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Solar usage in the USA
Solar usage in the USA
Solar usage in the USA is rapidly becoming cheaper and growing increasingly faster.
In 2004, the average price of an installed 10 kilowatt rooftop solar module was about US$3.50 per watt. As of early 2021 an installed 10 kilowatt system is likely to ranges from $17,750 to $24,000 ($1.77 -$2.40 per watt).
Amount of solar energy available in the USA in a calendar year. Pic: https://www.nrel.gov/
How does system size impact the cost of solar?
Knowing the average cost per watt is helpful, but what does $1.77-$2.40 per watt actually mean for you? The cost of installing solar depends primarily on how much electricity you want to generate – a bigger system will cost more because you’ll need to buy more equipment and more labour will be needed to install it.
Solar usage in the USA – higher solar cell efficiency
This fall in price is due mainly to higher solar cell efficiency. Until recently, most high-quality solar cells were about 18% efficient. In 2020, however, the global JinkoSolar company raised that to 24.79%. The launch of those ultra-efficient modules lowered the USA’s domestic average cost of solar-produced electricity. It is now (early 2021) about US$38 per megawatt-hour (MWh). This cost is similar to that of producing electricity from newly built coal-fired power plants. Currently, the most efficient solar projects in Chile, the Middle-East and China produce electricity for under US$30/MWh. Wind power projects in Brazil, the USA and India are likewise.
The rise in production capacity and efficiency is primarily in China. It is now the centre of global solar panel manufacturing. China’s module production was 17% higher in early 2020 than in the same period of 2019. This despite exports falling slightly.
The implications of solar energy increase are immense. Overall emissions are substantially reduced. Apart from making, transporting and installing solar modules and associated electronics, it is zero thereon. Most solar modules last for at least 25 years. Meanwhile, appliance makers seek to reduce energy use.
Renewable energy tax credits
Under the Consolidated Appropriations Act of 2021, the renewable energy tax credits for fuel cells, small wind turbines, and geothermal heat pumps now feature a gradual step down in the credit value, the same as those for solar energy systems.Tax Credit:
- 30% for systems placed in service by 12/31/2019
- 26% for systems placed in service after 12/31/2019 and before 01/01/2023
- 22% for systems placed in service after 12/31/2022 and before 01/01/2024
Expires: December 31, 2023
Details: Existing homes and new construction qualify. Both principal residences and second homes qualify. Rentals do not qualify.
The USA’s solar energy market is forecast to increase. That increase is a likely (compounded) annual 17.3% throughout 2020-2025. Tax credits on renewable energy-related matters may expire in 2021. Solar power investors in solar power will expedite finishing projects. This trend may partly offset COVID-19 investment impacts.
A 30% tariff on solar module imports has already forced USA producers to become more competitive. Furthermore, to increase domestic manufacturing. Cost-effective battery energy storage technology is also needed. Significant developments are already well underway.
It is now all but sure that solar (and wind) power will continue to displace traditional base-load power sources. This will happen not just in the USA. It will be worldwide.
Articles by Category
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Electrical (general)
- Caravan fridge problems – how to fix the most common faults
- Caravan Fuses and Circuit Breakers – how to know which to use
- 12 volts dc from 24 volts dc
- AGM batteries for caravans – they are still worth using
- Battery charging and battery chargers – how to do it properly
- Blade fuse problems in caravans – they may burn or melt
- Dc-dc charging – how to speed alternator charging
- Electrical converter problems in caravans – problems when used for free camping
- Electrical converters in RVs – they’re unsuitable for free-camping
- Fast battery charging from generators – cheap, effective and relatively simply
- Grid connect solar modules for RVs – here’s how you can use them
- Imported RV electrics
- Interconnecting batteries in parallel or series – here’s how and why
- Inverters for caravans – and motor homes too
- LiFePO4 jump starters really do work – they power other things too
- Lighting for caravans – it makes every sense to install LEDs
- Lithium battery rival
- Make caravan fridges work as claimed – here’s how to do it
- Quietening caravan water pumps – easy and cheap to do
- RV Alternator Charging Problems
- RV Batteries
- RV electrical wiring – twin-wire or chassis return – here’s why twin-wire is usually better
- RV Fuel cells – great idea, but cost is too high
- RV supply cables – choices of current capacity and length
- Solar regulators with current shunts – how to fix misleading readings
- TV interference from LEDs – here’s what causes it
- Variable voltage alternator problems with caravans – how to fix
Batteries & Battery Charging
- 12 volts dc from 24 volts dc
- AGM batteries for caravans – they are still worth using
- Are Lithium-ion Batteries Worth Their Price – homes and properties
- Australian Battery Breakthrough
- Baghdad battery myth
- Battery capacity for home and property
- Battery capacity required for cabins and RVs
- Battery charging and battery chargers – how to do it properly
- Battery ventilation is vital – why take any risk?
