates and the new CIA rates, the CIA will promote conservation by having a negative rate (credit) for the lower tiers and a positive rate for upper tier large users.

For obvious reason MEA has not yet taken a position on how it well react to this change or, not being subject to CPUC rate rules, whether they will make any change. Although the MEA staff seem hopeful that this change will be to their advantage that is hard to believe since any change will be rate neutral.  If MEA is not price competitive now there is no reason to believe that a rate neutral change will help to make them so.

 

 

 

 

 

OTHER FACTORS

JOBS
A minor consideration is the extent to which MEA has, or will, promote local jobs in their procurement practices.  Clearly they did not with their initial contract with Shell.  Their promotion of local rooftop units by their Tariff-In Feed program will promote jobs associated with individual sites, but is probably limited in quantity.  Their contracts with the landfill sites will result in jobs in Northern California, but not in Marin.  Lastly, their recent solar contract will provide a small number of jobs associated with the 1 MWe solar facility to be located In Marin but the jobs associated with the three other 10 MWe facilities will be elsewhere in California.

Perhaps more important is where the solar PV panels will be manufactured.  MEA did not clearly respond to a specific request on this issue, but indicated that the cheapest units were made in China.  Having selected the lowest cost bidder each reader can draw their own conclusions until MEA is forthcoming on this issue.

It looks like we are getting our steel for the Bay Bridge from China, the trains for Smart from Japan and now the solar panels for our renewable energy from China (causing US Government subsidized solar PV production plants to go bankrupt).  We need to learn that buyers get the suppliers that they deserve by their buying habits.  Selecting the lowest price bid from foreign sources is not going to create jobs in America.

TECHNOLOGY CHOICES

LANDFILL
The MEA staff is to be congratulated on encouraging and then obtaining contracts for the use of landfill off-gas methane to generate renewable energy.  While this process does produce CO2 for global warming, the otherwise slow release of the methane generated in the landfill would have been much worse since the global warming effect of methane is several times that of an equal amount of CO2 gas.

SOLAR PV VS SOLAR THERMAL WITH ENERGY STORAGE
Solar power in general suffers from several problems.  First, the conversion of sunlight energy to electrical energy is quite inefficient, with units operating at from 15 to 20 percent efficiency.  Second, the panels become further inefficient if they are not directly facing the sun all day – requiring mechanisms to make them do so – with varying degrees of complexity depending upon the size and geometry of panel arrays being oriented.  Third, no electricity is produced at night, and even during the daytime the electrical output is diminishing at the same time late in the afternoon when the peak electricity demand occurs. (16)

While MEA has now committed to a 25 year contract with a foreign subsidiary supplier who will be using solar PV panels, there is a more recently developed technology, which both PG&E and San Diego Power are buying, called Solar Thermal, (17) which in lieu of using expensive solar PV panels uses much cheaper flat plate mirrors to reflect the solar onto a heat exchanger in an elevated tower.  In the simplest form, the heat is used to boil water into steam, which drives a steam turbine to generate electricity, with the exit steam condensed by air cooling to allow water recycle back to the heat exchanger.  In a somewhat more complicated version, the heat is stored in a molten salt which in turn boils water in another heat exchanger.  For energy storage, a separate tank stores part of the hot molten salt for continued electricity generation after the sun goes down.

Two large projects, which will use the simpler direct steam process, are now underway.  A 392 MWe plant at Ivanpah in the Mohave Desert is under construction and is scheduled for start-up in 2013. (18) Contracts have been signed with both PG&E and San Diego Power and Light to purchase a large portion of the output of the Ivanpah plants.  In addition, two 250 MWe plants are planned to be located at the Hidden Hills site near Inyo, CA, scheduled for start-up 2015. (19)

Although the pricing of these plants has not yet been made public, it is quite likely that the unit cost will be less than for solar PV plants since the efficiency of such plants in converting incident solar energy into electricity is on the order of 40 percent compared to 15-20 percent for solar PV.  Further, while additional relatively conventional utility technology equipment is required for the steam to electricity generation portion, the flat plate mirrors are much less costly than solar PV panels.

