**Errata to**

**BPA POWER PRODUCTS CATALOG**

**September 1999**

Page 16: **Factoring Product --** Availability section -- remove second
sentence. See attached replacement page.

Page 17: **Detailed Description: Factoring Service and Benchmark
Methodology** - Timing and Duration of Purchase Commitment section. Last
sentence -- inserted "at the time of signing a Subscription Contract."
See attached replacement page.

Page 24: **Block Partial Service** -- Transmission Losses Section --
corrected as follows -- "Transmission losses are included in this
product". See attached replacement page.

Page 25: **Detailed Description: Block Partial Service** -- Purchase
amounts, paragraph two, line five -- removed the word "adjusted". See
attached replacement page.

Page 29: **Detailed Description: Block Partial Service With Shaping
Capacity** -- Timing and Duration of Purchase Commitment section. Last
sentence, added - (See maximum Purchase Amounts section, next page.) See
attached replacement page.

Page 31: **Graph 1 -- Example of 20 MW Block with 5 MW Shaping
Capacity.** Corrected graph inserted. See attached replacement page.

# 

+----------------------+-----------------------------------------------+
| ***Core Subscription | ***Factoring***                               |
| Product***           |                                               |
+----------------------+-----------------------------------------------+
| **General**          | For purposes of the core Subscription         |
|                      | products, the term "factoring" refers to the  |
|                      | service of shaping a given quantity of MWhs   |
|                      | among (With-in Day) hours of a day or         |
|                      | (With-in Month) days of the month, to follow  |
|                      | load. Factoring Service is distinct from that |
|                      | feature of the Full and Actual Partial        |
|                      | Services which meets energy load variance.    |
|                      | This service is a bundled component of        |
|                      | Subscription Core Products for Full Service   |
|                      | and Actual Partial Service. Factoring,        |
|                      | subject to the benchmarking process, may be   |
|                      | purchased as a staple-on to a Firm Block core |
|                      | product.                                      |
|                      |                                               |
|                      | Complete details are in the attached pages.   |
+----------------------+-----------------------------------------------+
| **Availability**     | This product is intended for customers who    |
|                      | have a right to purchase under NW Power Act,  |
|                      | section 5(b) from BPA.                        |
+----------------------+-----------------------------------------------+
| **Purchase Period**  | Factoring may be purchased for the same       |
|                      | period as the underlying block purchase,      |
|                      | beginning October 1, 2001 (or another term    |
|                      | consistent with the Rate Schedules).          |
+----------------------+-----------------------------------------------+
| **Transmission and   | Transmission delivery and Ancillary Services  |
| Ancillary Services** | are not included in this product except as    |
|                      | noted below. Any Energy Imbalance that occurs |
|                      | as a result of Retail Access Load Loss is not |
|                      | covered by this product.                      |
+----------------------+-----------------------------------------------+
| **Load Variance**    | Not included.                                 |
+----------------------+-----------------------------------------------+
| **Load Growth**      | Not included.                                 |
+----------------------+-----------------------------------------------+
| **Linkages**         | Factoring Service is available in conjunction |
|                      | with the purchase of core Block power         |
|                      | products. This service is a bundled component |
|                      | of Subscription Core Products for Full        |
|                      | Service and Actual Partial Service.           |
+----------------------+-----------------------------------------------+
| **Applicable Rates   | See Core Product Billing Factors in the       |
| and Billing          | catalog, Appendix B. Refer to 2002 Proposed   |
| Factors**            | Wholesale Power Rate Schedule for applicable  |
|                      | posted rates.                                 |
+----------------------+-----------------------------------------------+
| **Transmission       | Transmission Losses are not included in this  |
| Losses**             | product.                                      |
+----------------------+-----------------------------------------------+

#  Detailed Description: Factoring Service and Benchmark Methodology

**General & Availability:**

For purposes of the core Subscription products, the term "factoring"
refers to the service of shaping a given quantity of MWhs among hours of
a period to follow load. Factoring Service is distinct from that feature
of the Full and Actual Partial Services which meets energy load
variance. This service is a component of the Subscription core products
for Full Service and Actual Partial Service. It is designed to provide a
basis for giving access to load following service with equitable
comparability for the broad spectrum of customers BPA is expected to
serve. Factoring may also be purchased as a staple-on service to a core
Block product.