- Best Batteries for Solar Power Storage
- Blade fuse problems in caravans – they may burn or melt
- Connecting caravan batteries – there’s no magic way of doing it!
- Dc-dc charging – how to speed alternator charging
- Electric and Hybrid Vehicles
- Electric Vehicle Batteries
- Electrical converter problems in caravans – problems when used for free camping
- Electrolysis corrosion in vehicles – how to find and fix it
- Fast battery charging from generators – cheap, effective and relatively simply
- Generator Battery Charging – Quickly and Deeply
- How long can lead acid batteries last
- How to tell caravan battery charge – energy monitoring explained
- Imported RV electrics
- Interconnecting batteries in parallel or series – here’s how and why
- Lead acid batteries for caravans – they are still a good buy
- LiFePO4 jump starters really do work – they power other things too
- Lighting for caravans – it makes every sense to install LEDs
- Lithium batteries for caravans
- Lithium battery rival
- Lithium battery safety in caravans – are they all the same?
- Lithium-iron batteries in RVs – they are safe to use
- RV Alternator Charging Problems
- RV Batteries
- RV electrical wiring – twin-wire or chassis return – here’s why twin-wire is usually better
- RV Fuel cells – great idea, but cost is too high
- Variable voltage alternator problems with caravans – how to fix
- What Peukert really meant – but is so often misunderstood
Trailer/Tow Vehicle Behaviour & Suspension
- Caravan and tow vehicle dynamics
- Caravan design need for change
- Caravan nose weight – it’s vital for safe towing
- Caravan suspension – it is mostly misunderstood
- Caravan weight safe to tow – depends on what tows it
- Caravan wheel placement
- Caravan Length and Stability
- Caravan Tow Ball Weight – how much
- 10 Tips for Safe Caravan Towing
- Choosing a Caravan Tow Vehicle
- Do Not Trust Caravan Declared Mass
- Fifth wheelers are safer – here’s why they are
- Gross Combined Mass Upgrades
- How caravan and tow vehicles interact
- Is Caravan Independent Suspension Essential? – the answer is no.
- Loading a Caravan Safely
- Making stable caravans – here’s how and why to do it
- Mechanical sway-control has little value at speed
- Motorhome and trailer tyres
- Need for a WDH – avoid using one if possible
- Overhung Caravan Hitches
- Overweight RVs – a police point of view
- Reducing caravan sway – here’s how to minimise the causes
- RV Accident Data (Australia)
- RV Industry Changes Needed
- Should I grease my tow ball?
- Tow Vehicle/Caravan Weight Ratio Explained
- Towing Without a WDH – Weight Distributing Hitch
- Trailer Dynamics Simply Explained
- Warning for Potential Caravan Buyers – how to buy a caravan
- Weight Distribution Hitch limits cornering
- Weight distribution hitch setup – how much correction is needed
- Wheels falling off trailers – and how to stop it happening
- Why caravans sway and roll over – how to prevent it
Cooling and Heating
- Caravan air conditioning – here’s how
- Caravan fridge problems – how to fix the most common faults
- Carbon Monoxide Poisoning
- Diesel heating in caravans and motorhomes – it’s easy, effective and safe
- Make caravan fridges work as claimed – here’s how to do it
- RV Fridge Basics
- Safe RV heating – use diesel or LP gas
General
- Caravan air conditioning – here’s how
- Caravan design need for change
- Caravan facts and opinions – the nonsense so often on caravan forums
- Caravan suspension – it is mostly misunderstood
- 10 Tips for RVing Around Australia
- All solar house – self-building an off-grid all solar house
- Are Lithium-ion Batteries Worth Their Price – homes and properties
- Australian RV Road Rules – Summary
- Baghdad battery myth
- Buy a New RV in 5 Steps
- Buying used caravans – what to check
- Choosing a Caravan Tow Vehicle
- Choosing the right interior fittings for an Australian RV
- Convert to your own all solar home
- Driving across Africa – in 1956/60 the very last time it was possible
- Electric and Hybrid Vehicles
- Electric Vehicle History
- Electric Vehicle Home Charging
- Electric Vehicle Motors
- Electrolysis corrosion in vehicles – how to find and fix it
- Energy and Power
- Ensuring Successful Solar Projects
- Fuel savers do not work – almost all are scams
- Generators for Cabins and RVs
- Generators for Home and Property Systems
- Going off the grid
- Have portable solar in your rented home
- How much solar capacity do I need?
- How much solar energy available?
- How much solar input – here’s how to find out
- How to free camp legally in Australia
- How to stop paying for electricity
- Inverters for Homes and Properties
- Is a 4 wheel drive needed for motorhomes
- Is Napisan a Safe Toilet Chemical?
