Welcome to the
Vendor Portal

Here you can find forms and information you need:    

  • To make changes to existing vendor profile
  • Check status of invoices and payments
  • Request for statement reconciliation

Contract Terms and Conditions

Forms to make changes to existing profile and vendor information

Change your existing vendor profile such as Name, Address, Contact information, etc.
Change Bank information
Change W-8/W-9 information

Invoice Inquiries

Look up Invoice and Payment status or request statement reconciliation

Invoicing Instructions

Pattern Energy Group LP and its affiliates have a centralized receiving and processing system for all invoices. Follow all steps to ensure prompt processing and avoid payment delays.

Step 1: Legal Entity and Description of Work

All invoices must be addressed to the correct legal entity for which you are providing services and a clear description of the project for which you are billing.

  • The type of work performed must be included on each invoice (e.g., material number, description of the Products and/or Services, quantities, unit price, freight charges, and totals), and project descriptions such as “miscellaneous” or “various” are not acceptable.  Please contact the person at Pattern who engaged your services if you are unsure what description must be used.
  • The Seller is responsible for any and all taxes and import duties unless the Buyer has expressly assumed in writing the obligation to pay such costs. 
Step 2: Payment term

Seller will issue an invoice within ten (10) days following the end of the month in which the Products or Services are delivered.

Buyer shall have no liability for payment of any invoices which are not issued within the foregoing time requirement.  Each invoice will be due and payable forty-five (45) days following its receipt by Buyer or required by agreement.

Step 3: Invoice and PO

Submit only one invoice per project (i.e., do not bill for multiple projects or Purchase Orders (PO) per invoice).

Step 4: Unique Invoice Number

Invoices must be assigned with a unique invoice number. PO Number and dates of service must be clearly specified on the invoice. If you don’t know your PO Number, request a copy from your contact at Pattern who engages you for services before submitting the invoice. Submit all invoices for payment in PDF format via email:
For US and Mexico invoices, Email Us
U.S. Terms and Conditions »
For Canadian invoices, Email Us
Canadian Terms and Conditions » 

  • invoice submissions inboxes for are not monitored for inquiries. Send Inquiries directly to Accounts Payable. Click Here to email.

Invoices can also be mailed to:

[Name of Company and/or Related Project Entity]
 c/o Pattern Energy Group Services LP
Attention: Accounts Payable  
1088 Sansome St.
San Francisco, CA 94111

FAQs

When do I get paid via ACH?

ACH’s are usually processed every Wednesday and value dated plus three days. Typically, customers should receive the remittance in the bank account on the value date. The value date can be found in the remittance email notification.

I am in receipt of a check that I no longer require. What is the process of returning the check?

The check needs to be mailed back to the address below with an explanation why it’s no longer required. After we review it, we will void the check and cancel your invoice. Please ensure to include your contact information in case we need more information.
Pattern Energy Group Services LP
Attn: Accounts Payable Dept
1088 Sansome St
San Francisco, CA 94111

How do I find out if a payment has been issued for an invoice?

Invoice and payment status including details such as payment date and amount can be searched anytime in the Vendor Portal. Please visit:
Pattern Energy’s Vendor Portal »

If you need additional assistance, please contact us by completing the form in the Vendor Portal site and select option “For any questions or guidance” on the bottom of the page.

Where should I submit invoices for processing?

Invoices in PDF format should be submitted to the following email addresses:

For U.S. and Mexico invoices, Email Us
For Canadian invoices, Email Us

Above inboxes are not monitored for inquiries. Inquiries should be sent directly to Email Us. (Please note this is for existing vendor use only. We do not review or respond to solicitations or new vendor enquiries submitted to this email.) 

How do I receive a copy of the Purchase Order?

Contact the person at Pattern who engaged your services.

How do I get information on invoice/payment status?

Invoice and payment status including details such as Payment date and amount can be searched anytime in the Vendor Portal. Visit the Invoice Inquiry form to request the information. If you need additional assistance, please review the How to Use This Portal page.

Where can I find my vendor number?

You can search your Vendor Number via Invoice Inquiry form. You will be required to provide some information. If you need additional assistance, please review the How to Use This Portal page.

When will my invoice get paid?

Invoices are typically paid based on the due date. The vendor should receive payments before the invoice due date. ACH’s are usually processed every Wednesday and value dated three business days. Typically, customers should receive funds in the bank account on the value date. Note that the posting date also varies with vendor’s banks when payments are posted.

I received payment via ACH. How can I find out which invoice to apply payment to?

If you received an ACH remittance, you should have received an email notification (sent to email address in the vendor packet you provided to us) with Payment Advice that contains Invoice details. Also, you can search our vendor portal for this information. Go to “Invoice Inquiry,” then go to the “Search by Payment Received” section on the bottom of the page.

Who do I contact if I have any questions regarding payment?

For questions regarding payment of your bills, contact Accounts Payable Click Here, or call +1 (415) 283-4000.

My invoice was rejected for Incorrect Billing Entity, so what do I do?

Revise your invoice with the requested correct billing entity and resubmit to one of the following email addresses:
For US and Mexico invoices, Email Us
For Canadian invoices, Email Us

My invoice was rejected for Missing PO reference, so what do I do?

Revise your invoice with the requested PO# and resubmit to one of the following email addresses. If you don’t know the PO#, send a request to your Pattern contact to provide you with this information.

