Energy Storage:

2018 legislation directed the CO PUC to establish by 2019, mechanisms for utilities to procure energy storage system (HB18-1270). CO PUC adopted rules requiring utilities to include energy storage in their electric resource planning processes. Also, 2018 legislation established the right for electric consumers to use energy storage systems and directed the PUC to develop interconnection rules for customer-sited energy storage systems (SB18-009). Subsequent 2019 legislation approved to requiring utilities to produce and file distribution system plans that include energy storage.

Reference:
Pacific Northwest National Laboratory Energy Storage Policy Database
https://energystorage.pnnl.gov/regulatoryactivities.asp

Colorado – Distributed Energy Policy – Net Metering
California – Energy Storage Policy