the increase/ ( decrease ) in purchased power costs in 2017 , as compared to 2016 , was due primarily to the following : the decrease at cl & p was due primarily to a decrease in the price of standard offer supply associated with the gsc . the decrease at nstar electric was due primarily to lower prices associated with the procurement of energy supply , lower sales volumes and the expiration of certain purchase power agreements . the increase at psnh was due primarily to higher purchased power energy expenses that are recovered as a component of the energy service rate , and regional greenhouse gas initiative related expenses recovered in the scrc . transmission costs : included in transmission costs are charges that recover the cost of transporting electricity over high-voltage lines from generating plants to substations , including costs allocated by iso-ne to maintain the wholesale electric market . the increase/ ( decrease ) in transmission costs in 2017 , as compared to 2016 , was due primarily to the following : the increase at cl & p was primarily the result of an increase in costs billed by iso-ne that support regional grid investment , local network service charges , which reflect the cost of transmission service , and the retail transmission cost deferral , which reflects the actual costs of transmission service compared to estimated amounts billed to customers . the decrease at nstar electric was primarily the result of a decrease in the retail transmission cost deferral . this was partially offset by an increase in costs billed by iso-ne . the increase at psnh was primarily the result of increases in costs billed by iso-ne , local network service charges , and the retail transmission cost deferral . 52 operations and maintenance expense includes tracked costs and costs that are part of base distribution rates with changes impacting earnings ( non-tracked costs ) . operations and maintenance expense increased/ ( decreased ) in 2017 , as compared to 2016 , due primarily to the following : replace_table_token_38_th depreciation increased at cl & p , nstar electric and psnh in 2017 , as compared to 2016 , due primarily to higher utility plant in service balances . amortization of regulatory assets/ ( liabilities ) , net expense includes the deferral of energy supply and energy-related costs and the amortization of storm and other costs . amortization of regulatory assets/ ( liabilities ) , net increased at cl & p and decreased for both nstar electric and psnh in 2017 , as compared to 2016 , due primarily to the deferral adjustment of energy supply and energy-related costs , which can fluctuate from period to period based on the timing of costs incurred and related rate changes to recover these costs . the deferral adjusts expense to match the corresponding revenues . energy supply and energy-related costs , which are the primary drivers of amortization , are recovered from customers in rates and have no impact on earnings . energy efficiency programs expense includes costs for various state policy initiatives and are recovered from customers in rates and have no impact on earnings . energy efficiency programs expense decreased in 2017 , as compared to 2016 , due primarily to the following : the decrease at cl & p is due primarily to a state of connecticut policy change requiring the remittance of $ 25.4 million of 2017 energy efficiency funds to the state . these amounts collected from customers were reclassified to taxes other than income taxes . the decrease at nstar electric is due to the deferral adjustment , which reflects the actual cost of energy efficiency programs compared to the estimated amounts billed to customers and the timing of the recovery of energy efficiency costs . the deferral adjusts costs to match energy efficiency revenue billed to customers . taxes other than income taxes increased in 2017 , as compared to 2016 , due primarily to the following : the increase at cl & p is due primarily to a state of connecticut policy change requiring the remittance of $ 25.4 million of 2017 energy efficiency funds to the state and higher utility plant balances , partially offset by a decrease in gross earnings taxes . gross earnings taxes are recovered from customers in rates and have no impact on earnings . the increase at nstar electric is due primarily to higher property taxes resulting from disallowed costs in the november 30 , 2017 nstar electric dpu distribution rate case decision and higher employee-related payroll taxes , partially offset by a decrease in property tax rates in boston . the increase at psnh is due to an increase in property taxes as a result of higher utility plant balances . interest expense at nstar electric decreased in 2017 , as compared to 2016 , due primarily to lower deferred regulatory interest expense ( $ 14.0 million ) , primarily as a result of the november 30 , 2017 nstar electric dpu distribution rate case decision , which allowed for a higher interest rate on carrying charges for past storm costs , partially offset by an increase in interest on long-term debt ( $ 9.6 million ) . other income , net increased in 2017 , as compared to 2016 , due primarily to the following : the increase at cl & p is due to higher afudc related to equity funds ( $ 5.9 million ) and market value changes related to the deferred compensation plans ( $ 6.3 million ) , partially offset by lower interest income ( $ 4.4 million ) . the increase at nstar electric is due to market value changes related to the deferred compensation plans ( $ 1.6 million ) , an increase in amounts related to officer life insurance policies ( $ 1.3 million ) and an increase in interest income ( $ 1.2 million ) . story_separator_special_tag 59 results of operations – the connecticut light and power company the following provides the amounts and variances in operating revenues and expense line items in the statements of income for cl & p for the years ended december 31 , 2016 and 2015 included in this annual report on form 10-k : replace_table_token_43_th ( a ) percent greater than 100 not shown as it is not meaningful . operating revenues cl & p 's retail sales volumes were as follows : replace_table_token_44_th cl & p 's operating revenues , which consist of base distribution revenues and tracked revenues further described below , increased by $ 3.3 million in 2016 , as compared to 2015. base distribution revenues increased by $ 30.1 million due to a higher rate base resulting from the 2015 pura adit settlement agreement that is being collected from customers in distribution rates ( $ 26.1 million ) and the absence of a required roe reduction , as stipulated in the pura 2014 rate case decision , recorded in 2015 ( $ 4 million ) . this increase was partially offset by the absence of the benefit recognized in 2015 in operating revenues due to the pura adit settlement agreement . fluctuations in cl & p 's sales volumes do not impact the level of base distribution revenue realized or earnings due to the pura approved revenue decoupling mechanism . cl & p 's revenue decoupling mechanism permits recovery of a base amount of distribution revenues ( $ 1.059 billion annually ) and breaks the relationship between sales volumes and revenues recognized . the revenue decoupling mechanism results in the recovery of approved base distribution revenue requirements . fluctuations in the overall level of operating revenues are primarily related to tracked revenues . tracked revenues consist of certain costs that are recovered from customers in rates through pura-approved cost tracking mechanisms and therefore have no impact on earnings . costs recovered through cost tracking mechanisms include energy supply procurement and other energy-related costs , retail transmission charges , energy efficiency program costs and restructuring and stranded cost recovery revenues . in addition , tracked revenues include certain incentives earned and carrying charges . tracked distribution revenues decreased primarily as a result of a decrease in energy supply costs ( $ 222.4 million ) driven by decreased average retail rates and lower sales volumes . partially offsetting this decrease was an increase in federally mandated congestion charges ( $ 103.0 million ) and an increase in competitive transition assessment charges ( $ 31.7 million ) . in addition , as a result of a change to the amounts collected in the system benefits charge , cl & p 's calculated rate base increased , providing an increase to distribution revenues that impacted earnings of $ 23.2 million . transmission revenues increased by $ 62.7 million due primarily to higher revenue requirements associated with ongoing investments in our transmission infrastructure and the absence in 2016 of a $ 12.5 million reserve charge recorded in 2015 associated with the march 2015 ferc roe order . 60 purchased power and transmission expense includes costs associated with purchasing electricity on behalf of cl & p 's customers . these energy supply costs are recovered from customers in pura-approved cost tracking mechanisms , which have no impact on earnings ( tracked costs ) . purchased power and transmission expense decreased in 2016 , as compared to 2015 , due primarily to the following : ( millions of dollars ) ( decrease ) /increase purchased power costs $ ( 173.1 ) transmission costs 38.5 total purchased power and transmission $ ( 134.6 ) included in purchased power costs are the costs associated with cl & p 's gsc and deferred energy supply costs . the gsc recovers energy-related costs incurred as a result of providing electric generation service supply to all customers who have not migrated to third party suppliers . the decrease in purchased power costs in 2016 , compared to 2015 , was due primarily to a decrease in the price of standard offer supply , as well as lower sales volumes . the increase in transmission costs was primarily the result of an increase in costs billed by iso-ne that support regional grid investment . operations and maintenance expense increased in 2016 , as compared to 2015 , driven by a $ 9.2 million increase in tracked costs , which have no earnings impact , that was primarily attributable to higher transmission expenses , partially offset by a $ 6.4 million decrease in non-tracked costs , which was primarily attributable to lower employee-related expenses , partially offset by higher storm restoration costs and the write-off of software design costs . depreciation increased in 2016 , as compared to 2015 , due primarily to higher utility plant in service balances . amortization of regulatory assets , net expense includes the deferral of energy supply and energy-related costs and the amortization of storm and other costs . amortization of regulatory assets , net increased in 2016 , as compared to 2015 , due primarily to the deferral adjustment of energy supply and energy-related costs , which can fluctuate from period to period based on the timing of costs incurred and related rate changes to recover these costs . the deferral adjusts expense to match the corresponding revenues . energy supply and energy-related costs , which are the primary drivers of amortization , are recovered from customers in rates and have no impact on earnings . taxes other than income taxes expense increased in 2016 , as compared to 2015 , due primarily to an increase in property taxes as a result of both an increase in utility plant balances and an increase in gross earnings taxes . gross earnings taxes are recovered from customers in rates and have no impact on earnings . interest expense decreased in 2016 , as compared to 2015 , due primarily to lower deferred regulatory interest expense (

cash totaled $ 6.0 million as of december 31 , 2017 , compared with $ 6.6 million as of december 31 , 2016. cl & p had cash flows provided by operating activities of $ 804.6 million in 2017 , compared with $ 811.5 million in 2016. the decrease in operating cash flows was due primarily to income tax payments of $ 68.8 million made in 2017 , compared to the income tax refunds of $ 73.9 million received in 2016. partially offsetting this decrease was the timing of regulatory recoveries , an increase in distribution rates due to higher rate base , and the timing of collections and payments related to our working capital items . eversource parent has a $ 1.45 billion commercial paper program allowing eversource parent to issue commercial paper as a form of short-term debt , with intercompany loans to certain subsidiaries , including cl & p . the weighted-average interest rate on the commercial paper borrowings as of december 31 , 2017 and 2016 was 1.86 percent and 0.88 percent , respectively . as of december 31 , 2017 and 2016 , there were intercompany loans from eversource parent to cl & p of $ 69.5 million and $ 80.1 million , respectively . eversource parent , and certain of its subsidiaries , including cl & p , are parties to a five-year $ 1.45 billion revolving credit facility . on december 8 , 2017 , eversource parent amended and restated the revolving credit facility .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```cash totaled $ 6.0 million as of december 31 , 2017 , compared with $ 6.6 million as of december 31 , 2016. cl & p had cash flows provided by operating activities of $ 804.6 million in 2017 , compared with $ 811.5 million in 2016. the decrease in operating cash flows was due primarily to income tax payments of $ 68.8 million made in 2017 , compared to the income tax refunds of $ 73.9 million received in 2016. partially offsetting this decrease was the timing of regulatory recoveries , an increase in distribution rates due to higher rate base , and the timing of collections and payments related to our working capital items . eversource parent has a $ 1.45 billion commercial paper program allowing eversource parent to issue commercial paper as a form of short-term debt , with intercompany loans to certain subsidiaries , including cl & p . the weighted-average interest rate on the commercial paper borrowings as of december 31 , 2017 and 2016 was 1.86 percent and 0.88 percent , respectively . as of december 31 , 2017 and 2016 , there were intercompany loans from eversource parent to cl & p of $ 69.5 million and $ 80.1 million , respectively . eversource parent , and certain of its subsidiaries , including cl & p , are parties to a five-year $ 1.45 billion revolving credit facility . on december 8 , 2017 , eversource parent amended and restated the revolving credit facility .
