Difference between revisions of "Energy Storage Product Database/Yotta"

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{| class="wikitable"  style="width: 100%; text-align: center;"
{| class="wikitable"  style="width: 100%; text-align: center;"
! style="width: 20%" | '''Products'''
! style="width: 20%" | '''Products'''
! style="width: 20%" | SolarLeaf
! style="width: 40%" | SolarLeaf
! style="width: 20%" | REV
! style="width: 40%" | REV
|-
|-
| ''Industry''
| ''Industry''
| Residential
| Commercial
| Commercial, Industrial
| Commercial, Industrial
|-
|-
| ''Energy Capacity''
| ''Energy Capacity''
| 1 kWh
| 1 kWh
| 232 kWh
| 500 kWh
|-
|-
| ''Power Capacity''
| ''Power Capacity''
| 675 W
| 0.675 kW
| 130 kW
| 24 kW
|-
|-
| ''Storage''
| ''Storage''
Line 44: Line 44:


=Products=
=Products=
===SolarLEAF===
Yotta's energy storage solution the SolarLEAF (SL-1000) is a lithium iron phosphate battery, mounted on the reverse or side of rooftop PV panels, hence the naming. This approach requires the deployment of many SolarLEAF modules in order for an installation to be of sizeable substance and efficacy. Though this increases the length of cable needed for wiring up an installation, each individual battery module can be easily carried, since the overall weight is spread out over a large number of units. The SolarLEAF is designed with passive thermal regulation technology that allows the systems to withstand being installed on top of hot roofs.
Yotta's energy storage solution the SolarLEAF (SL-1000) is a lithium iron phosphate battery, mounted on the reverse or side of rooftop PV panels, hence the naming. This approach requires the deployment of many SolarLEAF modules in order for an installation to be of sizeable substance and efficacy. Though this increases the length of cable needed for wiring up an installation, each individual battery module can be easily carried, since the overall weight is spread out over a large number of units. The SolarLEAF is designed with passive thermal regulation technology that allows the systems to withstand being installed on top of hot roofs.


The REV is a deployable EV charging system equipped with solar panels, battery energy storage, power inverters, and EV charging ports. It is meant to provide an off-grid EV charging solution to locations that cannot be serviced by grid-tied power.
===REV===
 
The REV is a deployable EV charging system equipped with solar panels, battery energy storage, power inverters, and EV charging ports. It is meant to provide an off-grid EV charging solution to locations that cannot be serviced by grid-tied power. The battery energy capacity of the system is configurable from 50 to 300 kWh and its EV charging power capacity tops out at 24 kW. The REV is can be connected to the grid, but is also able to run off-grid, with its solar PV system, expandable from 15 to 50 kW.
Yotta is reported to source its lithium iron phosphate batteries from Murata and their Fortelion line of energy storage cells.
{| class="wikitable" style="width: 100%; text-align: center;"
{| class="wikitable" style="width: 100%; text-align: center;"
! style="width: 20%" | '''Products'''
! style="width: 20%" | '''Products'''
! style="width: 20%" | SolarLEAF (SL-1000)
! style="width: 40%" | SolarLEAF (SL-1000)
! style="width: 20%" | REV
! style="width: 40%" | REV
|-
|-
| ''Industry''
| ''Industry''
| Residential, Commercial
| Commercial
| Commercial, Industrial
| Commercial, Industrial
|-
|-
| ''Energy Capacity''
| ''Energy Capacity''
| 14 kWh
| 1 kWh
| 14 kWh
| 500 kWh
|-
|-
| ''Power Capacity''
| ''Power Capacity''
| 5 kW
| 0.675 kW
| 770 kW
| 24 kW
|-
|-
| ''Storage''
| ''Storage''
| various
| Murata
| various
| Murata
|-
|-
| ''Inverter''
| ''Inverter''
| Tesla
| Yotta
| Tesla
| Yotta
|-
|-
| ''Controller''
| ''Controller''
| Tesla
| Yotta
| Tesla
| Yotta
|}
|}


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{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
! style="width: 20%" |  
! style="width: 20%" |  
! style="width: 20%" | SolarLEAF
! style="width: 40%" | SolarLEAF
! style="width: 20%" | REV
! style="width: 40%" | REV
! style="width: 20%" |
! style="width: 20%" |
|-
|-
| ''Self-consumption''
| ''Self-consumption''
Line 97: Line 96:
| ''Energy Time Shift TOU''
| ''Energy Time Shift TOU''
| yes
| yes
| yes
|  
|-
|-
| ''Peak Shaving''
| ''Peak Shaving''
Line 105: Line 104:
| ''Demand Response''
| ''Demand Response''
| yes
| yes
| yes
|  
|-
|-
| ''Demand Charge Reduction''
| ''Demand Charge Reduction''
| yes
| yes
| yes
|
|-
|-
| ''Solar PV Charging''
| ''Solar PV Charging''
Line 121: Line 120:
| ''Power Quality''
| ''Power Quality''
|  
|  
|  
| yes
|-
|-
| ''Market participation''
| ''Market participation''
Line 149: Line 148:


==Storage System==
==Storage System==
Tesla sources their battery modules and cells from a variety of manufacturers, partnering with others like Panasonic and Samsung SDI.<ref name="tesla-battery-cell-source">[https://www.energy-storage.news/tesla-using-samsung-cells-in-south-australia-as-100-days-countdown-begins/ Energy Storage New web article]</ref>
Yotta has reported to source its lithium iron phosphate batteries from Murata and their Fortelion line of energy storage cells.<ref name="yotta-murata">[https://www.yottaenergy.com/blog-1/murata-electronics-and-yotta-energy-announce-collaboration-to-enable-innovative-and-safe-energy-storage-solution Yotta: Murata Electronics and Yotta Energy Announce Collaboration to Enable Innovative and Safe Energy Storage Solution]</ref><ref name="murata-yotta">[https://www.murata.com/en-us/news/batteries/stbm/2020/0804 Murata: Murata Electronics and Yotta Energy Announce Collaboration to Enable Innovative and Safe Energy Storage Solution]</ref>
 
===Powerwall===
Tesla continues being a leading distributor of residential energy storage with the Powerwall solution, which they have begun to released coupled with Tesla solar efforts, alongside continued car sales.
 
The Powerwall 2.0 is composed of lithium ion battery cells manufactured by Tesla with Gigafactory partner Panasonic. The battery energy storage system generally include within its rectangular enclosure an integrated inverter and thus is AC-coupled by default. In the past some versions did not have a built-in inverter and thus could be DC-coupled. This also allows the system to be quite modular; additional units can be purchased and installed in parallel.
 
The Powerwall 2.0 sports a total energy capacity of 14 kWh and a usable energy capacity of 13.5 kWh. With a nominal internal DC battery voltage of 50 V, the unit's charge capacity pans out to 280 Ah.
 
The battery's rated continuous power capacity is 5 kW and the rated peak power capacity is 7 kW. The rated continuous apparent power capacity is 5.8 kVA and the peak apparent power capacity is 7.2 kVA. These values apply for both charge and discharge. Tesla claims a round trip efficiency 90 %.
 
The value on the specification sheet was derived from the common test condition of 3.3 kW charge/discharge at 25 °C.
 
The Powerwall 2.0 has been deployed in a number of residential contexts in a variety of climates and locations, utility services territories, and countries, though primarily in the United States and Australia.
 
The storage system is not always readily available and purchasers should expect delays in procurement as the lithium-ion battery cells used in this product and the same ones used in Tesla vehicles.
 
===Powerpack and Megapack===
A single Tesla Powerpack battery energy storage unit consists of sixteen (16) individual battery pods, a thermal control system, and sensor for monitoring and reporting status information of internal components.
 
The Powerpack 2.0 is composed of lithium ion battery cells manufactured by Tesla with Gigafactory partner Panasonic.
 
Each Powerpack unit sports an energy capacity of 232 kWh. Each unit's rated continuous power capacity goes up to 130 kW and allows a depth of discharge of 100 %. The round trip efficiency is 88 % for 2-hour systems and 89.5 % for 4-hours systems.
 
These efficiency calculations were derived from net energy delivered at 25 °C / 77 °F.
 
The Powerpack 2.0 has been deployed in a number of utility, commercial, and industrial contexts in a variety of climates and locations, utility services territories, and countries, though primarily in the United States and Australia. The EPRI team has played a role in the commissioning and testing of a number of these systems across the country.
 
Purchasers looking to procure the Powerpack can submit and inquiry to Tesla from their website to receive a follow-up via email or phone.
 