Thus, while MEA has fixed the cost of its solar PV contracts for the next 25 years, there is a distinct risk that they may have bet on the wrong technology and committed to a higher price than necessary.  Thus, the philosophy of using renewable energy to fix the long term price of electricity may not be the best approach in this rapidly developing field.

 

 

 


EXPANSION TO OTHER COMMUNITIES
In recent months the MEA staff has been conducting promotional activities to encourage other communities to either form their own CCA or to join MEA.

While there is no prohibition of this activity in the enabling legislation such activity was never mentioned during the County and City approval stage and is directly opposite to one of the main purposes of the legislation – to give local communities control.

Additionally, the addition of communities with significantly different electricity uses would present problems with respect to how to allocate rates and funds.  As an example, Richmond has a much larger industrial base.  Would they really want the residential base in Marin to be dictating their industrial rates?  And would their membership on the Board of Directors be enough for them to have their own local control?

While there should be no problem with MEA allowing their staff to separately contract with other communities relative to the feasibility of them setting up their own CCA – MEA should not be in the business of helping them.  Being a start-up advisor is not within the scope of the enabling legislation.

DETAILED CALCULATIONS

AVERAGE COST OF POWER TO THE INITIAL LARGE ENERGY USERS

The MEA December 31, 2010 financial report showed the following:
Revenue of $
10,504,696
Energy Cost = $ 7,418,662
Administrative costs (Excluding any debt interest and repayment) = $1,567,259
Net Profit (Excluding any debt interest and repayment) = $1,518, 775
 Number of customers = 9,000
Energy Usage = 98,173,000 KWH

Simple division of the revenue by the KWH gives an average rate to their large customers during this time period of 10.7 cents per KWH.

 

THE COST OF POWER TO MEA

This analysis is done for only the calendar year 2012, the year in which MEA has indicated that it would add most of the residential units.

Although MEA is gradually adding other electricity resources, all of which are more expensive than the cost from Shell, the bulk of their power is purchased from Shell.

The cost of purchasing electricity from Shell, the primary source for the Phase 2 requirements, is the sum of several components, a usage fixed charge/KWH for all electricity plus a premium charge/KWH for all renewable electricity.  To this is added a small fixed monthly charge for Resource Adequacy (a capacity charge).

While the contract price is given in $/Megawatt Hour, for convenience these are converted here to Cents/KWH.  (Simply divide by 1000 to make the conversion.)

BASIC ELECTRICITY PRICE

The Shell Fixed Price of basic electricity (which increases each year) for Phase 2 in 2012 is 5.578 cents/KWH.

PREMIUM CHARGE FOR THE RENEWABLE COMPONENT

The premium charge for renewable electricity for the Phase 1 electricity load was 3.9 cents/KWH for Eligible Renewable and 1.05 cents/KWH for Other Renewable.  These premium charges were changed for the Phase 2 power purchases to reflect four different categories of renewable power – basically reflecting new rules relative to whether the renewable power is produced locally or out of State and the degree that the electricity is available 24/7.  These categories and their prices are:

Category 1        4.80 cents/KWH  
Category 2        1.45 cents/KWH
Category 3        1.25 cents/KWH
Other                 1.05 cents/KWH

The Phase 2 contract calls for 16,731 MWH using Category 2 and 2187 MWH from the Other Category.  Thus the weighted average premium charge will be as shown in the following:
((16,731 x 1.45) + (2187 x 1.05)) / (16,731  + 2187) = (24260 + 2296) / 18918 = 1.40 cents/KWH.