- Lightning risk in RVs – how to reduce that risk
- Living with solar – how make it all work
- Napisan and Look-Alikes safe for Septic Tanks – a professor’s view
- Our Solar Equipped RVs
- Overhung Caravan Hitches
- Problems with stand-alone solar – much applies also to RVs
- Quietening caravan water pumps – easy and cheap to do
- Retarding rust electronically – claims are exaggerated
- RV fault issues – who is responsible?
- RV forum common sense – a rare commodity?
- RV Layout – How to Choose the Best
- RV Solar and Alternator Charging
- RV Solar Basics
- RV Toilets – Which is Best?
- Safe toilet chemicals – can Napisan be used in septic tanks?
RV Solar
- Australian Battery Breakthrough
- Grid connect solar modules for RVs – here’s how you can use them
- How much solar input – here’s how to find out
- How to tell caravan battery charge – energy monitoring explained
- Lithium batteries for caravans
- Lithium battery safety in caravans – are they all the same?
- Our solar equipped RVs – all proved a major success
- Problems with stand-alone solar – much applies also to RVs
- RV Batteries
- Solar input available for caravans – know what’s available and increase it too
- Solar regulators with current shunts – how to fix misleading readings
Travel
- Caravan design need for change
- Caravan tare weight issues – some declared weights may not be correct
- Caravan wheel placement
- Caravan Length and Stability
- Caravan Tow Ball Weight – how much
- 10 Tips for RVing Around Australia
- Australian Road Rules Confuse
- Australian RV and towing rules and regulations – a general guide
- Australian RV Road Rules – Summary
- Best Way to RV Around Australia
- Buy a New RV in 5 Steps
- Choosing a Caravan Tow Vehicle
- Choosing the right interior fittings for an Australian RV
- Claims for dual-cab ute towing capacity mislead caravan buyers
- Do Not Trust Caravan Declared Mass
- Driving across Africa – in 1956/60 the very last time it was possible
- Electrical converters in RVs – they’re unsuitable for free-camping
- Free camp safely in Australia – this article shows how
- How to free camp legally in Australia
- How to Reverse a Caravan
- Is a 4 wheel drive needed for motorhomes
- Loading a Caravan Safely
- Microwave for RV oven power draw – it’s more than many users think
- Motorhome and trailer tyres
- Need for a WDH – avoid using one if possible
- Overhung Caravan Hitches
- Quietening caravan water pumps – easy and cheap to do
- Reducing caravan sway – here’s how to minimise the causes
- Retarding rust electronically – claims are exaggerated
- RV forum common sense – a rare commodity?
- RV Fridge Basics
- RV Layout – How to Choose the Best
- RV Toilets – Which is Best?
- Safe toilet chemicals – can Napisan be used in septic tanks?
- Sleep apnoea machines for camping – correct choice is vital
- Solar input available for caravans – know what’s available and increase it too
- Top 10 Australian RV Apps
- TV interference from LEDs – here’s what causes it
- Weight Distribution Hitch limits cornering
- What off-road really means
Health & Safety
- Caravan Fuses and Circuit Breakers – how to know which to use
- Caravan nose weight – it’s vital for safe towing
- Caravan weight safe to tow – depends on what tows it
- 10 Tips for Safe Caravan Towing
- Battery ventilation is vital – why take any risk?
- Blade fuse problems in caravans – they may burn or melt
- Carbon Monoxide Poisoning
- Claims for dual-cab ute towing capacity mislead caravan buyers
- Diesel heating in caravans and motorhomes – it’s easy, effective and safe
- Fifth wheelers are safer – here’s why they are
- Free camp safely in Australia – this article shows how
- How to Reverse a Caravan
- Is Napisan a Safe Toilet Chemical?
- Lightning risk in RVs – how to reduce that risk
- LP Gas risk in caravans – deaths & brain damage still occurs
- Making stable caravans – here’s how and why to do it
- Mechanical sway-control has little value at speed
- Napisan and Look-Alikes safe for Septic Tanks – a professor’s view
- Overhung Caravan Hitches
- Overweight RVs – a police point of view
- RV Accident Data (Australia)
- RV Industry Changes Needed
- RV supply cables – choices of current capacity and length
- Safe RV heating – use diesel or LP gas
- Safe toilet chemicals – can Napisan be used in septic tanks?