The Megapack is available in 4-hour and 2-hour options.
==Storage System==
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
! style="width: 20%" |  
! style="width: 20%" |  
! style="width: 20%" | Powerwall 2
! style="width: 40%" | SolarLEAF
! style="width: 20%" | Powerwall+
! style="width: 40%" | REV
! style="width: 20%" | Powerpack 2.0
! style="width: 20%" | Megapack
|-
|-
| ''Technology Type''
| ''Technology Type''
| Lithium ion
| Lithium ion phosphate
| Lithium ion
| Lithium ion phosphate
| Lithium ion
| Lithium ion
|-
|-
| ''Storage Media Provider''
| ''Storage Media Provider''
| various
| Murata
| various
| Murata
| various
| various
|-
|-
| ''Storage Media Model''
| ''Storage Media Model''
| Powerwall 2
| Fortelion
| Powerwall+
| Fortelion
| Powerpack 2.0 Battery Pods
| Megapack
|-
|-
| ''Coupling Type''
| ''Coupling Type''
| AC
| AC
| AC
| AC
| AC
|
|-
|-
| ''Charge Capacity''
| ''Charge Capacity''
| 280 Ah
| 26.4 Ah
|  
| 750 Ah
|
|
|-
|-
| ''Total Energy''
| ''Total Energy''
| 14 kWh
| 1 kWh
| 14 kWh
| 600 kWh
| 232 kWh
| 3,080 kWh
|-
|-
| ''Usable Energy''
| ''Usable Energy''
| 13.5 kWh
| 1 kWh
| 13.5 kWh
| 600 kWh
| 232 kWh
|
|-
|-
| ''Rated Continuous Discharge Real Power''
| ''Rated Continuous Discharge Real Power''
| 5 kW
| 0.675 kW
| 7.6 kW Full sun / 5.8kW no sun
| 48 kW
| 130 kW
| 770 kW
|-
|-
| ''Max Peak Discharging Real Power''
| ''Max Peak Discharging Real Power''
| 7 kW
| 9.6 kW off-grid / 5kw on grid
|
|  
|  
| 60 kW
|-
|-
| ''Rated Continuous Charge Real Power''
| ''Rated Continuous Charge Real Power''
| 5 kW
| 0.675 kW
| 7kW
| 34 kW
| 130 kW
| 770 kW
|-
|-
| ''Max Peak Charging Real Power''
| ''Max Peak Charging Real Power''
| 7 kW
| 9.6 kW
|  
|  
|  
|  
|-
|-
| ''Idle Load''
| ''Idle Load''
|
|
|  
|  
|  
|  
|-
|-
| ''Response time''
| ''Response time''
| 10 s
| 10 s
|  
|  
|  
|  
|-
|-
| ''DC Voltage (Nominal, Converter Output)''
| ''DC Voltage (Nominal, Converter Output)''
| 38.4 V
|  
|  
| 480
|
| 480
|-
|-
| ''DC Voltage (Range)''
| ''DC Voltage (Range)''
|  
| 22 to 45 V
| 60 - 600 V dc
|
|  
|  
|-
|-
| ''DC Voltage (Internal Battery)''
| ''DC Voltage (Internal Battery)''
| 50 V
| 50 V
|
|  
|  
|
|-
|-
| ''Rated Continuous Discharge Current''
| ''Rated Continuous Discharge Current''
| 21 A
| 15 A
| 32 A
|
|  
|  
|-
|-
| ''Max Peak Discharging Current''
| ''Max Peak Discharging Current''
| 29 A
| 15 A
| 40 A
|
|  
|  
|-
|-
| ''Rated Continuous Charge Current''
| ''Rated Continuous Charge Current''
| 21 A
|
|
| 135 A
|  
|  
|-
|-
| ''Max Peak Charging Current''
| ''Max Peak Charging Current''
| 29 A
|
|  
|  
|  
|  
|-
|-
| ''Roundtrip Efficiency (AC)''
| ''Roundtrip Efficiency (AC)''
| 0.9
|  
| 0.9
| 97.8% (peak)
| 0.88
97.5% (CEC)
| 0.94
|-
|-
| ''Roundtrip Efficiency (DC)''
| ''Roundtrip Efficiency (DC)''
| 0.918
| 0.9
|  
|  
|  
|  
|-
|-
| ''Degradation / Life (cycles)''
| ''Degradation / Life (cycles)''
|  
| > 8000 cycles (80% DoD)
|
|
|  
|  
|-
|-
| ''Depth of Discharge''
| ''Depth of Discharge''
| 0.964
| 0.8
|
| 0.8
| 1
|  
|-
|-
| ''Modularity''
| ''Modularity''
|  
| yes, via additional battery modules
| yes, additional batteries Powerwall unit; hardware above battery is specialized controller
| yes, via additional battery + PV modules
|
|
|-
|-
| ''Test conditions''
| ''Test conditions''
| 25 °C @ 3.3 kW
|  
| 25 °C
| 25 °C
|  
|  
|-
|-
Line 347: Line 262:
|  
|  
|  
|  
| Internal liquid cooling and heating
| Integrated
|}
|}


==Power Conversion System Specifications==
==Power Conversion System Specifications==
===Powerwall===
The Yotta dual power mircoinverter (DPI) is installed alongside and connected to the SolarLEAF and also mounted underneath solar PV panels. The inverter is three-phase and can accept four inputs of solar PV panels or SolarLEAF. It is available in two different output voltage levels, the DPI-208 for 208 volts and the DPI-480 for 480 volts.
The Powerwall 2.0 proprietary battery inverter is internally housed and embedded in the white rectangular packaing of the unit. Because the Powerwall 2.0 comes as an consolidated package with the battery modules and inverter in one enclosure, many of the technical specifications between the two overlap.
 
Like the battery modules, the inverter is made by Tesla and is internal and proprietary. The rated continuous power capacity is 5 kW and the rated peak power capacity is 7 kW. The rated continuous apparent power capacity is 5.8 kVA and the peak apparent power capacity is 7.2 kVA. These values apply for both charge and discharge. The round trip efficiency is 90 %.
 
The battery has an overcurrent protection device response at 30 A. The maximum output fault current is 32 A. The maximum supply fault current is 10 kA. The power factor range is +/- 1.0, though drops to +/- 0.85 at full rated power. The system is liquid cooled.[2]
 
The Powerwall connects to the AC bus in single-phase / split-phase configuration at 120 V / 240 V with nominal frequency of 60 Hz.
 
