M-5Appellants Response to NSPI Reply
10 passages
II. CHRONOLOGY OF RELEVANT EVENTS Date Event April 25, 2025 Nova Scotia Power announced a cybersecurity incident that disrupted communications with its metering and billing systems. Nova Scotia Power Date Event notified me that personal in...
AI summary This chronology outlines a series of events related to a cybersecurity incident at Nova Scotia Power, billing disruptions, home renovations, and a dispute over an invoice. The timeline includes key dates such as the announcement of the incident, the resumption of billing, home energy assessments, and the resolution of a financial dispute with RBC.
Issue Four Whether NS Power has adequately explained the significant increase in recorded electricity use after documented improvements to the home's energy efficiency.
AI summary Issue Four examines whether NS Power has sufficiently explained the significant increase in recorded electricity use following documented improvements to a home's energy efficiency.
H. Relationship to the Broader Evidence This issue should not be considered in isolation. It should be considered together with: - the acknowledged administrative billing interruption - the subsequent reconciliation of estimated charges -...
AI summary The issue is not considered in isolation but in conjunction with an administrative billing interruption, reconciliation of estimated charges, a disputed pre-authorized debit, and EnerGuide assessments. These factors led to requests for additional account-specific verification, which were deemed reasonable.
A. Overview The fourth issue concerns the relationship between the documented improvements to the home's energy efficiency and the significant increase in electricity consumption recorded in the disputed billing. I do not rely on the EnerG...
AI summary The fourth issue concerns the relationship between documented improvements in a home's energy efficiency and a significant increase in electricity consumption recorded in the disputed billing. The EnerGuide assessments are presented as independent evidence supporting the request for additional technical verification.
B. Independent Energy Assessments Before starting major renovations, I obtained an EnerGuide home evaluation. That assessment estimated the home's annual energy requirement at about 137 GJ/year, compared with about 179 GJ/year for a typica...
AI summary The text discusses energy assessments before and after home renovations, showing a reduction in annual energy requirements from 137 GJ/year to 112 GJ/year, a 18% improvement. This highlights the effectiveness of the renovations in reducing energy consumption.
C. Recorded Electricity Consumption During roughly the same period, NS Power's records show that average daily electricity consumption increased from about 85 kWh per day (from 1/25/2025 to 11/25/2025) , before the renovations, to about 14...
AI summary NS Power's recorded electricity consumption increased by 66% following renovations, from 85 kWh per day to 141 kWh per day. A later bill showed a return to approximately 82 kWh per day, similar to pre-renovation levels. The witness acknowledges that EnerGuide assessments model overall home energy performance and do not directly measure actual electricity consumption, which can be influenced by various factors.
D. Significance I am not saying that the EnerGuide assessments prove NS Power's billing is wrong. They do show, independently, that significant improvements were made to the home's energy performance immediately before the disputed increas...
AI summary The EnerGuide assessments indicate significant energy efficiency improvements in a home prior to a substantial increase in electricity consumption. The concern is that despite these improvements, recorded electricity consumption increased by approximately 66%, raising questions about the explanation provided by NS Power.
Independent Energy Performance Evidence Assessment Annual Energy Requirement Pre-renovation 137 GJ/year Post-renovation 112 GJ/year Improvement 25 GJ/year Typical New Home 179 GJ/year Recorded Electricity Consumption Period Average Daily C...
AI summary The document presents energy consumption data before and after renovations, showing a decrease in annual energy requirement but an increase in daily electricity consumption. The EnerGuide assessments are used to support the request for account-specific verification rather than proving billing errors.
Metering and Verification Topic NS Power Response Remaining Concern CT Ratio 300:5 identified How was the programming independently verified? Billing Multiplier 60 identified What evidence confirms correct programming and application? Comm...
AI summary The document outlines concerns related to metering and verification, including questions about the independent verification of programming, evidence confirming correct programming, verification of the complete metering and billing chain, validation of communications and billing integration, and reconciliation of increased recorded consumption with improved energy efficiency.
Questions Remaining Before the Board The following questions remain unanswered on the current record: - 1. Where in the PAD Agreement or MyAccount is it disclosed that cancelling Auto Pay does not cancel a previously scheduled PAD? - 2. Wh...
AI summary The document outlines five unresolved questions before the Board regarding billing procedures, energy charge credits, metering verification, discrepancies in electricity consumption, and account-specific evidence related to billing disputes.
M-6MEADE (NSEB) RIR-1 to RIR-3 (redacted)
23 passages
Response: - 4. Prior to the renovation, our electrical panel had begun tripping. Our electrician advised us that the existing panel was old and should be replaced. - 5. Because we were also installing a new HVAC system, the electrician rec...
AI summary The response discusses the need to upgrade an electrical panel and increase electrical service capacity to 400 amps as part of a home renovation and HVAC installation, aiming to future-proof the home's electrical infrastructure.