- Sleep apnoea machines for camping – correct choice is vital
- Towing Without a WDH – Weight Distributing Hitch
- Using correct size cables for RVs is essential
Legal & Compliance
- Caravan and motorhome compliance
- Caravan design need for change
- Caravan tare weight issues – some declared weights may not be correct
- Australian Road Rules Confuse
- Australian RV and towing rules and regulations – a general guide
- Australian RV Road Rules – Summary
- Buying used caravans – what to check
- Gross Combined Mass Upgrades
- Imported RVs – there can be major problems re-registering private imports
- RV Compliance – Here’s how to know
- RV electrical work – Victorian exception
- RV fault issues – who is responsible?
- Tow Vehicle & Caravan Weight Definitions
The Camper Trailer Book
Electric Vehicles
Household Solar
- Ensuring Successful Solar Projects
- Refrigerators for Home and Property Solar
- Solar Regulators for Home and Property Systems
- Battery capacity for home and property
- Best Batteries for Solar Power Storage
- Going off the grid
- Vital things about solar in the USA
- TOP 10 SOLAR SCAMS
- Generators for Home and Property Systems
- Solar Modules for Homes and Properties
- Solar Shadowing – reducing the losses
- Grid connect solar problems – what vendors may not reveal
- Inverters for Homes and Properties
- How to stop paying for electricity
- Have portable solar in your rented home
- Convert to your own all solar home
- Fuel cells for homes and properties
- Upgrading solar system has unexpected traps
- Solar charge your electric car at home
Want to find out more? Our books cover all these topics and a lot more.
Whether you’re buying your first RV or updating to a bigger, more comfortable rig, there are a great many things you need to know and consider. How to Choose and Buy an RV breaks things down so that you can decide what you want and whether or not what you’ve found is right for you.
Solar That Really Works! explains every detail of designing and installing solar in boats, camper trailers, caravans and motorhomes.
Caravan & Motorhome Electrics covers every aspect of designing, installing and fault finding of the electrics in fifth wheel and conventional caravans, camper trailers and motorhomes.
The Caravan & Motorhome Book covers every conceivable aspect of camper trailer, caravan and fifth wheel caravan, campervan and motorhome usage.
Caravans and their tow vehicles rarely jack-knife and roll over – but when they do the results are catastrophic. The cause, and how to prevent it, is explained here. Why Caravans Roll Over offers solid advice for keeping yourself safe on the road.
learn more
Solar Success explains how to design and build home and property systems that ensures affordable solar success first and every time.
Between 1959 and 1961 Collyn Rivers and Antony Fleming drove a Bedford QLR off-road truck twice the length and breadth of Africa studying road surface conditions.
A 43 minute film about their adventure, produced and narrated by Antony Fleming, has been viewed on YouTube more than 1.6 million times!
To view the film, and also read Collyn’s telling of the tale, just click the button below.
Whether you’re buying your first RV or updating to a bigger, more comfortable rig, there are a great many things you need to know and consider. This book breaks things down so that you can decide what you want and whether or not what you’ve found is right for you. It’s technically sound and comprehensive so that you can proceed with complete confidence. How to Choose and Buy an RV is the ultimate guide for those times when you want to, well, choose and buy an RV.
Caravans and their tow vehicles rarely jack-knife and roll over – but when they do the results are catastrophic. The cause, and how to prevent it, is explained here. Why Caravans Roll Over offers solid advice for keeping yourself safe on the road.
Caravan & Motorhome Electrics is the totally rewritten successor to the original globally selling Motorhome Electrics. The book’s content now also covers every aspect of designing, installing and fault finding of the electrics in fifth wheel and conventional caravans, camper trailers and motorhomes.
Solar Success explains how to design and build home and property systems that ensures affordable solar success first and every time.
The Caravan & Motorhome Book covers every conceivable aspect of camper trailer, caravan and fifth wheel caravan, campervan and motorhome usage. Like all of Collyn Rivers’ books it is technically sound yet written in plain English.
Solar That Really Works! explains, in clear English, every detail of designing and installing solar in boats, camper trailers, caravans and motorhomes. It is up-to-date, valid globally and technically accurate. It is clear, concise and easy to follow without sacrificing important detail.
This is Collyn Rivers’ newest book. Building on his years of experience and extensive knowledge of engineering and all things caravan and RV, this is the book you need with you when shopping for an RV.
Collyn Rivers has done it again! – if you need to know anything about motorhome electrics, then this book is for you… Collyn must be, without doubt, the foremost authority in Australia on this subject.
Why Caravans Roll Over….and How to Prevent It
Should be compulsory reading for everyone involved with Caravans: Design / Engineering, Marketing, Journalism (print & electronic), Regulations, Inspections, Driver-Training, Caravan Clubs, Towing and Modifications.
Collyn is an accomplished engineer who knows how to design and build successful systems. It is refreshing to see practical advice written in plain language when there is so little solar information around. . . this is an essential text . . . you won’t find a better guide.
Without doubt, this is the best book we have ever read . . . it will be treasured, and read on a regular basis.