**Timing and Duration of Purchase Commitment:**

The term of this service shall be coterminous with that of the core
product purchased. When purchased as a staple on service to the Firm
Block product however, the customer will have the option of adding the
Factoring Service for all or a portion of the purchase period of the
Firm Block product, at the time of signing a Subscription Contract.

**Product Description:**

For purposes of the core Subscription products, the term factoring
refers to the service of shaping a given quantity of MWhs among hours of
a period to follow load. (The term 'periods' refers to the HLH & LLH
periods of rate seasons, e.g., calendar months and years.) There are two
types of Factoring: Within-Day, which measures the amount of energy
moved within each diurnal period of a day and Within-Month, which
measures the amount of energy moved between the days of each month. In
this context, factoring is therefore an 'energy-neutral' service.
Factoring Service is distinct from the Load Variance component of the
Full and Actual Partial Service products. Load Variance meets the plus
or minus uncertainty in cumulative monthly MWh load, such as the
variance due to temperature-related power consumption, or changing
electric load within a customer's system (for reasons other than
annexations, retail access choices, or service to New Large Single
Loads).

When purchased as a staple-on service to a core Block product, the
Factoring Service remains energy-neutral. Block with Factoring offers
the purchaser access to a posted rate service for shaping Block energy
to its actual load to the extent of Block energy purchased. It does not
increase or decrease the amount of Block billing energy or the amounts
the customer is entitled to receive at the posted price. When purchased
as a staple-on service to a core Block product, monthly resource
capability must be declared for the purchase period consistent with the
resource declaration parameters in the detailed description for the
Actual Partial Service product. A Block customer with declared
dispatchable resources would be subject to the same billing and excess
service charges as an Actual Partial customer with dispatchable
resources.

+----------------------+-----------------------------------------------+
| ***Core Subscription | ***Block Partial Service***                   |
| Product***           |                                               |
+----------------------+-----------------------------------------------+
| **General**          | The Block Partial Service standard product is |
|                      | a core Subscription product. It is available  |
|                      | to purchasers who have a right to purchase    |
|                      | power from BPA to meet their net              |
|                      | requirements.                                 |
|                      |                                               |
|                      | The purchase amounts for all HLH and LLH      |
|                      | periods for the term are set at the time of   |
|                      | contract signature.                           |
|                      |                                               |
|                      | Complete details are in the attached pages.   |
+----------------------+-----------------------------------------------+
| **Availability**     | This product is intended for customers who    |
|                      | have a right to purchase from BPA under       |
|                      | section 5(b) of the Regional Act.             |
+----------------------+-----------------------------------------------+
| **Purchase Period**  | The purchase period is 3 to 20 years,         |
|                      | beginning October 1, 2001.                    |
+----------------------+-----------------------------------------------+
| **Transmission and   | Transmission delivery and ancillary services  |
| Ancillary Services** | are not included in this product.             |
+----------------------+-----------------------------------------------+
| **Load Variance**    | Not included.                                 |
+----------------------+-----------------------------------------------+
| **Load Growth**      | HLH and LLH block amounts may increase over   |
|                      | the term of commitment based on the           |
|                      | customer\'s net requirement. (Refer to BPA's  |
|                      | 2002 Proposed Wholesale Power Rate Schedule,  |
|                      | Section II, S.)                               |
+----------------------+-----------------------------------------------+
| **Linkages**         | The Block Partial Service product may be      |
|                      | combined with one of the following:           |
|                      |                                               |
|                      | -   Factoring Service                         |
|                      |                                               |
|                      | -   Shaping Capacity                          |
|                      |                                               |
|                      | -   Slice\*                                   |
|                      |                                               |
|                      | \*\* See Slice product description for        |
|                      | details on allowable combinations of Block    |
|                      | and Slice.                                    |
+----------------------+-----------------------------------------------+
| # Rates              | See Core Product Billing Factors in the       |
| and Billing Factors  | catalog, Appendix B. Refer to BPA's 2002      |
|                      | Proposed Wholesale Power Rate Schedule for    |
|                      | applicable posted rates.                      |
+----------------------+-----------------------------------------------+
| **Transmission       | Transmission Losses are included in this      |
| Losses**             | product.                                      |
+----------------------+-----------------------------------------------+

#  Detailed Description: Block Partial Service

**General and Availability:**

This standard product is a core Subscription product that is available
to purchasers who have a right to purchase their requirements from BPA.
This standard product will be sold under a posted rate schedule.

