a fundamentally safe, highly reliable solar rooftop and ... · 2.) when firefighters arrive at a...

41
A fundamentally safe, highly reliable solar rooftop and ground mount system

Upload: others

Post on 20-Aug-2020

3 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

A fundamentally safe, highly reliable solar rooftop and

ground mount system

Page 2: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

A complete, market ready, PV solution

Celebrating the start of our 5th year of operations

Fully Certified to all required UL and IEC standards

Now shipping 3rd generation product Installations in 14 US States and Europe Installer testimonials:

“I don’t care if I never install conventional PV again” “Easier to work with in so many ways” “This is a dream system”

Page 3: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

A complete system designed

as a package

Page 4: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

4

Murphy Warehouse Minneapolis, MN 40kW 51,000 kWhrs/yr

4,783 sq. ft. 444 m2

10.6 kWhrs/sq. ft. 115 kWhrs/ m2

4.6 lbs/sq. ft. 22.5 kg / m2

Page 5: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Conventional PV cells and modules

are wired in a series which is

problematic

Page 6: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Maximum reliability from sunlight to AC Electricity Generation 1 solar Series strings and central inverters (inherently unreliable) Any Disruption - Large Energy Impact

Generation 2 solar “Bolt on” electronics to conventional panels Downside – Large Number of Single Failure Parts (i.e., More to Fail) Doesn’t solve the problems inside the panel .

DC Tied

DC:DC (MPPT) DC:AC

“Microinverter”

AC Combiner

Generation 3 : tenKsolar Modules Deliver Maximum Cell Power to Bus Bus Intertie Allows Any Inverter To Supply to Grid Simplified DC:AC Box Used for AC Conversion Redundant From Cell-to-Grid Fault Tolerant: Parts Can Fail, Energy Still Flows! MAXIMUM RELIABILITY DESIGN

DC:AC Box

Page 7: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Now, make it easy to put on a

roof

Page 8: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Module’s Unique Ability to Accept Variable Illumination Results in Highly Efficient RAIS-WAVE® Configuration

South

Reflectors in Gap RAIS® PV Modules

Power: Normal Uniform Direct Light + Non-Uniform Reflected Light

Direct Lighting On Optimally Oriented RAIS® Module

Indirect Lighting From Special Reflector in the Gap

Page 9: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Make it easy to put on the

ground

Page 10: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

40’ N/S spans, 16’ E/W allow great flexibility for either Penetrating or non-penetrating ground mount.

Page 11: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Cell independence + reflection = more

KWH per watt

Page 12: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

12

Cell Independence means added light will make more energy

Conventional Solar

tenKsolar cell optimized

- Energy drops - Temperature rises - Warranty voided - Fire hazard

Non-uniform Added light

Non-uniform Added light - Energy increases

- Modest temp rise (still at or below conventional solar)

150% of rated energy

Page 13: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Design allows no single point of

failure

Page 14: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Reducing Degradation: Eliminate Single Points of Failure

We All Know Today’s Communications Infrastructure, Data Processing, Information Storage, Aircraft, Automobiles and Most Other High Reliability Systems We Use Everyday Were Only

Made Possible by Redundant Systems

So Why Are Current Solar Systems Designed With So Many Single Points of Failure?

Page 15: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Cell independence means best performance

Page 16: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

16

Cell Independence means far less loss due to shade/soil

% of maximum energy

% of maximum energy

Shade/ soiling

Shade/ soiling

Conventional Solar

tenKsolar cell optimized

Page 17: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Protect the module’s back as well as the front

Page 18: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

What About Long-Term Degradation of Power?

Ever Wonder Why Plastic Backsheets are Used on Solar Modules for Use Outdoors? Plastics are A Poor Choice As They Are Water Penetrable and A Thermal Insulator to the Module Answer: Required for 600V/1000V Isolation Ever Wonder Why CIGS and CdTe Vendors Can’t Use Plastic Backsheets to Reduce Weight? Answer: They Don’t Keep the Water Out

CIGS Module Conventional Silicon Module

CIGS Layer

Two Glass Sheets >10,000x Barrier To Water Ingress

Vs. Plastic Backsheet

Edge Seal Glass Front Sheet

Silicon Layer

Plastic Backsheet (Minimal Barrier

To Water Ingress)

Holes Poked Through For J-Box Cconnections

Glass Front Sheet

Full Metal Backsheet

(>10,000x Barrier To Water Ingress

Vs. Plastic Backsheet

Proprietary Edge Seal

tenKsolar RAIS®

Module

Page 19: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Better design eliminates most failure modes

Page 20: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Eliminating most common failure modes

2

Type of failure % of Total Failures

Corrosion 45.3

Cell or Interconnect Break 40.7

Output Lead Problem 3.9

Junction Box Problem 3.6

Delamination 3.4

Overheated wires, diodes, etc. 1.5

Mechanical damage 1.4

Defective Bypass Diodes 0.2

Corrosion: tenKsolar panels laminate cells between aluminum back sheet, glass front RESULT: 104 stronger barrier to moisture

Cell or interconnect break: tenKsolar panels have more stable laminate stack (Al/Glass) protecting cells, keeping interconnects stable. RESULT: Interconnect failures or cell cracks are uncommon. If they do occur, failures have negligible impact on power output.