The Powerwall 2.0 has been deployed in a number of residential contexts in a variety of climates and locations, utility services territories, and countries, though primarily in the United States and Australia.
 
As one of its internal components, the inverter can only be acquired as part of the entire Powerwall 2.0 battery energy system.
 
===Powerpack===
 
The Powerpack operates with a bi-directional, power-scalable inverter.
 
The inverter's power ranges from 70 kVA to 700 kVA at 480 V AC. Its rated AC voltage is three-phase 380 to 480 V AC. The round-trip system efficiency is 88 % for 2-hour systems and 89.5 % for 4-hour systems. Onboard control software allow for communication via Modbus TCP/IP, DNP3, and Rest API. The inverter is housed in an IP66/NEMA 4 rated enclosure, weighing 1120 kg with dimensions of 1044 mm x 1694 mm x 2191 mm.
 
The Powerpack 2.0 has been deployed in a number of utility, commercial, and industrial contexts in a variety of climates and locations, utility services territories, and countries, though primarily in the United States and Australia. The EPRI team has played a role in the commissioning and testing of a number of these systems across the country.
 
This inverter is installed in a separate cabinet alongside the Powerpack energy storage system.
{| class="wikitable  mw-collapsible mw-collapsed" style="width: 100%; text-align: center;"
{| class="wikitable  mw-collapsible mw-collapsed" style="width: 100%; text-align: center;"
! style="width: 20%" |  
! style="width: 20%" |  
! style="width: 20%" | Powerwall 2
! style="width: 40%" | DPI-208
! style="width: 20%" | Powerwall+
! style="width: 40%" | DPI-480
! style="width: 20%" | Powerpack 2.0
! style="width: 20%" | Megapack
|-
|-
| ''Inverter Make''
| ''Inverter Make''
| Tesla
| Yotta
| Tesla
| Yotta
| Tesla
| Tesla
|-
|-
| ''Inverter Model''
| ''Inverter Model''
| internal
| DPI-208
| internal
| DPI-480
| cabinet
|  
|-
|-
| ''Rated AC Continuous Output Real Power''
| ''Rated AC Continuous Output Real Power''
| 5 kW
| 5 kW
| 7.6 kW
| 125 kW
|-
| ''Max AC Peak Output Real Power''
|  
|  
|  
|  
|-
| ''Max AC Peak Output Real Power''
| 7 kW
| 9.6 kW
| 130 kW
| 1,500kW
|-
|-
| ''Idle Load''
| ''Idle Load''
|  
| 30 W
|  
| < 20 W
|
|
|-
|-
| ''Rated AC Continuous Output Apparent Power''
| ''Rated AC Continuous Output Apparent Power''
| 5.8 kVA
| 5 kVA
| 7.6 kW
| 125 kVA
|
|
|-
|-
| ''Max AC Peak Output Apparent Power''
| ''Max AC Peak Output Apparent Power''
| 7.2 kVA
| 9.6 kW
|  
|  
|  
|  
|-
|-
| ''Rated Reactive Power''
| ''Rated Reactive Power''
|
|
|  
|  
|  
|  
|-
|-
| ''Rated Continuous Output Current''
| ''Rated Continuous Output Current''
| 21 A
| 32 A
|
|  
|  
| 150.4 A (linear load), 120 A (non-linear)
|-
|-
| ''Max Peak Output Current''
| ''Max Peak Output Current''
| 29 A
| 40 A
|
|  
|  
| 167 A
|-
|-
| ''Rated Continuous Battery Input Power''
| ''Rated Continuous Battery Input Power''
| 5 kW
| 7 kW
| 130 kW
|  
|  
| 122 kW
|-
|-
| ''Max Peak Battery Input Power''
| ''Max Peak Battery Input Power''
| 7 kW
|
|  
|  
|  
|  
Line 455: Line 321:
| ''Maximum Battery Input Current''
| ''Maximum Battery Input Current''
|  
|  
|  
| 163 A
|
|
|-
|-
| ''Maximum Output Fault Current''
| ''Maximum Output Fault Current''
| 32 A
|
|  
|  
|  
|  
|-
|-
| ''Overcurrent Protection Device''
| ''Overcurrent Protection Device''
| 30 A
|
|  
|  
|  
|  
|-
|-
| ''Maximum Supply Fault Current''
| ''Maximum Supply Fault Current''
| 10 kA
|
|  
|  
|  
|  
|-
|-
| ''Power Factor Output Range''
| ''Power Factor Output Range''
| +/- 1.0 adjustable
| 0.8 leading to 0.8 lagging
| +/– 0.9 to 1
| adjust from -1 to 1
|
|
|-
|-
| ''Power Factor Range (full-rated power)''
| ''Power Factor Range (full-rated power)''
| +/- 0.85
|
|  
|  
|  
|  
|-
|-
| ''Imbalance for Split-Phase Loads''
| ''Imbalance for Split-Phase Loads''
| 1
|
|  
|  
|  
|  
|-
|-
| ''Total Harmonic Distortion (THD)''
| ''Total Harmonic Distortion (THD)''
|  
| < 3% at rated power
|  
| < 5% at rated power
|
|
|-
|-
| ''Roundtrip Efficiency''
| ''Roundtrip Efficiency''
| 0.9
|  
| 0.975
| 0.87
|  
|  
|-
|-
| ''AC Connection Type''
| ''AC Connection Type''
| single-phase / split-phase
| three-phase
| single-phase / split-phase
| three-phase
| three phase
|
|-
|-
| ''Nominal Output AC Voltage''
| ''Nominal Output AC Voltage''
| 120 V / 240 V
| 230 V
| 120 V / 240 V
| 480 V
| 380 V to 480 V
|
|-
|-
| ''Nominal Frequency''
| ''Nominal Frequency''
| 60 Hz
| 60 Hz
| 60 Hz
| 60 Hz
|-
| ''Packaging''
|  
|  
|  
|  
|-
| ''Packaging''
| NEMA 3R
| NEMA 3R
| outdoor cabinets
| Integrated in Megapack container
|-
|-
| ''Modularity''
| ''Modularity''
|  
|  
|
| yes; scalable inverters from 70 kVA to 700 kVA (at 480V)
|  
|  
|-
|-
| ''Cooling System''
| ''Cooling System''
| liquid cooling
| natural cooling
| liquid cooling
| forced air with speed control
| internal liquid cooling and heating system 
|
|}
|}


