Lower My Energy Bill Report

Enter your monthly electricity usage and cost, choose a savings measure (Solar Only, Solar + Battery, or Energy Efficiency), and the calculator models three scenarios (Low, Medium, High) showing potential savings. You can also compare Cash, Loan, and PPA financing options side by side in your personalized report.

Buying solar (cash or loan) gives you system ownership and typically the highest long-term savings. Financing spreads costs over time, while PPAs charge you for energy produced but usually limit ownership, flexibility, and long-term savings. The Climapp.io report compares all three options so you can see which works best for your situation.

The number of panels depends on your electricity usage, roof orientation, and local sunlight hours. A typical home uses 15 to 20 panels. The Climapp.io calculator sizes a recommended system based on the usage you enter, so you can see exactly how much production is needed to offset your bill.

The payback period is how long it takes for your solar savings to equal your upfront investment. Most residential systems pay for themselves in 6 to 12 years, depending on system cost, electricity rates, and financing. After payback, you enjoy years of reduced or free electricity.

Battery storage lets you store excess solar energy for use during peak evening hours or outages, which can increase savings especially under time-of-use rates. The calculator includes a Solar + Battery option so you can compare the added cost against additional savings before making a decision.

Time-of-Use rates change the price of electricity depending on when it's used. Solar typically produces energy during the day, while many utilities charge the highest rates in the evening, which can reduce savings unless usage is shifted or a battery is added.

Under Net Energy Metering, excess solar energy sent to the grid earns credits on your bill. The value of those credits depends on your tariff and NEM rules, and they are often worth less than the retail rate you pay when importing electricity.

A True-Up bill is an annual reconciliation where your utility totals your imports, exports, credits, and charges over the year. It can be high if exports are credited at low values, peak-hour usage is high, or fixed and non-bypassable charges accumulate.

Most utilities charge fixed fees and non-bypassable charges that solar cannot offset. In addition, electricity used when solar isn't producing — such as evenings or cloudy days — may still be billed at higher rates.

Tiered rates charge more as total monthly usage increases past set thresholds. Time-of-Use billing changes the price based on when electricity is used, often making peak evening hours the most expensive regardless of total usage.

Net energy charges represent the difference between electricity you import from the grid and credits earned for electricity your solar system exports. The final amount depends on your tariff's pricing rules and export credit values.

System size (kW) is the peak power rating of the solar array, production (kWh) is the expected annual energy generated, and offset percentage estimates how much of your electricity usage the system is designed to cover. These values depend on assumptions about sunlight, shading, and future usage.

Renewable Energy Credits represent the environmental attributes of renewable electricity generation. In most residential solar agreements, RECs are transferred to utilities or installers, meaning ratepayers usually do not receive direct financial value from them.

Buying solar (cash or loan) gives you system ownership and typically the highest long-term savings. Financing spreads costs over time, while PPAs charge you for energy produced but usually limit ownership, flexibility, and long-term savings.

Savings estimates depend on assumptions about utility rates, tariff structures, export credits, system performance, degradation, and financing terms. Small differences in these assumptions can result in large differences in projected savings.