Design and build a more energy-efficient home
NetZeroNow is a UK guide for homeowners, landlords, and renovators comparing insulation, heat pumps, solar, batteries, EV charging, smart controls, and tariffs.
We publish practical guides, calculators, worked examples, and funding explainers to help you understand trade-offs before you ask for quotes or commit to a major upgrade.
Start your journey
Find the right starting point
Work out whether you should begin with insulation, grants, heating, solar, or tariff changes based on the way your home currently performs.
Use calculators with visible assumptions
Estimate heat pump size, solar generation, EV charging costs, U-values, and home energy emissions using tools that explain the main assumptions behind the result.
Research funding and rules
Check eligibility for grants, understand planning and maintenance issues, and compare the practical pros and cons of each technology.
What You Can Do On This Site
- Read UK-specific explainers on insulation, heat pumps, solar PV, home batteries, EV charging, smart controls, and energy tariffs.
- Compare common retrofit routes before speaking to an installer or applying for funding.
- Estimate likely outcomes with interactive calculators and plain-English methodology notes.
- Browse troubleshooting pages for common performance problems after installation.
- Review worked retrofit examples that show how different property types can approach upgrades.
Start With Your Situation
- High heating bills and draughts: start with insulation, quick wins, and our home energy assessment guide.
- Replacing an old boiler: compare heat pumps, heat pump grants, and installer guidance.
- Thinking about rooftop generation: review solar, battery integration, and export tariffs.
- Charging an EV at home: compare charger options, charging costs, and smart tariffs.
- Not sure what to do first: follow our get started roadmap and grant eligibility guide.
Energy measures
Explore the main technologies and upgrades available for UK homes.
Heat pumps
Low-carbon heating systems that move heat rather than generating it through combustion.
Insulation
Loft, wall, floor, glazing, and draught-proofing measures that reduce heat loss first.
Solar PV
Roof-mounted generation, export income, and self-consumption planning for UK households.
Batteries
Storage, battery sizing, smart charging, safety, and integration with solar or tariffs.
EV charging
Home charger options, running costs, grant routes, and public network guidance.
Smart controls
Thermostats, monitoring, automation, and demand-shifting tools that improve system performance.
Energy tariffs
Standard, time-of-use, export, and dynamic tariffs for homes with flexible demand.
Why Readers Use NetZeroNow
- We focus on UK homes, grants, rules, and cost assumptions instead of generic global advice.
- We link core trust pages openly, including our about page, editorial policy, methodology, and contact details.
- We separate editorial decisions from revenue and explain that on our how we make money page.
- We publish bylined pages with visible update dates so readers can judge whether a guide is current enough for their decision.
- We do not publish pay-to-rank installer lists or sponsored recommendations disguised as editorial content.
Tools and calculators
Interactive tools to help you estimate costs, savings, and performance.
Support and guidance
Help with planning, funding, maintenance, troubleshooting, and next steps.
Written by NetZeroNow Editorial Team | Last updated on 2026-03-30