==Energy Management System Specifications==
==Energy Management System Specifications==
Tesla uses its Opticaster energy management system in the Powerwall, Powerpack, and Megapack to monitor, record, report, and control the battery modules. The Opticaster system seeks to forecast and control energy storage systems in real-time.<ref name="opticaster-article">[https://www.tesla.com/support/energy/tesla-software/opticaster Tesla Opticaster web article]</ref>
Yotta's energy management system is Yotta Vision that provides users with data analytics and visibility into their system.
 
The Powerwall's energy storage system is self-managed by Tesla themselves and is able to integrate with Tesla-installed solar at the same site as well. The makes the user experience relatively seamless when compared to comparable systems that rely on a variety of energy monitoring systems and sources. Tesla however is also known for not releasing a public API for their battery and solar data, thus making it virtually impossible to connect Tesla data with other energy monitoring and management systems apart from installing another distinct hardware kit for battery and solar monitoring.
 
The Tesla app, accessible via web or mobile device, allows users to manage their battery system for Backup power, solar PV self-consumption, and time-based control. The battery must be constantly connected to the Internet via Ethernet cable or Wi-Fi to enable such control. No direct offline control via MODBUS or other control protocols are available at this time.
 
Selected customer testimonials include mention of utilizing the Tesla Powerpacks for site-specific as well as general applications such as network support, diesel abatement, renewable consumption, peak shaving, capacity reserve, demand response, and load shifting. Onboard control software allow for communication via Modbus TCP/IP, DNP3, and Rest API.
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
! style="width: 20%" |  
! style="width: 20%" |  
! style="width: 20%" | Powerwall 2
! style="width: 40%" | Vision
! style="width: 20%" | Powerwall+
! style="width: 20%" | Powerpack 2.0
! style="width: 20%" | Megapack
|-
|-
| ''Energy Management System''
| ''Energy Management System''
| Tesla
| Vision
| Tesla
| Tesla
| Tesla
|-
|-
| ''Control Capabilities''
| ''Control Capabilities''
| Backup power, solar PV self-consumption, time-based control, off-grid capability (coming soon)
| solar charging, backup power, maximum power point tracking
| Backup power, solar PV self-consumption, time-based control, off-grid capability
| Peak shaving, load shifting, emergency backup, demand response, renewable integration, capacity reserve, ancillary services, T&D support
|
|-
|-
| ''Portal availability''
| ''Portal availability''
| Monitoring and control functions available on web / mobile device Tesla app
| Monitoring and control functions available on web / mobile device Tesla app
|
|  
|  
|-
|-
| ''Communications & Network''
| ''Communications & Network''
| Ethernet, WiFi
| Ethernet, Wi-Fi, cellular LTE 4G
| Modbus TCP/IP; DNP3
|  
|  
|}
|}


==Environment and Mechanical==
==Environment and Mechanical==
The Powerwall 2.0 is offered in its well-known sleek white rectangular enclosures. The HxWxD dimensions are 1150 mm x 755 mm x 155 mm and weighs 114 kg. The battery unit can be mounted on a wall or on the ground. It can be installed either outdoor or indoor. The NEMA 3R enclosure has an ingress rating of IP 67 for the battery and power electronics and IP 56 for wiring.
The operating temperature ranges from -20 to 50 °C with an optimal temperature range of 0 to 30 °C. The unit is rated for wet locations, can run in an operating humidity of 100 % relative humidity condensing and at an altitude of up to 3000 m. The system is modular and additional units can be installed in parallel.
The Powerpack system comes in various outdoor, metal cabinets and enclosures. Batteries are housed in an IP35/NEMA 3R rated enclosure, weighing 2199 kg with dimensions of 1317 mm x 968 mm x 2187 mm. The inverter is housed in an IP66/NEMA 4 rated enclosure, weighing 1120 kg with dimensions of 1044 mm x 1694 mm x 2191 mm.