For U.S. and Mexico invoices, Email Us
For Canadian invoices, Email Us

Do I need to submit a completed W-9 form?

Yes, the W-9 form is required information for all U.S. vendors. A Federal Tax Identification or Social Security number is required to comply with Federal Regulations and tax reporting requirements. The vendor information must match the W-9 form name(s). Foreign vendors doing business might be required to complete a W-8 form.

Do I need to submit a voided check for ACH?

Yes, a voided check is required information for setting up ACH to ensure accuracy of bank information input. If a voided check is not available, provide a signed ACH bank instruction on the company’s letterhead or payment instruction from your bank.

What is Pattern’s standard payment term?

Pattern’s standard payment term is net 45 days

What is Pattern’s preferred payment method?

Pattern’s preferred payment method is ACH where funds get automatically deposited to your provided bank information.

How long is the turnaround time for setting up a vendor?

Turnaround time for setting up a vendor takes 24‒48 hours after all required information is received. Submission of incomplete documents will cause delays.

How long does it take for the check to be delivered?

Check payment may take 5‒7 days for delivery. Delays may occur due to the Covid-19 pandemic. We encourage our vendors to sign up to ACH for faster turnaround time and to receive payments automatically.

Do I need to provide swift code for wire payment?

Yes, swift code is required information for wire payment. All wire payments will require wire instruction from your bank. Wire payment will be granted on an exceptional basis.

Is my banking information secured?

Yes, your banking information is sensitive information and it is in our best interest to keep all of your information safe and secured.

How do I submit request to update my vendor profile information?

Use the below links to update and change information

Change to new Company name and new Tax ID. Please send request along with new details Contact Form >>

How do I request for vendor reactivation?

As part of Pattern AP’s best practices, we deactivate vendors with no payment activity in the last 18 months. If you need to reactivate your account, you need to fill out new forms to ensure we have the most current information. Use the below links to update and change information:

I received an email request from Pattern to make corrections on my vendor forms, but the email link provided expired. How can I obtain new link?

Send your request for a new link to Accounts Payable Click Here. Once your request has been received, a new email with link will be sent that will allow you to update vendor information.

How do I use the Vendor Portal?

Select “Invoice inquiry.” When a new window opens, select option “How to Use this Portal” located on left-hand menu of the page. You will find information on how to search invoice status, vendor number, etc.

I do not have a voided check. What other information can I provide to sign up to ACH?

A signed ACH instruction with complete routing number and bank account number written on your company’s letterhead or bank payment instruction is acceptable in lieu of a voided check.

I received an email to make a correction on my Vendor form, so what do I need to do?

If vendor forms are missing information, you will receive an email with a link to provide missing information. Please make the requested correction using the link before it expires in seven business days.

How do I make changes to my bank account?

To update your bank account, use this bank information form:
Vendor Authorization Form – ACH/EFT Setup >>

What information do I need to ensure I am set up successfully as a vendor successfully with Pattern?

When you receive the vendor onboarding instructions, you will be asked to complete all required information (vendor forms, W9 forms and upload voided check). If anything is missing, you will be notified via email to complete or provide missing information.

I forgot to attach a voided check, so what do I do?

You will be notified via email with a link to provide a copy of your voided check.

How do I know if my vendor has been created?

Once your vendor information has been successfully entered to our system and approved, you will receive an automated email confirming completion of vendor registration and vendor account number for your reference.

How do I submit a request to set up a new vendor?

To be set up in our system as a new vendor, contact the person at Pattern who engaged you for services. Your Pattern contact will initiate the process on your behalf. Once your request has been received, you will receive an email with a link to fill out online registration forms. Please make sure to provide correct information as well as necessary documents to avoid delays in setting up your vendor account.

Who do I contact for general vendor account inquiry?

You can reach our Vendor Setup Team by sending your inquiry to Accounts Payable Click Here

What if our organization has changed business its name, what is the requirement?

For a business name change with same the Federal Tax ID#, please go to our Pattern Energy’s Vendor Portal site and select option “To make changes to existing vendor profile” to fill out a form for amended business name.

For a business name change with a different Federal Tax ID#, a new vendor account ID must be created. Please go to Pattern Energy’s Vendor Portal site, select option “For new Company name & new Tax ID changes” to request for registration forms.

If any other scenario from mentioned above, please send your inquiry to Accounts Payable Click Here

When completing the W-9 form, my business is a single-member LLC or sole proprietor owned by me and disregarded for U.S. tax purposes. What should I enter on Section or line#1 and Section or line#2?

Enter your individual name on section/line#1, business name on section/line# 2 and check the box for “individual/Sole Proprietor/Single-Member LLC” on section/line#3.

Our organization has been certified by IRS as a tax exempt, where will I enter the information in the W9 form?

On Section 3 of the W-9 form, check the box for “Other,” select the exempt tax type on the dropdown arrow and select the appropriate type based on your organization.

Thank you for supporting the efficiency of our payment procedures.  For questions regarding payment of your bills, please contact Accounts Payable Click Here, or call +1 (415) 283-4000.

For any questions or guidance, please contact us HERE

Please note this content, portal and contact information is for existing vendor use only. Solicitations or new vendor enquiries submitted on this portal or to these emails will not be reviewed.