diff --git a/src/powerflow_algorithm/BaseDCAlgo.tpp b/src/powerflow_algorithm/BaseDCAlgo.tpp
index 36c456b..0352570 100644
--- a/src/powerflow_algorithm/BaseDCAlgo.tpp
+++ b/src/powerflow_algorithm/BaseDCAlgo.tpp
@@ -115,8 +115,10 @@ bool BaseDCAlgo<LinearSolver>::compute_pf(const Eigen::SparseMatrix<cplx_type> &
 
     // solve for theta: Sbus = dcY . theta (make a copy to keep dcSbus_noslack_)
     RealVect Va_dc_without_slack = dcSbus_noslack_;       
-    std::cout << "\t\tBaseDCAlgo.tpp: dcYbus_noslack_: " << dcYbus_noslack_.coeffs().maxCoeff() << std::endl;  // TODO DEBUG WINDOWS
-    std::cout << "\t\tBaseDCAlgo.tpp: Va_dc_without_slack: " << Va_dc_without_slack.lpNorm<Eigen::Infinity>() << std::endl;  // TODO DEBUG WINDOWS
+    std::cout << "\t\tBaseDCAlgo.tpp: dcYbus_noslack_ (max): " << dcYbus_noslack_.coeffs().maxCoeff() << std::endl;  // TODO DEBUG WINDOWS
+    std::cout << "\t\tBaseDCAlgo.tpp: dcYbus_noslack_ (sum): " << dcYbus_noslack_.coeffs().abs().sum() << std::endl;  // TODO DEBUG WINDOWS
+    std::cout << "\t\tBaseDCAlgo.tpp: Va_dc_without_slack (inf norm): " << Va_dc_without_slack.lpNorm<Eigen::Infinity>() << std::endl;  // TODO DEBUG WINDOWS
+    std::cout << "\t\tBaseDCAlgo.tpp: Va_dc_without_slack (l1 norm): " << Va_dc_without_slack.lpNorm<1>() << std::endl;  // TODO DEBUG WINDOWS
     ErrorType error = _linear_solver.solve(dcYbus_noslack_, Va_dc_without_slack, has_just_been_factorized);
     if(error != ErrorType::NoError){
         err_ = error;