**Timing and Duration of Purchase Commitment:**

To purchase this standard product at unadjusted posted rates, the
purchaser agrees to its purchase amounts for all HLH and LLH periods
during the term of commitment at the time of contract signature, and in
any case, not later than the closing date for BPA's Subscription
process. The term 'periods' refers to the HLH and LLH periods of
calendar months and years.

**Product Description:**

**Purchase Amounts:**

1.  This core product is available to serve net requirements under
    section 5b1 of Regional Act. Therefore, the HLH and LLH period
    purchase amounts that may be subscribed to per year and month may
    not exceed the reasonably estimated differences between the
    customer\'s load and the capabilities of the customer's firm peaking
    and energy resources for each of the years of commitment. The
    resource capabilities for the years of the term of commitment will
    reflect, to the extent appropriate, permanent loss of resource
    consistent with BPA's published policy on determining net
    requirements. The resource capabilities will be determined
    consistent with the Resource Declaration Parameters listed under the
    Actual Partial Service Product. The section below, \"HLH and LLH
    Block Distribution among Years and Months\" highlights the options
    available under the Block Product.

2\. During the term of commitment, the customer will give BPA notice of
load changes that may reduce its net requirement, consistent with the
procedures specified in BPA's published policy on Determining Net
Requirements. If such notice shows that the customer's net requirement
has decreased, the remaining Block purchase amounts will be reduced
accordingly. Billing for the block purchase amounts will be based on the
terms of the customer\'s contract and any mitigation measures purchased.

3\. Customers may elect to purchase an amount which is less than the
maximum indicated under point 1 above. However, the standard product
requires that such amount be expressed as a percent reduction, with the
same percentage applied to all years, months and diurnal periods of the
purchase commitment period. Reductions would not be targeted to only
certain years, months or diurnal periods.

Detailed Description: Block Partial Service With Shaping Capacity

**General and Availability**

Shaping Capacity is a core Subscription product available only to
purchasers of Block Partial service for HLH blocks. This standard
product is sold under a posted rate schedule. If a customer's HLH net
energy requirement exceeds its net peak requirement, Block With Shaping
Capacity may not be purchased at posted rates.

**Timing and Duration of Purchase Commitment**

To purchase this standard product at unadjusted posted rates, the
purchaser must fix the desired purchase amounts of Shaping Capacity for
all HLH block purchase periods of the term of commitment prior to
contract signing, not later than the closing date for BPA's Subscription
process. Shaping Capacity may be selected by the customer for the HLH
periods of less than all months of a year. The term 'periods' refers to
the HLH periods of rate seasons, e.g., calendar months and years. (See
Maximum Purchase Amounts section, next page).

**Product Description**

Block with Shaping Capacity allows a customer a predetermined monthly MW
amount above and below the flat HLH Block to shape the energy. It is
pre-scheduled, and energy neutral within each HLH period.

Monthly demand limits are determined before contract signing. The
customer declares the monthly demand levels for each month and year of
the contract term subject to those limits.

The use of Shaping Capacity is energy neutral within each day. For the
HLH period of a day, the sum of the differences between each hour's
schedule and the HLH Block aMW amount must be zero.

The lower MW boundary is equal to the amount of Shaping Capacity
purchased above the flat block.

This product is prescheduled only. Prescheduling will be consistent with
BPA's power scheduling procedures.

Block With Shaping Capacity is not subject to factoring checks against
total system load.

Because the PF demand charge is only applicable to billing demands set
during HLH, the Shaping Capacity product availability is limited to
shaping HLH block energy. Consistent with the definition of BPA Rate
HLH, the product is usable within HLH, Monday through Saturday.

LLH shaping capacity is available through bilateral negotiation under
the FPS rate schedule. Customers may negotiate such additional purchase
amounts with BPA, subject to availability and under the then-applicable
FPS rate schedule.

This product may not be combined with Actual Partial Service or Slice.

Customers wishing to purchase more than the maximum amounts may
negotiate such additional purchase amounts with BPA, subject to
availability and under the then-applicable FPS rate schedule.

1.  The customer may elect to purchase less than its maximum entitlement
    to additional capacity for HLH blocks. In the above example, since
    the customer is entitled to 1 MW to 7 MW of additional capacity, it
    could elect to purchase only 5 MW.

**Graph 1 - Example of 20 MW Block With 5 MW Shaping Capacity**

![](media/image2.wmf){width="5.999305555555556in"
height="4.341666666666667in"}

## Scheduling Provisions

The customer will submit preschedules in accordance with BPA power
scheduling procedures.