1 The Leader in Grid Tied Residential Energy Storage Blake F. Richetta Senior Vice President, sonnen Inc. Blake.R@sonnen-batterie.com
Why Energy Storage? #1. Solve a Problem: The inherent challenge presented to the power grid, as a result of the intermittent and unpredictable nature of renewable energy, can be mitigated by a distributed network of energy storage systems Challenges: “Green grid reliability requires flexible 1. The rapid downward ramp during peak renewable production hours and the rapid resource capabilities” upward ramp, to evening peak “Reliability requires balancing supply 2. Grid stress, voltage fluctuation or loss, inefficiency and demand” 3. Less than ideal carbon offset -California ISO Result: Electricity Grid requires a resource mix that can react quickly to rapid changes
Why Energy Storage? #2 . Add Value ! A distributed network of behind the meter energy storage systems can help solve the challenges associated with “peak demand” on the grid
Why Energy Storage? #2 . Add Value ! Building a decentralized “virtual power plant” can be less expensive, more efficient and significantly cleaner than building a traditional “peaker plant” or new substation Distributed energy storage can represent a viable “non wire alternative” to traditional grid infrastructure upgrades Both of the above examples can lead to substantive investment deferrals
Energy Storage Applications #1. Daily cycling of stored sunlight energy • Offset “peak periods” with stored sunlight energy or energy from grid load shifting: • Aka “ Time of Use ” • Environmental benefit + potential financial benefit • Avoid TOU Peak Rates “TOU arbitrage” • Avoid Demand Charges • Run your home on solar energy when the sun is no longer shinning, 24 hours a day: run your home on stored sunlight • Aka “ Self-Consumption ” harness the sunshine 24 hours a day • Environmental + potential financial benefit
Energy Storage Applications #2. Solar Optimized Backup Power + =
Energy Storage Applications #3. Grid Services via the aggregation of Distributed Energy Resources 1. Demand Response • Offset grid peak periods ( utilizing stored sunlight or grid load shift energy ) • Act as an outlet for excess renewable production 2. Flexible Ramping 3. Capacity Firming, Dynamic Capacity 4. Frequency Regulation 5. Voltage and Reactive Power support 6. Emergency Backup 7. Situational Intelligence
“ The Utility of the Future ” • Utility manages an intelligent, decentralized power grid that is both complex and dynamic – interacting efficiently at the individual circuit level • “Low -cost information and communications technologies and advanced metering enable more cost-reflective prices and charges for electricity services that can finally animate the “demand side” of the power system and align myriad decisions with the optimization of net social welfare” – MIT Future of the Power Grid Research, 2016
“ The Utility of the Future ” • High renewables penetration, supported by storage • Residential • Commercial • Utility Scale • Critical role of Distributed Energy Resources (DERs) and Distributed Energy Resource Management Systems (DERMS)
“ The Utility of the Future ” • Significant percentage of energy will be self- produced by “ prosumers ” and will either be self-consumed or exported when required • Smart Consumption and Managed Production • Increased significance of smart home and building energy management systems and appliances, specifically for the purpose of “demand control” and “load balancing”
“ The Utility of the Future ” • Agile Utility manages the transactional platform between “ prosumers, ” supplementing where needed as a “ reliable backup” • Electricity Grid consists of a fleet of low- carbon footprint centralized power plants, complemented by a large network of distributed energy resources, specifically renewable generation coupled with storage – both Front-of-Meter and Behind-the-Meter • Eliminating the need for Peaker Plants
“ The Utility of the Future ” • The electrification of transport will play a significant role, as grid infrastructure will be utilized to charge EVs, often during “ off-peak ” hours
“ The Utility of the Future ” *Export Distributed to Grid Storage Generation when • Smooth, highly managed relationship needed between Production and Consumption Loads Central Generation *Behind the Meter DER
“ The Utility of the Future ” Grid Innovation According to the MIT 2016 grid innovation study, customers are making inefficient investments and are overcompensated for the services that they provide to the power system At the same time, many more opportunities that could deliver greater value are being left untapped because of inadequate compensation
The Utility and Electricity Grid Landscape of the future (Aspirational as well as Logical) Grid Innovation • A more level playing field for the provision and consumption of electricity services, whether via centralized or distributed resources • A more competitive, market driven Utility landscape, clearly separated from the Grid Operator function
The Utility and Electricity Grid Landscape of the future (Aspirational as well as Logical) Grid Innovation • Remove inefficient barriers to the integration of cost-effective new sources of electricity services • Rethink ill-designed incentives for certain resources • Create a system of prices and charges that can animate efficient decisions • Electricity Grid that is more efficient and nimble, yet less expensive to operate
The Utility and Electricity Grid Landscape of the future (Aspirational as well as Logical) Grid Innovation • Utility companies will become inherently “lean” - rewarded for greater efficiency and systemic improvements • Utility companies will be incentivized for longer-term innovation, in order to accelerate R&D investments – with a special focus on “ novel technologies and practices ” with a higher-risk factor and longer-term payback
The Utility and Electricity Grid Landscape of the future (Aspirational as well as Logical) Grid Innovation • Highly flexible TOU rate structures, including a significant delta between Peak and Off-Peak • TOU rates will be accompanied by high levels of local and situational granularity, based on specific location and specific conditions on the grid, at a specific time • Requiring flexible distributed energy resources
The Utility and Electricity Grid Landscape of the future (Aspirational as well as Logical) Grid Innovation • The electricity grid of the future will include a “ Central Data Hub ” • Securely storing metered data on customer usage, telemetry data on network operation and constraints, and other relevant information • The “Hub” will enable timely access to this useful data to end customers • Cyber Security and Privacy will become a keystone of the future “ distributed intelligent grid ”
The Utility and Electricity Grid Landscape of the future (Aspirational as well as Logical) Grid Innovation Wholesale market design will be improved to better integrate distributed resources, reward greater flexibility, and create a level playing field for all technologies • Wholesale market rules, such as bidding formats, will evolve to ease the participation of energy storage • Wholesale markets should enable transactions to be made closer to real time to reward flexible resources and to enable better forecasting and control of variable renewable resources and electricity demand.
The Utility and Electricity Grid Landscape of the future (Aspirational as well as Logical) • DERMS will rely heavily on Blockchain technology • Blockchain: a digital ledger in which transactions made in bitcoin or another cryptocurrency are recorded chronologically and publicly.
The sonnen Brand Story Unique value proposition: #3 sonnen Community • Over 7,000 Members • Peer-to-Peer Clean Energy Trading Platform • Providing Grid-Services • Frequency Regulation • Demand Response • sonnen “Flat” offers free clean energy, for 10-years (kWh limits apply) • sonnen City further substantiates the viability of aggregating a distributed network of energy storage systems, for the purpose of grid stabilization and VPP
The sonnen Brand Story Unique Value Proposition: #3 sonnen Community = “ clean energy community ”
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