Source: NREL

Page 21: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Make the system completely safe

Page 22: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Belgian firefighters organization threatens to not fight fires in buildings equipped with solar panels January 23, 2012: According to Belgian news site RTBF, the president of Belgium’s Royal Association of Firefighters, Marc Gilbert, has urged the government to enact legislation that would help prevent firefighters from being injured by rooftop photovoltaic (PV) installations, adding that firefighters may choose not “intervene in a building equipped with photovoltaic panels” if a person’s life is not at risk …..

Conventional solar poses two very grave fire safety risks: 1.) Conventional solar strings make power at 600V and if the sun is shining they do not turn off – no matter what –- so a fault can cause a continuous arc until it ignites. 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility power is turned off.

Only tenKsolar solves both with better design. All tenKsolar modules have : - Internal voltage that is less than 10 volts - arcing not possible - Automatic shutdown if there is an AC short or if the building power is turned off With tenKsolar you can be sure of complete safety.

Fundamentally safe solar

Page 23: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Make the system easy and fast to

install

Page 24: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

System Features – Very Simple Installation Add Rail Section Using Spacer Drop in PV Panel Drop in Reflector Panel Close Gap w/ Pin Next … (No Pre-Assembly of Panel Attachments)

Installer Clocked Estimates –

30 – 50% Less Time To Install vs. Conventional Systems

And You Can Install in the Rain or Snow!

(De-Energized Modules, Water Resilient Bus Connectors)

Page 25: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Eliminate O&M costs

Page 26: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Less loss of power in the real world

Real world problems include soiling AND damage over time tenKsolar dramatically reduces the impact of both

Assume 5 of 10 Modules With Similar Coverage

Conventional

Bolt-On Optimizer Or Microinverter

RAIS®

Page 27: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Vastly Simplified Diagnostics

Tired of Using Jumper Cords to Look For Low Performing Panels? Then Having to “Prove” to the Panel Supplier It is Really a Low Performer? For a RAIS® Module – It Is Not Dependent on Any Other It Tracks and Communicates All Information About the Module For Simplified Roof Tracking – It Has a Confirming LED On the Front Side! (No Need to Dig Out the Map) LED Reports All Information About the Module Including Power Production Simplified Installation and Operation …

Add picture of LED …

Page 28: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

tenKsolar RAIS Module: Status Indicator

Each Module has a blue LED Status Indicator

Easy problem identification • Poor connection • Module Problem

The codes for trouble shooting can be found in the back of the RAIS Module Manual

28

Page 29: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Easy system design

Page 30: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

More Profitable- Easier to Design-In on a Building

Parallel connections between modules eliminates need for string balancing

Modular system design allows placement of system in and around roof features to maximize utilization of roof

Page 31: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility
Page 32: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility
Page 33: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

tenKsolar Dashed lined indicates area required for equal 728kWp solar arrays

SunPower

4.63.6

2.9

tenKsolar SunPower Yingli

Integrator Revenue ($mm at $4/Wp)

Example 150k ft2

rooftop in Newark, NJ 90% usable

3323

19

tenKsolar SunPower Yingli

Energy Production (GWhrs over 25 yrs)

Yingli

33

More Energy- >30% More Revenue and Energy Per Rooftop

Page 34: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Native 3.5 lbs / sq ft of system

Reflectors and modules create a self-supporting “wave” structure

Designed for no roof penetration: wind “floats” over interconnected and stiff system allowing for minimal ballast

Can be tethered at four corners for locations where seismic activity requires additional re-enforcement.

34

Better Solution- Low-Weight Non-Penetrating Design

Page 35: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Simple Assembly with Integrated Racking

Reflectors and modules create a self-supporting “wave” structure No roof penetration: wind “floats” over interconnected and stiff

system allowing for minimal ballast; meets 90 mph code Decreases install labor in support of lower installed cost

35

Page 36: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

Attractive, functional design

Page 37: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility
Page 38: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility
Page 39: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility
Page 40: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility
Page 41: A fundamentally safe, highly reliable solar rooftop and ... · 2.) When firefighters arrive at a building with conventional solar, they must contend with live voltage even when utility

THANK YOU!

Jim Losleben – tenKsolar VP Business Development [email protected] 651-686-9547 Zev Kujolic – tenKsolar Inside Sales [email protected] 952-303-7661