Broker business is highly competitive but if you can distinguish yourself by bringing in a unique service such as packaging onsite solar and battery storage, you can get traction. Battery storage allows the customer to avoid high price period and arbitrage the market by charging during off peak and discharging during the on peak. It also offers reliability benefits during system outages and brownouts. The key is finding a supplier that passes the benefits of the arbitrage to you and the customer. Most rate structures in the deregulated markets now a days seem to be fixed pricing. Battery plus PV lends itself well to index pricing. In ERCOT for example, Griddy offers access to the wholesale market. The solar generation in addition to a well-managed storage operation can bring a lot of value to the customer.