Solar & UPS
How Many Solar Panels Do You Need to Run a 1.5 Ton AC?
About five or six 550 W panels run a 1.5 ton inverter AC through a sunny day. The method for any AC size, plus the inverter and what it takes at night.
4 min read
Solar & UPS
Sizing a backup system comes down to two numbers, watts for what runs at once and watt-hours for how long, and most disappointments trace back to one of them or to the wiring in between. These guides cover load sizing, the appliances that empty a battery fastest, the difference between a UPS and an inverter, on-grid, off-grid and hybrid solar, solar output through the seasons, common installation mistakes, and how a UPS compares with a generator or solar for load shedding and storm outages.
13 guides
Solar & UPS
Home Battery Backup Without Solar: Does It Make Sense?
Yes, for outages: a grid-charged battery runs the essentials with no fuel or noise. How to size one, what it costs to run, and your options.
4 min read
Solar & UPS
On-Grid vs Off-Grid vs Hybrid Solar: Which System Do You Need?
On-grid solar cuts the bill but goes dark in a power cut, off-grid runs on batteries alone, and hybrid does both. How to choose, and the hybrid trap.
4 min read
Solar & UPS
UPS vs Inverter: What Is the Difference, and Which Do You Need?
A computer UPS switches in milliseconds for minutes of backup; a home inverter runs fans and lights for hours. How to tell them apart, and what IPS means.
4 min read
Outage Prep
Before You Buy an Inverter, Battery or Power Station: Checklist (Printable)
A printable checklist of the specs and questions that matter before buying a home inverter, a battery or a power station, and the sales claims to ignore.
3 min read
Power Stations
Can a Power Station Charge from Solar Panels? Setup Explained
How to match solar panels to a power station's input voltage and current, series or parallel wiring, cold-weather voltage, and realistic charge times.
4 min read
Solar & UPS
How Many Appliances Can My Inverter Support? (Understanding Load)
Two limits decide it: watts for what runs at once, watt-hours for how long. Work out both, including the start-up surge that trips inverters.
7 min read
Solar & UPS
UPS vs Generator vs Solar – Which Backup Is Best for Home?
Battery, generator or panels? What each actually runs, what it costs over five years, and the safety rules — matched to how your outages behave.
8 min read
Solar & UPS
Why Do My Fans Run Slower on UPS Power?
Fan speed follows voltage, and turning force its square, so a small sag shows. How to tell a weak battery from a waveform problem or a tired fan.
6 min read
Solar & UPS
What Appliances Should You Avoid Running on a UPS/Inverter?
Nothing is truly forbidden, but an iron uses a whole evening of backup in half an hour. What each appliance costs in runtime, and what to move off.
6 min read
Solar & UPS
Solar Panels Producing Less Power in Winter – Is It Normal?
Yes — expect roughly half of summer output. The sum that tells you whether your drop is normal, or whether dust, shading or settings cost you more.
7 min read
Solar & UPS
Common Mistakes to Avoid When Installing a Home UPS
Most poor UPS installs fail on two things: cable too thin for the current, and no fuse between battery and inverter. The numbers for both, and the rest.
6 min read
Solar & UPS
Can I Run an Air Conditioner on My Home UPS or Inverter?
Four hours of a 1.5 ton AC needs about eight batteries. The arithmetic behind that, what a workable setup looks like, and what to do instead.
5 min read