1. Build a module that extends loan product definition to include specific physical product ordering - e.g. a clean energy loan associated with a specific solar product. Create a daily batch process to send data in JSON or XML to appropriate third party system (e.g. MEC Tracker). Extend this to include "down payments" on the product purchase - i.e. only partially financed.
2. Build a supplier ordering/invoice & financial reconciliation process and transfer funds directly to "Supplier Account" upon fulfillment of order.
3. Create reports on aging of orders, fulfillment timing, and geographic spread.

MFIs become more capable of integrating with third party systems for management of deliveries, after-sales service, and carbon tracking.

1. Create a pre-paid account mechanism as an account type or account option in Mifos (perhaps extending existing classes), zero fees.
2. Create a new API for consuming pre-paid account balances.  
3. Create a simple external model that mimics consumption by a household on a daily basis - imagined as a set of data received from solar panel (watts used, time of day, volts present).  
4. Load up pre-paid account by account transfer in P2P interface (my phone to your account) or via trusted agent - i.e. trusted agent receives cash and loads account on Mifos.

Providers of pay-as-you-go solar can use MIFOS for their operations. MFIs can become such providers.