What was your heating system before the heat pump was installed? Was it electric heat? Response: - 7. The house was constructed in 1987 and originally used a geothermal heating system installed when the house was built. The geothermal syst...
AI summary The house originally used a geothermal heating system, which failed in 2024-2025, leading to reliance on an inefficient electric resistance coil, doubling electricity consumption. After efficiency upgrades and installing a new heat pump, consumption remained high, raising concerns about discrepancies in billing compared to historical data.
Historical Winter Consumption - 62. Historically, our electricity consumption would ordinarily increase during the winter from approximately 50-70 kWh/day to approximately 100 kWh/day, although actual consumption naturally varied between b...
AI summary Historical winter electricity consumption typically ranges from 50-70 kWh/day to 100 kWh/day. However, during the winter of 2024-2025, consumption spiked due to the failure of a geothermal system, forcing the use of electric resistance heating, which significantly increased daily usage.
Winter 2025-2026 - 65. The new high-efficiency Lennox heat pump was installed on October 28, 2025. - 66. Despite the replacement of the failed geothermal system, the energy-efficiency renovations to the home, and the installation of the ne...
AI summary A new high-efficiency Lennox heat pump was installed in October 2025, but despite this and energy-efficiency renovations, NS Power reported high energy consumption of 140.6 kWh/day by March 2026.
Conclusion Regarding Weather - 75. I therefore do not dismiss weather as a factor. Winter temperatures plainly affect the electricity required to heat a home. - 76. My concern is instead one of magnitude. - 77. The question is whether wint...
AI summary The conclusion emphasizes that while weather is a factor in electricity consumption, the high usage after efficiency improvements and installation of a heat pump raises concerns. The need for detailed verification of metering and billing processes is highlighted, especially due to an administrative error that affected billing for five months.
HOW YOUR RATING IS CALCULATED: Rated annual energy consumption 137 GJ/year II. Minus renewable energy contribution Equals your EnerGuide rating - 0 GJ/year = 137 GJ/year I. Your rated annual energy consumption is the total amount of energy...
AI summary The document explains how a home's EnerGuide rating is calculated by subtracting renewable energy contributions from the rated annual energy consumption, which includes passive solar gain. The rated consumption is based on standard operating conditions defined by the EnerGuide Rating System.
Energy Sources Rated Consumption (GJ/year) Equivalent Units (per year) Greenhouse Gas Emissions (tonnes/year) Electricity 137 38145 kWh 27.4 Total 137 27.4 II. On-site renewable power generation systems can offset some or even all of your...
AI summary The document presents a comparison of energy consumption and greenhouse gas emissions, highlighting the impact of on-site renewable power generation systems. It indicates that electricity and solar water heating can offset energy consumption and emissions, but in the provided example, no offset is currently realized.
WHERE YOUR HOME LOSES HEAT: Houses lose heat through their exterior shell, or building envelope. The chart below shows where and how your home loses heat. The quality and upkeep of your home can have a major impact on the amount of energy...
AI summary This section explains how homes lose heat through their exterior shell, or building envelope, and highlights the impact of home quality and upkeep on energy usage for heating and cooling systems.
ATTIC/CEILING INSULATION VALUE 4554 TYPE Nominal RSI (R) Effective RSI (R) AREA m² (ft²) #01 HIP MF: Attic/hip 8.57 (48.7) 6.56 (37.2) 17.4 (187) #02 GABLE 2ND: Attic/gable 8.57 (48.7) 8.19 (46.5) 154.3 (1661) #03 CATHEDRAL: Cathedral 5.36...
AI summary The document presents detailed data on insulation values, window and door U-factors, and air leakage rates for various building components. It includes tables with nominal and effective RSI (R) values, areas, and other technical specifications for attic, walls, floors, windows, doors, and basement insulation, as well as air tightness measurements.
SPACE HEATING SPACE HEATING TYPE OUTPUT SIZE EFFICIENCY Electric furnace 30.5 kW 104500 BTU/h 100% Steady State Water-source heat pump 21.35 kW 73000 BTU/h 2COP Wood fireplace 2 kW 7000 BTU/h 35% Steady State Advanced airtight wood stove 2...
AI summary The document provides technical specifications for various space heating and cooling systems, including electric furnaces, heat pumps, wood fireplaces, and baseboard heaters, along with their output sizes and efficiency ratings. It also includes design heating and cooling load values.
A typical new house have been used to calculate your home's EnerGuide Rating. The rating assumes a standard number of occupants and energy use patterns. This allows for comparison of energy use across houses so that the house is rated and...
AI summary The EnerGuide Rating for a typical new house is calculated based on standard assumptions about occupants and energy use patterns, allowing for consistent comparison of energy use across different homes.
Design heating/cooling loads provide an estimate of the capacity of the heating and cooling equipment needed to maintain your home at 22 °C in the winter and 24 °C in the summer and are provided for guidance only. Before having a new heati...