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 Suspicious Activity Report : the increase/ ( decrease ) in purchased power costs in 2017 , as compared to 2016 , was due primarily to the following : the decrease at cl & p was due primarily to a decrease in the price of standard offer supply associated with the gsc . the decrease at nstar electric was due primarily to lower prices associated with the procurement of energy supply , lower sales volumes and the expiration of certain purchase power agreements . the increase at psnh was due primarily to higher purchased power energy expenses that are recovered as a component of the energy service rate , and regional greenhouse gas initiative related expenses recovered in the scrc . transmission costs : included in transmission costs are charges that recover the cost of transporting electricity over high-voltage lines from generating plants to substations , including costs allocated by iso-ne to maintain the wholesale electric market . the increase/ ( decrease ) in transmission costs in 2017 , as compared to 2016 , was due primarily to the following : the increase at cl & p was primarily the result of an increase in costs billed by iso-ne that support regional grid investment , local network service charges , which reflect the cost of transmission service , and the retail transmission cost deferral , which reflects the actual costs of transmission service compared to estimated amounts billed to customers . the decrease at nstar electric was primarily the result of a decrease in the retail transmission cost deferral . this was partially offset by an increase in costs billed by iso-ne . the increase at psnh was primarily the result of increases in costs billed by iso-ne , local network service charges , and the retail transmission cost deferral . 52 operations and maintenance expense includes tracked costs and costs that are part of base distribution rates with changes impacting earnings ( non-tracked costs ) . operations and maintenance expense increased/ ( decreased ) in 2017 , as compared to 2016 , due primarily to the following : replace_table_token_38_th depreciation increased at cl & p , nstar electric and psnh in 2017 , as compared to 2016 , due primarily to higher utility plant in service balances . amortization of regulatory assets/ ( liabilities ) , net expense includes the deferral of energy supply and energy-related costs and the amortization of storm and other costs . amortization of regulatory assets/ ( liabilities ) , net increased at cl & p and decreased for both nstar electric and psnh in 2017 , as compared to 2016 , due primarily to the deferral adjustment of energy supply and energy-related costs , which can fluctuate from period to period based on the timing of costs incurred and related rate changes to recover these costs . the deferral adjusts expense to match the corresponding revenues . energy supply and energy-related costs , which are the primary drivers of amortization , are recovered from customers in rates and have no impact on earnings . energy efficiency programs expense includes costs for various state policy initiatives and are recovered from customers in rates and have no impact on earnings . energy efficiency programs expense decreased in 2017 , as compared to 2016 , due primarily to the following : the decrease at cl & p is due primarily to a state of connecticut policy change requiring the remittance of $ 25.4 million of 2017 energy efficiency funds to the state . these amounts collected from customers were reclassified to taxes other than income taxes . the decrease at nstar electric is due to the deferral adjustment , which reflects the actual cost of energy efficiency programs compared to the estimated amounts billed to customers and the timing of the recovery of energy efficiency costs . the deferral adjusts costs to match energy efficiency revenue billed to customers . taxes other than income taxes increased in 2017 , as compared to 2016 , due primarily to the following : the increase at cl & p is due primarily to a state of connecticut policy change requiring the remittance of $ 25.4 million of 2017 energy efficiency funds to the state and higher utility plant balances , partially offset by a decrease in gross earnings taxes . gross earnings taxes are recovered from customers in rates and have no impact on earnings . the increase at nstar electric is due primarily to higher property taxes resulting from disallowed costs in the november 30 , 2017 nstar electric dpu distribution rate case decision and higher employee-related payroll taxes , partially offset by a decrease in property tax rates in boston . the increase at psnh is due to an increase in property taxes as a result of higher utility plant balances . interest expense at nstar electric decreased in 2017 , as compared to 2016 , due primarily to lower deferred regulatory interest expense ( $ 14.0 million ) , primarily as a result of the november 30 , 2017 nstar electric dpu distribution rate case decision , which allowed for a higher interest rate on carrying charges for past storm costs , partially offset by an increase in interest on long-term debt ( $ 9.6 million ) . other income , net increased in 2017 , as compared to 2016 , due primarily to the following : the increase at cl & p is due to higher afudc related to equity funds ( $ 5.9 million ) and market value changes related to the deferred compensation plans ( $ 6.3 million ) , partially offset by lower interest income ( $ 4.4 million ) . the increase at nstar electric is due to market value changes related to the deferred compensation plans ( $ 1.6 million ) , an increase in amounts related to officer life insurance policies ( $ 1.3 million ) and an increase in interest income ( $ 1.2 million ) . story_separator_special_tag 59 results of operations – the connecticut light and power company the following