The operating temperature ranges from -30 °C to 50 °C or -22 °F to 122 °F. The unit is rated for wet locations, can run in an operating humidity of 100 % relative humidity condensing and at an altitude of up to 3000 m. The system is modular and additional units can be installed in parallel.
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
! style="width: 20%" |  
! style="width: 20%" |  
! style="width: 20%" | Powerwall 2
! style="width: 40%" | SolarLEAF
! style="width: 20%" | Powerwall+
! style="width: 40%" | REV
! style="width: 20%" | Powerpack 2.0
! style="width: 20%" | Megapack
|-
|-
| ''Mounting''
| ''Mounting''
| Floor or Wall
| Roof
| Floor or Wall
| Floor
| Floor Cabinet
| Floor Cabinet
|-
|-
| ''Weight''
| ''Weight''
| 125 kg
| 56.7 lb
| 140 kg
|  
| 2,199 kg (battery)
1,120 kg (inverter)
| 30,500 kg max (67,100 lbs max)
|-
|-
| ''Footprint''
| ''Footprint''
| 1150 mm x 753 mm x 147 mm (45.3 x 29.6 x 5.75 in)
| 15.75 in x 26.25 in x 4.25 in (battery)
| 1596 x 755 x 160 mm (62.8 x 29.7 x 6.3 in)
| 4.0 ft x 8.1 ft x 8.7 ft
| 1317 mm x 968 mm x 2187 mm (battery)
1044 mm x 1394 mm x 2191 mm (inverter)
| 7.26 m L x 1.7 m D x 2.5 m H  (23.8 ft L x 5.42 ft D x 8.3 ft H)
|-
|-
| ''Indoor/outdoor''
| ''Indoor/outdoor''
| Indoor or Outdoor
| Indoor or Outdoor
| Outdoor
| Outdoor
| Outdoor
| Outdoor
|-
|-
| ''Enclosure''
| ''Enclosure''
| NEMA 3R
| NEMA 67 / IP 67
| NEMA 3R
| Powerpack: NEMA 3R
Inverter: NEMA 4
|  
|  
|-
|-
| ''Ingress Rating''
| ''Ingress Rating''
| IP 67 (Battery and Power Electronics), IP 56 (Wiring Compartment)
|  
| IP 67 (Battery and Power Electronics), IP 56 (Wiring Compartment)
| Pods: IP67
Powerpack: IP35
Inverter: IP66
|  
|  
|-
|-
| ''Noise''
| ''Noise''
| < 40 dB at 30 °C
| < 40 dB optimal, < 50 db max @ 1 m
|  
|  
|  
|  
|-
|-
| ''Operating temperature''
| ''Operating temperature''
| -20 to 50° °C
| -20° to 43 °C / -4° to 109 °F
| -20 to 50° °C
|  -30 °C to 50 °C
|  
|  
|-
|-
| ''Optimum temperature''
| ''Optimum temperature''
| 0 °C to 30° °C
| 0 °C to 30° °C
|  
|  
|  
|  
|-
|-
| ''Operating humidity''
| ''Operating humidity''
| 100% relative humidity, condensing
| 0% to 90 % noncondensing (battery), 0 % to 100 % (inverter)
| 100% relative humidity, condensing
| < 95% relative humidity, non-condensing
|
|
|-
|-
| ''Altitude''
| ''Altitude''
| < 3000 m
| < 3000 m
|  
|  
|  
|  
|-
|-
| ''Modularity''
| ''Modularity''
|  
| by design, requires multiple SolarLEAFs
|  
| expandable PV and storage sizes
| Powerpacks can be added to create a larger effective storage system
|
|}
|}


==Warranty==
==Warranty==
Tesla’s 2020 Megapack datasheet specifies “a standard warranty of up to 15 years, with the option of a 20-year Capacity Maintenance Agreement (CMA) in certain cases.”  Tesla’s “Megapack Order Agreement” refers to a “Megapack Manufacturer’s Limited Warranty” document that is not publicly available.
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
! style="width: 20%" |  
! style="width: 20%" |  
! style="width: 20%" | Powerwall 2
! style="width: 40%" | SolarLEAF
! style="width: 20%" | Powerwall+
! style="width: 40%" | REV
! style="width: 20%" | Powerpack 2.0
! style="width: 20%" | Megapack
|-
|-
| ''System Warranty''
| ''System Warranty''
| 10 years
| 10 years
| 10 years
| 10 years
| 15 year, limited
| 15 year standard / 20 year with capacity agreement
|-
|-
| ''Battery Warranty''
| ''Battery Warranty''
|  
| 10 years
|  
| 10 years
|
|
|-
|-
| ''Inverter Warranty''
| ''Inverter Warranty''
|  
| 10 years
|  
| 10 years
|
|
|}
|}


