We use Transcepta for electronic document processing with our suppliers. Transcepta allows us to electronically transmit purchase orders and change orders to you. It also allows us to receive order acknowledgements and invoices from you. This reduces paper, postage and data entry costs. It also gives you quick access to orders, invoices and payment status.
We have a focus on competitive costs, and suppliers can play a key role in helping us in this area. We are very interested in working with various suppliers so that our business reflects the communities we proudly serve. We encourage all businesses to engage with us.
If you are a current supplier, or are interested in becoming an Alliant Energy supplier, please create a supplier profile in the Alliant Energy Supplier Registration Tool and click 'Registration' in the top right corner. Once you've finished, you should have an active account and can log in to your new account in the Alliant Energy Supplier Tool.
The following steps are required for the registration process:
We request basic contact and company information, but you also have the option to include products and services your company provides on the “Products and Services” tab. This will help Alliant Energy identify suppliers for the category being sourced.
If you are a current supplier and required to submit Tier II information, you must complete the Direct and Indirect questionnaires within the Tier II Reporting Quarterly (Alliant Energy) Portal on PowerAdvocate. This Portal should be located under your ‘Portals’ tab. If you do not currently have access to this Portal please email [email protected] or call 1-857-453-5800between 8 a.m. and 8 p.m. EST Monday - Friday.
For technical questions please email [email protected] or call 1-857-453-5800 between 8 a.m. and 8 p.m. EST Monday - Friday.
Conduct and ethics
We expect all of our suppliers to adhere to the highest level of conduct and ethics in its dealings with Alliant Energy, and when it is dealing with third parties on behalf of the Company. As such, we expect our suppliers to adhere to the Alliant Energy Code of Conduct.pdf.
Our Code requires that business dealings be fair, honest and objective. In particular, we expect that our suppliers will participate in bid processes and procurement practices in accordance with best practices. Best practices include communicating only with the named Alliant Energy representatives during contract negotiations or bid evaluation, refraining from “back door selling,” and attempts to influence Alliant Energy employees or senior management in order to obtain work.
We may disqualify suppliers who engage in these activities or violate the Alliant Energy Code of Conduct from continuing business with Alliant Energy and from making future bids.
Supplier and contractor safety requirements
We use ISNetworld to help us objectively manage contractor safety prequalification requirements.
The majority of contractors performing physical work for Alliant Energy will be required to become subscribers to ISNetworld. Contractors performing non-physical or what we determine to be low-risk physical contract work will not be required to subscribe.
As of May 1, 2025, IPL uses an Iowa Direct Pay Permit to pay taxes directly, except for certain purchases like telecom and utility services. This is similar to WPL's process.
