The Pathway to Net-zero Energy PLUS Homes

Transcription

1 The Pathway to Net-zero Energy PLUS Homes Marshall Gobuty, CEO, Pearl Homes Blake Richetta, SVP, sonnen, Inc. Gary Carmack, VP of Energy Management, Pearl Homes

2 The Vision of Pearl Homes and Net-zero Energy PLUS 1. Clean energy vision of the Future 2. Affordable Smart & Sustainable Homes 3. LEED Platinum PLUS Goals 4. Change the World

3 What is Net-zero Energy? The U.S. Department of Energy (DOE) defines a net-zero energy / zero energy home as a high performance home which is so energy efficient, that a renewable energy system can offset all or most of its annual energy consumption. 3

4 Steps to Achieve Net-zero Energy 1. Engage the best of the best - partners 2. Design to cover key elements Healthful environment Comfort plus Advanced technology Ultra efficient Quality built Durability 3. Incorporate the latest coolest innovative energy efficient products 4. Estimate annual consumption 5. Size solar array and storage to offset annual energy consumption 6. Measure and verify

5 Key Partners in Achieving Net-zero Energy Whole home design Energy consumption Energy monitoring

6 Key Design Elements 1. Thermal envelope / insulation 2. Renewable energy generation - solar panels 3. Energy storage & management system 4. Energy efficient lighting 5. High-performance thermal windows/doors 6. Energy STAR appliances with demand response 7. HVAC 8. Indoor air quality management 9. Whole house ventilation 10. Smart home integration 11. Water management and recovery

7 Net-zero Every Step of the Way Thermal & Insulation 7

8 Net-zero Every Step of the Way Energy Consumption

9 Net-zero Every Step of the Way Energy Modeling 1. Data on power needed for expected loads Appliances HVAC and thermal control Energy needs for comfort 2. Calculating expected annual solar generation 3. Designing and sizing solar + storage to meet loads 4. Defining backup power required for protected loads 5. Taking energy losses & efficiencies into account 6. It s complicated Photovoltaic System Performance Summary MGI Title: HUNTERS-POINT-45'Plan TMY City: FL_SARASOTA_BRA th Avenue East Rating14 Elec Util: Florida Average Palmetto, FL, Gas Util: Florida Average Registration #: 0 Run Date: 11/13/ :54:27 Size # m² (ft²) Orientation Degrees (N=0,E=90) Photovoltaic System Inputs Tilt Degrees (0 = flat) Array Type # Modules Array Rated Efficiency Array Wp Inverter Type (285.22) SolarTech Hjt SMA Sunnyboy 6000US % Inverter Rated Efficiency Total 26.50(285.22) NA NA NA NA 97.0 % Average Meteorological Data Horizontal Insolation Ambient Temp. Wind Speed (kwh/m²/day) ºC (ºF) m/s (mph) (0.0) 3.38 (7.55) Solar Insolation POA # (kwh/m²) Start Date: January 1 End Date: December 31 DC Energy (kwh) Array Efficiency Wet Bulb ºC (ºF) (0.0) Average Daily System Performance Overall AC Energy Conversion AC Energy/ (kwh) Efficiency Rating/Sun PV AC to House Avg. Capacity Factor kwhac/(24*ratedwp) PV(AC) as % of HVAC % % 80.6 % % 17.3 % % Total % % 80.6 % 46.1 % 17.3 % 1.7E3 % 11/13/ :55 AM EnergyGauge / USRRPB v6.1 Page 1 of 1

10 Net-zero Every Step of the Way - Solar + Storage Solar array Intelligent energy storage sonnen Eco Will Call Demo Unit 10

11 Net-zero Every Step of the Way Smart Appliances sonnen Eco Will Call Demo Unit 11

12 Net-zero Every Step of the Way 12

13 Energy Monitoring with sonnen 1. Household energy generation and consumption - hourly, daily, monthly, yearly 2. Real-time battery state-of-charge 3. Available amount of backup power 4. Forecast of solar production and consumption 5. Smart weather forecasting (ecolinx) 6. sonnencommunity VPP

14 Pearl Home Energy Monitoring with sonnen

15 What is Net-zero Energy PLUS? Achieving Net Positive Energy (Net-zero PLUS) means producing, from renewable resources, more energy on site than is used in a year. Pearl Homes takes it to the next level by adding a community energy management feature, using sonnen, where excess generation and storage capacity are used to provide grid services to the local utility - supporting the growth of renewables, modernizing the grid infrastructure and stabilizing the climate.

16 The Original Challenge Balancing Generation with Load

17 The New Challenge The Unpredictable and Intermittent Nature of Renewables, Adds new Volatility There cannot be a serious discussion regarding the energy transition, without energy storage Energy storage is a key component to a renewable energy future

18 18 The Energy Transition, The Smart Grid of the Future Decentralized Digitalized Decarbonized..Balanced, Harmonized Virtual Power Plant (VPP)

19 Load Shaping By way of Daily Cycling or as Dynamic Capacity Dispatchable on Demand (VPP) Dark Blue = Grid Charge Orange = Discharge Dark Green = Grid Charge Red = Discharge Load Shift Example 1 Load Shift Example 2 Solar Time Shifting couple with load shedding, demand control Consume more during off peak and less during peak

20 Load Shaping A Day in the Life use more during off-peak redeploy and use less during peak 1am 6:29am Grid Power utilized to Charge Battery to 15%, to power home loads and charge EV messaging is focused around creating truly climate positive structures that help to decarbonize environment and contribute to a healthier planet. intelligently manage production, storage and consumption to benefit society/the grid 6:30am 9:59am Direct Solar Self- Consumption Solar Time Shifting Charge Battery to 40% 10am 2:59pm Direct Solar Self- Consumption Solar Time Shifting Charge Battery to 80% Direct Load Shift: Pre- Cool Home Grid Load Shift via Battery: Charge battery to 100% Assist by way of AC Load Shed Lowering Shades 3pm 10pm Discharge Battery Flood Peak Period Deploy smart demand control / load shedding (AC, lighting, other loads) Standby excess battery capacity and further shedding for DR 10:01pm 6:29am Grid Power utilized to power home loads

21 Learn How to Design for Net-zero PLUS at 21

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