==Codes, Standards, and Regulations==
==Codes, Standards, and Regulations==
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
{| class="wikitable  mw-collapsible" style="width: 100%; text-align: center;"
! style="width: 20%" |  
! style="width: 20%" |  
! style="width: 20%" | Powerwall 2
! style="width: 40%" | SolarLEAF
! style="width: 20%" | Powerwall+
! style="width: 40%" | REV
! style="width: 20%" | Powerpack 2.0
! style="width: 20%" | Megapack
|-
|-
| ''Safety''
| ''UL 9540''
| Rated for wet locations
| Rated for wet locations, integrated arc fault circuit interuptor, rapid shutdown
|
|
|-
| ''AC 156''
| yes
| yes
| yes
|
|  
|  
|-
|-
| ''FCC CFR Part 15, Class B''
| ''UL 9540A''
| yes
| compliant
| yes
| compliant
|
|
|-
| ''ICES 003''
| yes
|
|
|
|-
| ''IEEE 519''
|
| yes
|
|
|-
| ''IEEE 1547''
| yes
|
|
|
|-
| ''IEEE 1547A''
|
| yes
|
|
|-
| ''IEEE 62.41.2''
|
| yes
|
|
|-
| ''IEEE 693-2005''
| yes
|
|
|
|-
| ''REACH''
|
| yes
|
|
|-
| ''RoHS Directive 2011/65/EU''
| yes
|
|
|
|-
| ''UL 1623''
|
| yes
|
|
|-
| ''UL 1642''
| yes
| yes
|
|
|-
| ''UL 1699B''
|
| yes
|
|
|-
| ''UL 1741''
| yes
| yes
| yes
| yes
|-
| ''UL 1741SA''
|  
|  
| yes
|
|-
| ''UL 1778''
|
| yes
|
|
|-
|-
| ''UL 1973''
| ''UL 1973''
| yes
| yes
| yes
| yes
| yes
|-
| ''UL 60950-1''
|
| yes
|
|
|-
| ''UL 9540''
| yes
|
| yes
| yes
|-
| ''UL 9540A''
|
| yes
|
| yes
| yes
|-
|-
| ''UN 38.3''
| ''UN 38.3''
| yes
| yes
|
|
|  
|  
|}
|}
Line 853: Line 503:
{{#set:
{{#set:
  Has Product Vendor=[[Energy Storage Product Database/Yotta|Yotta]]
  Has Product Vendor=[[Energy Storage Product Database/Yotta|Yotta]]
  |Has Company Description=Yotta.
  |Has Company Description=Yotta’s approach to hybrid solar plus storage projects is unique, differentiating them in a crowded marketplace.
  |Has Storage Technology Type=Lithium ion
  |Has Storage Technology Type=Lithium iron phosphate (LFP)
  |Has Grid Domain=Residential, Commercial
  |Has Grid Domain=Commercial, Industrial
  |Has Products in Database=2
  |Has Products in Database=2
}}
}}


[[Category:Energy Storage Product Vendor]]
[[Category:Energy Storage Product Vendor]]

Latest revision as of 16:56, 31 October 2023

Yotta
Products SolarLeaf REV
Industry Commercial Commercial, Industrial
Energy Capacity 1 kWh 500 kWh
Power Capacity 0.675 kW 24 kW
Storage Murata Murata
Inverter Yotta Yotta
Controller Yotta Yotta

Founded in 2017, Yotta is a designer and developer of integrated solar plus storage solutions for commercial and industrial markets. Originally a microinverter company, their product line has expanded to include LFP energy storage systems, the SolarLEAF; DC-coupled inverters, the dual-power inverter; asset management and reporting software, Yotta Vision; and prefabricated electric vehicle charging structures supported by solar and storage for on- or off-grid contexts and applications, the REV.

History

Yotta Energy was one of seven Caltech Rocket Fund Award recipients in 2020. Yotta also recently received demonstration funding via the CEC BRIDGE awards, focused on building rapid innovation and development to green energy technology.

Deployments

EPRI will be partnering closely with Yotta on this project to deploy, measure, assess, and evaluate the performance and efficacy of their rooftop solar plus storage solution at a multifamily apartment complex in Southern California.

Products

SolarLEAF

Yotta's energy storage solution the SolarLEAF (SL-1000) is a lithium iron phosphate battery, mounted on the reverse or side of rooftop PV panels, hence the naming. This approach requires the deployment of many SolarLEAF modules in order for an installation to be of sizeable substance and efficacy. Though this increases the length of cable needed for wiring up an installation, each individual battery module can be easily carried, since the overall weight is spread out over a large number of units. The SolarLEAF is designed with passive thermal regulation technology that allows the systems to withstand being installed on top of hot roofs.

REV

The REV is a deployable EV charging system equipped with solar panels, battery energy storage, power inverters, and EV charging ports. It is meant to provide an off-grid EV charging solution to locations that cannot be serviced by grid-tied power. The battery energy capacity of the system is configurable from 50 to 300 kWh and its EV charging power capacity tops out at 24 kW. The REV is can be connected to the grid, but is also able to run off-grid, with its solar PV system, expandable from 15 to 50 kW.