provides the amounts and variances in operating revenues and expense line items in the statements of income for cl & p for the years ended december 31 , 2016 and 2015 included in this annual report on form 10-k : replace_table_token_43_th ( a ) percent greater than 100 not shown as it is not meaningful . operating revenues cl & p 's retail sales volumes were as follows : replace_table_token_44_th cl & p 's operating revenues , which consist of base distribution revenues and tracked revenues further described below , increased by $ 3.3 million in 2016 , as compared to 2015. base distribution revenues increased by $ 30.1 million due to a higher rate base resulting from the 2015 pura adit settlement agreement that is being collected from customers in distribution rates ( $ 26.1 million ) and the absence of a required roe reduction , as stipulated in the pura 2014 rate case decision , recorded in 2015 ( $ 4 million ) . this increase was partially offset by the absence of the benefit recognized in 2015 in operating revenues due to the pura adit settlement agreement . fluctuations in cl & p 's sales volumes do not impact the level of base distribution revenue realized or earnings due to the pura approved revenue decoupling mechanism . cl & p 's revenue decoupling mechanism permits recovery of a base amount of distribution revenues ( $ 1.059 billion annually ) and breaks the relationship between sales volumes and revenues recognized . the revenue decoupling mechanism results in the recovery of approved base distribution revenue requirements . fluctuations in the overall level of operating revenues are primarily related to tracked revenues . tracked revenues consist of certain costs that are recovered from customers in rates through pura-approved cost tracking mechanisms and therefore have no impact on earnings . costs recovered through cost tracking mechanisms include energy supply procurement and other energy-related costs , retail transmission charges , energy efficiency program costs and restructuring and stranded cost recovery revenues . in addition , tracked revenues include certain incentives earned and carrying charges . tracked distribution revenues decreased primarily as a result of a decrease in energy supply costs ( $ 222.4 million ) driven by decreased average retail rates and lower sales volumes . partially offsetting this decrease was an increase in federally mandated congestion charges ( $ 103.0 million ) and an increase in competitive transition assessment charges ( $ 31.7 million ) . in addition , as a result of a change to the amounts collected in the system benefits charge , cl & p 's calculated rate base increased , providing an increase to distribution revenues that impacted earnings of $ 23.2 million . transmission revenues increased by $ 62.7 million due primarily to higher revenue requirements associated with ongoing investments in our transmission infrastructure and the absence in 2016 of a $ 12.5 million reserve charge recorded in 2015 associated with the march 2015 ferc roe order . 60 purchased power and transmission expense includes costs associated with purchasing electricity on behalf of cl & p 's customers . these energy supply costs are recovered from customers in pura-approved cost tracking mechanisms , which have no impact on earnings ( tracked costs ) . purchased power and transmission expense decreased in 2016 , as compared to 2015 , due primarily to the following : ( millions of dollars ) ( decrease ) /increase purchased power costs $ ( 173.1 ) transmission costs 38.5 total purchased power and transmission $ ( 134.6 ) included in purchased power costs are the costs associated with cl & p 's gsc and deferred energy supply costs . the gsc recovers energy-related costs incurred as a result of providing electric generation service supply to all customers who have not migrated to third party suppliers . the decrease in purchased power costs in 2016 , compared to 2015 , was due primarily to a decrease in the price of standard offer supply , as well as lower sales volumes . the increase in transmission costs was primarily the result of an increase in costs billed by iso-ne that support regional grid investment . operations and maintenance expense increased in 2016 , as compared to 2015 , driven by a $ 9.2 million increase in tracked costs , which have no earnings impact , that was primarily attributable to higher transmission expenses , partially offset by a $ 6.4 million decrease in non-tracked costs , which was primarily attributable to lower employee-related expenses , partially offset by higher storm restoration costs and the write-off of software design costs . depreciation increased in 2016 , as compared to 2015 , due primarily to higher utility plant in service balances . amortization of regulatory assets , net expense includes the deferral of energy supply and energy-related costs and the amortization of storm and other costs . amortization of regulatory assets , net increased in 2016 , as compared to 2015 , due primarily to the deferral adjustment of energy supply and energy-related costs , which can fluctuate from period to period based on the timing of costs incurred and related rate changes to recover these costs . the deferral adjusts expense to match the corresponding revenues . energy supply and energy-related costs , which are the primary drivers of amortization , are recovered from customers in rates and have no impact on earnings . taxes other than income taxes expense increased in 2016 , as compared to 2015 , due primarily to an increase in property taxes as a result of both an increase in utility plant balances and an increase in gross earnings taxes . gross earnings taxes are recovered from customers in rates and have no impact on earnings . interest expense decreased in 2016 , as compared to 2015 , due primarily to lower deferred regulatory interest expense (