AI summary The text discusses the importance of estimating heating and cooling equipment capacity to maintain indoor temperatures and emphasizes the need for a detailed heat loss/heat gain calculation by a contractor before installation.
Standard operating conditions have been used to calculate your home's EnerGuide Rating. The rating assumes a standard number of occupants and energy use patterns. This allows for comparison of energy use across houses so that the house is...
AI summary The EnerGuide Rating for homes is calculated based on standard operating conditions, including assumptions about occupants, hot water use, thermostat settings, and electrical loads. These standards allow for consistent comparison of energy use across different homes.
U-factor measures heat transferred through windows and doors, expressed in W/m² • °C (BTU/h • ft² • °F). The lower the U-factor, the better the energy efficiency of a window. The inverse of U-factor (1/U-factor) identifies the resistance t...
AI summary The U-factor measures heat transfer through windows and doors, with lower values indicating better energy efficiency. The inverse of U-factor, RSI, measures heat resistance. These values help in selecting energy-efficient windows. The EnerGuide rating on utility bills may differ from actual energy consumption due to assumptions about home usage and occupancy.
NEXT STEPS If you have had a Renovation Upgrade Service, refer to your report for the roadmap to making your home more energy efficient. If you have not yet had a Renovation Upgrade Service, why not contact your service organization to lea...
AI summary The text encourages homeowners to use their Renovation Upgrade Service report to improve home energy efficiency and reduce emissions. It notes that EnerGuide ratings are based on standard conditions and may not reflect actual utility bills.
UPGRADE CONSIDERATIONS Before undertaking upgrades or renovations, find out about appropriate products and installation techniques, and ensure that all renovations meet local building codes and by-laws. Natural Resources Canada does not en...
AI summary The document provides guidance on considering upgrades and renovations, emphasizing compliance with local building codes and the importance of consulting qualified professionals for health and safety concerns. It also notes that Natural Resources Canada does not endorse specific contractors or products.
HOW YOUR RATING IS CALCULATED: Rated annual energy consumption 112 GJ/year II. Minus renewable energy contribution Equals your EnerGuide rating - 0 GJ/year = 112 GJ/year I. Your rated annual energy consumption is the total amount of energy...
AI summary The document explains how a home's EnerGuide rating is calculated by subtracting renewable energy contributions from the rated annual energy consumption, which is based on standard operating conditions and includes passive solar gain.
WHERE YOUR HOME LOSES HEAT: Houses lose heat through their exterior shell, or building envelope. The chart below shows where and how your home loses heat. The quality and upkeep of your home can have a major impact on the amount of energy...
AI summary This section explains how homes lose heat through their exterior shell, or building envelope, and highlights the impact of home quality and upkeep on energy use by heating and cooling systems.
ATTIC/CEILING INSULATION VALUE TYPE Nominal RSI (R) Effective RSI (R) AREA m² (ft²) #01 HIP MF: Attic/hip 8.57 (48.7) 6.56 (37.2) 17.4 (187) #02 GABLE 2ND: Attic/gable 8.57 (48.7) 8.19 (46.5) 154.3 (1661) #03 CATHEDRAL: Cathedral 5.36 (30....
AI summary The text presents tables with insulation values, window types, door specifications, and air leakage rates for various building components. It includes data on RSI values, U-factors, and areas for different sections such as attic, walls, floors, windows, doors, and basement.
A typical new house have been used to calculate your home's EnerGuide Rating. The rating assumes a standard number of occupants and energy use patterns. This allows for comparison of energy use across houses so that the house is rated and...
AI summary The EnerGuide Rating for a typical new house is calculated based on standard assumptions about occupants and energy use patterns, allowing for consistent comparison of energy use across different homes.
Standard operating conditions have been used to calculate your home's EnerGuide Rating. The rating assumes a standard number of occupants and energy use patterns. This allows for comparison of energy use across houses so that the house is...
AI summary The EnerGuide Rating for homes is calculated based on standard assumptions about occupants, energy use patterns, and thermostat settings, allowing for a consistent comparison of energy efficiency across different homes.
U-factor measures heat transferred through windows and doors, expressed in W/m² • °C (BTU/h • ft² • °F). The lower the U-factor, the better the energy efficiency of a window. The inverse of U-factor (1/U-factor) identifies the resistance t...
AI summary The U-factor measures heat transfer through windows and doors, with lower values indicating better energy efficiency. The inverse of U-factor (RSI) indicates heat resistance. EnerGuide ratings may differ from actual utility bills due to standard assumptions about home usage and occupancy.
NEXT STEPS If you have had a Renovation Upgrade Service, refer to your report for the roadmap to making your home more energy efficient. If you have not yet had a Renovation Upgrade Service, why not contact your service organization to lea...
AI summary The text encourages homeowners to use their Renovation Upgrade Service report to improve home energy efficiency. It acknowledges that EnerGuide ratings are based on standard conditions and may not align with actual utility bills.