Standard Offer Archive National Grid Standard Offer Service Tariff 1/16- 12/18 Month Residential (A-16, A-60,) Commercial (G-02,C-06,S-06,S-10,and S-14) Industrial (G-32, G-62, B-32, B-62, and X-01) Fixed Price Option Variable Option (Cents/kWh) (Cents/kWh) (Cents/kWh) (Cents/kWh) January 2016 8.901 8.327 13.814 11.199 February 2016 8.901 8.327 13.500 10.954 March 2016 8.901 8.327 9.741 8.308 April 2016 8.679 8.364 7.218 5.018 May 2016 8.679 8.364 6.238 4.468 June 2016 8.679 8.364 6.554 4.673 July 2016 8.679 8.364 6.584 5.035 August 2016 8.679 8.364 6.165 4.731 September 2016 8.679 8.364 5.828 4.001 October 2016 8.179 8.396 5.998 3.947 November 2016 8.179 8.396 6.703 4.626 December 2016 8.179 8.396 8.287 6.416 January 2017 8.179 8.396 10.722 8.474 February 2017 8.179 8.396 10.483 8.345 March 2017 8.179 8.396 8.010 5.677 April 2017 6.228 6.156 5.098 4.814 May 2017 6.228 6.156 4.512 4.336 June 2017 6.228 6.156 6.640 5.514 July 2017 6.228 6.156 6.910 6.554* August 2017 6.228 6.156 6.855 6.398* September 2017 6.228 6.156 6.461 5.926* October 2017 9.515 9.350 6.969 5.264 November 2017 9.515 9.350 7.802 6.046 December 2017 9.515 9.350 9.201 8.011 January 2018 9.515 9.350 11.527 10.522 February 2018 9.515 9.350 11.585 10.204 March 2018 9.515 9.350 8.827 7.567 April 2018 8.486 8.190 7.842 5.913 May 2018 8.486 8.190 7.301 5.396 June 2018 8.486 8.190 8.450 6.774 July 2018 8.486 8.190 8.514 7.366 August 2018 8.486 8.190 8.417 7.343 September 2018 8.486 8.190 8.453 6.917 October 2018 10.990 10.990 9.628 7.737 November 2018 10.990 10.990 10.030 8.096 December 2018 10.990 10.990 11.813 10.668 National Grid Standard Offer Service Tariff 1/13- 12/15 Month Residential (A-16, A-60,) Commercial (G-02,C-06,S-06,S-10,and S-14) Industrial (G-32, G-62, B-32, B-62, and X-01) Renewable Energy Standard Charge Fixed Price Option Variable Option (Cents/kWh) (Cents/kWh) (Cents/kWh) (Cents/kWh) (Cents/kWh) January 2013 6.935 6.833 8.582 8.662 0.253 February 2013 6.935 6.833 8.149 8.082 0.253 March 2013 6.935 6.833 6.373 5.955 0.253 April 2013 6.815 6.729 5.942 5.252 0.512 May 2013 6.815 6.729 5.551 4.785 0.512 June 2013 6.815 6.729 5.783 5.590 0.512 July 2013 6.567 6.950 6.984 6.502 0.512 August 2013 6.567 6.950 6.793 6.178 0.512 September 2013 6.567 6.950 6.102 5.426 0.512 October 2013 6.567 6.950 6.314 4.444 0.512 November 2013 6.567 6.950 6.956 5.312 0.512 December 2013 6.567 6.950 8.672 8.924 0.512 January 2014 8.372 8.564 12.188 11.447 0.512 February 2014 8.372 8.564 12.062 11.215 0.512 March 2014 8.372 8.564 7.831 6.768 0.512 April 2014 8.682 8..902 6.678 8.014 0.480 May 2014 8.682 8.902 6.220 6.395 0.480 June 2014 8.682 8.902 6.724 8.090 0.480 July 2014 7.879 8.801 8.526 8.299 0.480 August 2014 7.879 8.801 8.129 7.574 0.480 September 2014 7.879 8.801 7.049 6.645 0.480 October 2014 7.879 8.801 7.085 5.319 0.480 November 2014 7.879 8.801 9.329 7.067 0.480 December 2014 7.879 8.801 13.134 14.105 0.480 January 2015 10.248 11.659 20.347 20.340 0.480 February 2015 10.248 11.659 19.809 20.388 