West Virginia's interconnection standards include two levels of review. The qualifications and application fees for each level are as follows:
- Level 1 applies to certified, inverter-based systems with a rated capacity of 25 kilowatts (kW) or less. The maximum application fee for Level 1 applicants is $30.
- Level 2 applies to certified systems with a capacity of 2 MW or less that do not meet the criteria for inclusion in Level 1. The maximum application fee is $50 plus $1 per kW of capacity.
The rules use IEEE 1547 as the technical standard of evaluation. The rules specify the technical screens which may be applied to applications at each level of review as well as time limits for different stages of the evaluation process. Application forms and interconnection agreements are standardized.
Customer-generators must maintain $100,000 general liability for systems with nameplate capacity of 50 kW or less, $500,000 for systems with nameplate capacity of greater than 50 kW to 500 kW, and $1 million for systems with name plate capacity greater than 500 kW. Utilities may not require customers to install an external disconnect switch for inverter-based, certified systems 25 kW or less.