Products SolarLEAF (SL-1000) REV
Industry Commercial Commercial, Industrial
Energy Capacity 1 kWh 500 kWh
Power Capacity 0.675 kW 24 kW
Storage Murata Murata
Inverter Yotta Yotta
Controller Yotta Yotta

Applications

SolarLEAF REV
Self-consumption yes yes
Backup Power yes yes
Energy Time Shift TOU yes
Peak Shaving yes yes
Demand Response yes
Demand Charge Reduction yes
Solar PV Charging yes yes
Solar (renewable) ramp limiting yes yes
Power Quality yes
Market participation
Spinning Reserves
Voltage Regulation
Frequency Regulation
Black Start
Resource Adequacy Capacity

Storage System

Yotta has reported to source its lithium iron phosphate batteries from Murata and their Fortelion line of energy storage cells.[1][2]

SolarLEAF REV
Technology Type Lithium ion phosphate Lithium ion phosphate
Storage Media Provider Murata Murata
Storage Media Model Fortelion Fortelion
Coupling Type AC AC
Charge Capacity 26.4 Ah 750 Ah
Total Energy 1 kWh 600 kWh
Usable Energy 1 kWh 600 kWh
Rated Continuous Discharge Real Power 0.675 kW 48 kW
Max Peak Discharging Real Power 60 kW
Rated Continuous Charge Real Power 0.675 kW 34 kW
Max Peak Charging Real Power
Idle Load
Response time
DC Voltage (Nominal, Converter Output) 38.4 V
DC Voltage (Range) 22 to 45 V
DC Voltage (Internal Battery)
Rated Continuous Discharge Current 15 A
Max Peak Discharging Current 15 A
Rated Continuous Charge Current 135 A
Max Peak Charging Current
Roundtrip Efficiency (AC) 97.8% (peak)

97.5% (CEC)

Roundtrip Efficiency (DC)
Degradation / Life (cycles) > 8000 cycles (80% DoD)
Depth of Discharge 0.8 0.8
Modularity yes, via additional battery modules yes, via additional battery + PV modules
Test conditions
Cooling System

Power Conversion System Specifications

The Yotta dual power mircoinverter (DPI) is installed alongside and connected to the SolarLEAF and also mounted underneath solar PV panels. The inverter is three-phase and can accept four inputs of solar PV panels or SolarLEAF. It is available in two different output voltage levels, the DPI-208 for 208 volts and the DPI-480 for 480 volts.

DPI-208 DPI-480
Inverter Make Yotta Yotta
Inverter Model DPI-208 DPI-480
Rated AC Continuous Output Real Power 5 kW 125 kW
Max AC Peak Output Real Power
Idle Load 30 W < 20 W
Rated AC Continuous Output Apparent Power 5 kVA 125 kVA
Max AC Peak Output Apparent Power
Rated Reactive Power
Rated Continuous Output Current 150.4 A (linear load), 120 A (non-linear)
Max Peak Output Current 167 A
Rated Continuous Battery Input Power 122 kW
Max Peak Battery Input Power
Maximum Battery Input Current 163 A
Maximum Output Fault Current
Overcurrent Protection Device
Maximum Supply Fault Current
Power Factor Output Range 0.8 leading to 0.8 lagging adjust from -1 to 1
Power Factor Range (full-rated power)
Imbalance for Split-Phase Loads
Total Harmonic Distortion (THD) < 3% at rated power < 5% at rated power
Roundtrip Efficiency
AC Connection Type three-phase three-phase
Nominal Output AC Voltage 230 V 480 V
Nominal Frequency 60 Hz 60 Hz
Packaging
Modularity
Cooling System natural cooling forced air with speed control

Energy Management System Specifications

Yotta's energy management system is Yotta Vision that provides users with data analytics and visibility into their system.

Vision
Energy Management System Vision
Control Capabilities solar charging, backup power, maximum power point tracking
Portal availability
Communications & Network

Environment and Mechanical

SolarLEAF REV
Mounting Roof Floor
Weight 56.7 lb
Footprint 15.75 in x 26.25 in x 4.25 in (battery) 4.0 ft x 8.1 ft x 8.7 ft
Indoor/outdoor Outdoor Outdoor
Enclosure NEMA 67 / IP 67
Ingress Rating
Noise
Operating temperature -20° to 43 °C / -4° to 109 °F
Optimum temperature
Operating humidity 0% to 90 % noncondensing (battery), 0 % to 100 % (inverter) < 95% relative humidity, non-condensing
Altitude
Modularity by design, requires multiple SolarLEAFs expandable PV and storage sizes

Warranty

SolarLEAF REV
System Warranty 10 years 10 years
Battery Warranty 10 years 10 years
Inverter Warranty 10 years 10 years

Codes, Standards, and Regulations

SolarLEAF REV
UL 9540 yes
UL 9540A compliant compliant
UL 1973 yes yes
UN 38.3 yes

References

  1. ↑ Yotta: Murata Electronics and Yotta Energy Announce Collaboration to Enable Innovative and Safe Energy Storage Solution
  2. ↑ Murata: Murata Electronics and Yotta Energy Announce Collaboration to Enable Innovative and Safe Energy Storage Solution
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