0.480 March 2015 10.248 11.659 12.422 12.105 0.480 April 2015 10.111 11.568 7.219 5.864 0.294 May 2015 10.111 11.568 6.049 5.167 0.294 June 2015 10.111 11.568 7.304 5.951 0.294 July 2015 10.111 8.691 7.972 6.832 0.294 August 2015 10.111 8.691 7.582 6.125 0.294 September 2015 10.111 8.691 6.936 5.504 0.294 October 2015 10.111 8.691 7.092 5.656 0.294 November 2015 10.111 8.691 9.254 7.234 0.294 December 2015 10.111 8.691 13.830 10.248 0.294 National Grid Standard Offer Service Tariff 4/11- 6/14 Month Residential (A-16, A-60,) Commercial (G-02,C-06,S-06,S-10,and S-14) Industrial (G-32, G-62, B-32, B-62, and X-01) Renewable Energy Standard Charge Fixed Price Option Variable Option (Cents/kWh) (Cents/kWh) (Cents/kWh) (Cents/kWh) (Cents/kWh) April 2011 6.902 7.030 7.175 6.370 (0.031) May 2011 6.902 7.030 7.011 6.377 (0.031) June 2011 6.902 7.030 6.731 6.250 (0.031) July 2011 6.902 7.030 7.120 6.495 (0.031) August 2011 6.902 7.030 7.174 6.663 (0.031) September 2011 6.902 7.030 6.788 6.718 (0.031) October 2011 6.902 7.030 6.909 6.088 (0.031) November 2011 6.902 7.030 7.009 6.373 (0.031) December 2011 6.902 7.030 7.343 7.603 (0.031) January 2012 7.589 7.412 8.704 8.604 (0.031) February 2012 7.589 7.412 8.434 7.990 (0.031) March 2012 7.589 7.412 7.022 6.340 (0.031) April 2012 7.629 7.556 6.942 4.535 0.253 May 2012 7.629 7.556 6.856 4.477 0.253 June 2012 7.629 7.556 6.716 4.088 0.253 July 2012 6.674 5.969 5.993 4.446 0.253 August 2012 6.674 5.969 5.959 4.447 0.253 September 2012 6.674 5.969 5.590 4.507 0.253 October 2012 6.674 5.969 5.646 4.598 0.253 November 2012 6.674 5.969 5.866 4.748 0.253 December 2012 6.674 5.969 6.846 5.799 0.253 January 2013 6.935 6.833 8.582 8.662 0.253 February 2013 6.935 6.833 8.149 8.082 0.253 March 2013 6.935 6.833 6.373 5.955 0.253 April 2013 6.815 6.729 5.942 5.252 0.512 May 2013 6.815 6.729 5.551 4.785 0.512 June 2013 6.815 6.729 5.783 5.590 0.512 July 2013 6.567 6.950 6.984 6.502 0.512 August 2013 6.567 6.950 6.793 6.178 0.512 September 2013 6.567 6.950 6.102 5.426 0.512 October 2013 6.567 6.950 6.314 4.444 0.512 November 2013 6.567 6.950 6.956 5.312 0.512 December 2013 6.567 6.950 8.672 8.924 0.512 January 2014 8.372 8.564 12.188 11.447 0.512 February 2014 8.372 8.564 12.062 11.215 0.512 March 2014 8.372 8.564 7.831 6.768 0.512 April 2014 8.682 8..902 6.678 8.020 0.480 May 2014 8.682 8.902 6.220 6.401 0.480 June 2014 8.682 8.902 6.724 8.096 0.480 ___________________________________________________________________ Summary of National Grid's Standard Offer January 2010-March 2011 As of January 1, 2010, the way National Grid procures electricity for residential and commercial customers has changed (see notes below). Month Small Customer (A-16, A-60, C-06, S-10, S-14) Large C&I (G-02, B-32, G-32, B-62, G-62, and X-01) Renewable Energy Standard Charge *See note at bottom (Cents/kWh) (Cents/kWh) (Cents/KWh) January 2010 9.2 7.891 .093 February 2010 9.2 8.138 .093 March 2010 9.532 8.344 .123 April 2010 9.532 7.939 .123 May 2010 9.532 7.796 .123 