Total Cost From Shell Calculation

1 KWH of 25% green power requires 0.75 KWH base power + 0.25 KWH renewable power.

Cost of 25% Renewable Power from Shell Contract – Cents/KWH

Year

Base Price

Add for Renewable

Total Price
Renewable

0.75 X
Base

0.25 X Total
Renewable

Total Price / KWH Base + Renewable

2012

5.578

1.40

6.978

4.1835

1.7445

5.928

 

 

REFERENCES AND INTERNET SITE LINKS TO SUPPORTING INFORMATION

(All internet links are given in text format and are also automatically linked to the site. If you have a hard copy of this analysis you will need to copy a link and enter it into your computer browser to go to the site. If you  have this document on your computer, you should be able to merely click on the link to go to the site.)

1 - A US Energy Information Agency review of the California Electricity Deregulation Problem.
http://www.eia.doe.gov/cneaf/electricity/california/subsequentevents.html

2 - Assembly Bill 117 enabling the formation of Community Choice Aggregation systems.
http://www.leginfo.ca.gov/pub/01-02/bill/asm/ab_0101-0150/ab_117_bill_20020924_chaptered.html

3 - Assembly Bill 32, the Global Warming bill, CA Air Resources Board Facts Sheet
http://www.arb.ca.gov/cc/factsheets/ab32factsheet.pdf

4 - Life Cycle Studies of the Global Warming by Various Electricity Generation Technologies
http://en.wikipedia.org/wiki/Comparisons_of_life-cycle_greenhouse_gas_emissions

5 - MEA Implementation Plan, including Phasing schedules
http://marincleanenergy.info/images/stories/PDF/MEA_Implementation_Plan_Jan_2010.pdf

Residential Electricity Rates as published on the MEA and PG&E web sites.
6 - MEA – http://marincleanenergy.info/index.php?option=com_moofaq&view=categories&id=16&Itemid=172
7 - PG&E - http://www.pge.com/tariffs/tm2/pdf/ELEC_SCHEDS_E-1.pdf

 

Power Charge Indifference Adjustment Rate (PCIA) and Correspondence with the CPUC.

8 - The current rates for the PCIA charge to all MEA customers is given on Sheet 5 at:
http://www.pge.com/tariffs/tm2/pdf/ELEC_SCHEDS_E-1.pdf

The reference case number with the CPUC is Proceeding R0705025

All related correspondence links are available at the CPUC web site at:
http://www.cpuc.ca.gov/PUC/serp.aspx?cx=001779225245372747843:e2wnztai65q&cof=FORID:10&utf=UTF-8&q=power+charge+indiference+adjustment&sa=saSearch#1400

9 - The MEA argument for a reduction in this rate is given at:
http://docs.cpuc.ca.gov/efile/P/138520.pdf

10 - The PG&E counter argument is given at:
http://docs.cpuc.ca.gov/efile/BRIEF/136205.pdf

11 - Price of Natural Gas for Electricity Generation
http://205.254.135.24/dnav/ng/hist/n3045us3m.htm

12 - MEA Feed-In Tariff Rates
http://www.marincleanenergy.info/images/stories/PDF/MCE_FIT.pdf

13 - MEA Contracts for Sanitary Landfill Of-Gas Electricity Generation
Not yet posted on the MEA web site

14 – MEA Contract with enXco for 31 MWe Solar PV
http://marincleanenergy.info/images/stories/PDF/Cottonwood_Solar_PPA.pdf

 15 - PG&E Change to a Flat Rate and a New Conservation Energy Adjustment, PG&E Item 8
http://www.pge.com/nots/rates/tariffs/tm2/pdf/GAS_3214-G.pdf

16 - CAISO Chart of Hourly Electricity Demand
http://www.caiso.com/outlook/SystemStatus.html

Solar Thermal Technology and Projects
17 - Solar Thermal with Energy Storage Technology - Concept
http://www.brightsourceenergy.com/technology
18 - Ivanpah Project – Summary by US National Renewable Energy Laboratory
http://www.nrel.gov/csp/solarpaces/project_detail.cfm/projectID=62
19 - Hidden Hills Project – CA Energy Commission Status Report
http://www.energy.ca.gov/sitingcases/hiddenhills/