Thank Your Solar Neighbors For Saving You Money On Electric Bills

When all of the value of solar is considered - grid-tied solar owners are actually subsidizing their non-solar neighbors.
The Cool Down

Renovating homeowner shares how he slashed his appliance payback from 20 to 3 years: 'Not sure what that [contractor] is smoking'

Buying a heat pump can save you money, but one Redditor went all out to pinpoint their exact break-even point for the ...
pv-magazine-usa

Three massive grid-scale battery projects move ahead in Texas, California

Texas: SolarMax wins EPC contract for 600 MWh BESS; Spearmint nets investment for 400 MWh of BESS United States company SolarMax expects the contract for its Texas battery energy storage system (BESS) ...
pv-magazine-usa

Sunrun and HASI close $500 million distributed energy joint venture

HA Sustainable Infrastructure Capital, Inc. and Sunrun Inc. announced the closing of a joint venture to finance distributed energy assets. The agreement closed in December 2025. HASI will invest $500 ...
IEEE

Carbon Payback Time (CPBT) and Energy Payback Time (EPBT) of Residential Solar Photovoltaic Repowering

Abstract: As new photovoltaic (PV) technologies with better performance and lower prices are available in the market, the older modules with lower efficiency will likely be replaced much before the ...
GitHub

True Solar Time Calculator

A TypeScript utility for calculating True Solar Time and Equation of Time based on date and geographic coordinates (longitude, latitude). 计算真太阳时（True Solar Time）与时间均差（Equation of Time）的 TypeScript 工具库 ...
IEEE

Residential solar systems: Technology, net-metering, and financial payback

Abstract: The objective is to address both technical and financial aspects of a residential solar system. The impact of these two factors on financial paybacks of a resident is presented. This paper ...