June 2010 9.532 7.750 .123 July 2010 9.532 7.019 .123 August 2010 9.532 7.372 .123 September 2010 9.532 6.830 .123 October 2010 9.366 6.901 .123 November 2010 9.366 7.148 .123 December 2010 9.366 7.571 .123 January 2011 9.366 7.224 .123 February 2011 9.366 7.089 .123 March 2011 9.366 6.247 .123 From 1998 through 2009, National Grid provided Standard Offer Service to customers who chose not to acquire electricity through a competitive supplier. Those customers who had previously contracted for electricity through a competitive supplier were offered Last Resort Service from National Grid. As of January 1, 2010, Last Resort Service has ended and customers on that rate have been transferred to Standard Offer Service. Also as of January 1, 2010, Standard Offer Customers will be divided into two groups, the Small Customer Group consisting of residential, small commercial and lighting service customers and the Large Customer Group for medium and large commercial and industrial customers. The Large Customer Group prices will be set every three months, and vary monthly to reflect market-based pricing. The prices for the Small Customer Group will be set every six months, and fixed at that price for that period. Standard Offer prices will be based on competitive bids for power. *Note: The Renewable Energy Standard charge is in addition to the Standard Offer charges for both the Small and Large customer groups. It recovers the cost incurred by National Grid for procuring renewable energy certificates, as mandated by R.I. General Law 39-26-4. Effective April 1, 2011, National Grid will procure electricity for three classes of customers: Residential (A-16 and A-60); Commercial (G-02, C-06 S-06, S-10, and S-14) ;and Industrial (G-32, G-62, B-32, B-62, and X-01) _________________________________________________________________ Summary of National Grid's Standard Offer and Last Resort Rates December 2009 back to January 2000 Month Standard Offer (1) Last Resort (2) Renewable Energy Standard Charge (3) (Cents/kWh) (Cents/kWh) (Cents/KWh) December 2009 9.2 7.765 0.093 November 2009 9.2 6.644 0.093 October 2009 9.2 6.432 0.093 September 2009 9.2 6.179 0.093 August 2009 9.2 6.738 0.093 July 2009 9.2 6.660 0.093 June 2009 9.2 6.160 0.093 May 2009 9.2 6.043 0.093 April 2009 9.2 9.883 0.093 March 2009 9.2 10.167 0.093 February 2009 9.2 11.712 0.093 January 2009 9.2 11.496 0.093 December 2008 12.4 10.360 0.084 November 2008 12.4 9.219 0.084 October 2008 12.4 10.839 0.084 September 2008 12.4 10.923 0.084 August 2008 12.4 11.997 0.084 July 15th - July 31st 2008 12.4 12.065 0.084 July 1st - July 14th 2008 9.2 12.065 0.084 June 2008 9.2 11.044 0.084 May 2008 9.2 10.370 0.084 April 2008 9.2 8.959 0.084 March 2008 9.2 9.677 0.084 February 2008 9.2 10.686 0.084 January 2008 9.2 10.658 0.084 December 2007 8.3 9.004 0.062 November 2007 8.3 8.399 0.062 October 2007 8.3 8.958 0.062 September 2007 8.3 8.513 0.062 August 2007 8.3 9.562 0.062 July 2007 8.3 9.393 0.062 June 2007 8.3 8.685 0.062 May 2007 8.3 8.344 0.062 April 2007 8.3 9.492 0.062 March 2007 8.3 11.952 0.062 February 2007 8.3 13.189 0.062 January 2007 8.3 12.882 0.062 December 2006 9.4 10.137 N/A November 2006 9.4 7.380 N/A October 2006 9.4 11.006 N/A September 2006 9.4 10.809 N/A August 2006 10.0 11.926 N/A July 2006 10.0 11.682 N/A June 2006 10.0 10.653 N/A May 2006 10.0 10.268 N/A April 2006 10.0 10.280 N/A March 2006 10.0 10.918 N/A February 2006 10.0 10.635 N/A January 2006 10.0 10.763 N/A December 2005 8.2 8.499 N/A November 2005 8.2 7.661 N/A October 2005 8.2 7.440 N/A September 2005 6.7 7.542 N/A August 2005 6.7 7.128 N/A July 2005 6.7 6.937 N/A June 2005 6.7 6.437 N/A May 2005 6.7 6.248 N/A April 2005 6.7 6.298 N/A March 2005 6.7 6.555 N/A February 2005 6.7 8.117 N/A January 2005 6.7 8.179 N/A December 2004 6.7 7.141 N/A November 2004 6.7 6.565 N/A October 2004 6.7 6.432 N/A September 2004 6.7 6.665 N/A August 2004 6.7 7.489 N/A July 2004 5.9 7.025 N/A June 2004 5.9 6.520 N/A May 2004 5.9 5.958 N/A April 2004 5.9 6.043 N/A March 2004 5.9 6.837 N/A February 2004 5.9 6.886 N/A January 2004 5.9 7.002 N/A December 2003 5.5 6.769 N/A November 2003 5.5 6.116 N/A October 2003 5.5 5.899 N/A September 2003 5.5 6.504 N/A August 2003 5.5 6.532 N/A July 2003 5.5 6.532 N/A June 2003 5.5 5.737 N/A May 2003 4.662 4.307 N/A April 2003 4.662 4.724 N/A March 2003 4.662 4.741 N/A February 2003 4.662 4.685 N/A January 2003 4.662 4.569 N/A December 2002 4.662 4.134 N/A November 2002 4.662 4.113 N/A October 2002 4.662 4.500 N/A September 2002 4.662 4.500 N/A August 2002 4.662 7.496 N/A July 2002 4.662 7.481 N/A June 2002 4.662 6.365 N/A May 2002 4.662 5.164 N/A April 2002 4.662 5.193 N/A March 2002 4.662 5.128 N/A February 2002 4.662 5.674 N/A January 2002 4.662 5.674 N/A December 2001 5.500 5.674 N/A November 2001 5.500 5.674 N/A October 2001 5.500 5.674 N/A September 2001 6.302 5.674 N/A August 2001 6.302 9.981 N/A July 2001 6.302 10.399 N/A June 2001 6.302 8.102 N/A May 2001 6.302 5.882 N/A April 2001 6.302 7.875 N/A March 2001 5.905 8.505 N/A February 2001 5.905 8.925 N/A January 2001 5.905 7.775 N/A December 2000 5.401 5.401 N/A November 2000 5.401 5.401 N/A October 2000 5.401 4.500 N/A September 2000 4.500 4.500 N/A August 2000 4.100 5.360 N/A July 2000 4.100 6.300 N/A June 2000 3.800 4.500 N/A May 2000 back through January 2000 3.800 3.800 N/A 1 - Standard Offer Service is available to all customers who have not elected to take their electric supply from a non-regulated power producer. Customers who leave Standard Offer Service may not return to Standard Offer Service. 2 - Last Resort Service is available to customers who do not take their electric supply from a non-regulated power producer and are ineligible for Standard Offer Service. The Last Resort Service rate for residential customers is the same as the Standard Offer Service Rate. 3 – As part of the supply charges, standard offer and last resort customers also pay a renewable energy charge. This charge is shown separately on the customer’s bill.